Lab Gruppen D Series High Power Installation Platform User Manual

Lab Gruppen D Series High Power Installation Platform

Product Information

Specifications:

• Model: D SERIES
• Lake Variants: D 200:4L, D 120:4L, D 80:4L, D 40:4L, D 20:4L, D 10:4L
• Rev: 3.0.1

Operation Manual

1. Important Safety Instructions

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. Use only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused
    for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

15. Use the mains plug to disconnect the apparatus from the mains.

16. WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.

17. Do not expose this equipment to dripping or splashing and ensure that no objects filled with liquids, such as vases, are placed on the equipment.

18. The mains plug of the power supply cord shall remain readily operable.

19. Do not connect the unit’s output to any other voltage source such as battery, mains source, or power supply, regardless of whether the unit is turned on or off.

20. Do not remove the top (or bottom) cover. Removal of the cover will expose hazardous voltages. There are no user serviceable parts= inside and removal may void the warranty.

21. An experienced user shall always supervise this professional audio equipment, especially if inexperienced adults or minors are using the equipment.

22. The US National Differences clause 16.3 requires that network cables must be flame rated VW-1.

Approvals

This equipment conforms to the requirements of the EMC Directive 2014/30/EU and the requirements of the Low Voltage Directive 2014/35/EU.

Product Usage Instructions

Safety Precautions

Before using the device, it is important to familiarize yourself with the following safety instructions:

• Read and keep the safety instructions provided in the manual.
• Follow all instructions and warnings mentioned in the manual.
• Avoid using the device near water to prevent any electrical hazards.
• Clean the device only with a dry cloth to avoid damage.
• Ensure that the ventilation openings are not blocked to prevent overheating.
• Install the device according to the manufacturer’s instructions to ensure proper operation.
• Avoid placing the device near heat sources such as radiators or stoves.
• Do not tamper with or modify the polarized or grounding-type plug.
• Protect the power cord from being pinched or walked on.
• Use only manufacturer-specified attachments and accessories.
• When using a cart or stand, exercise caution to prevent tip-over accidents.
• Unplug the device during lightning storms or when it is not in use for long periods of time.
• Contact qualified service personnel for any servicing needs or if the device has been damaged in any way.
• Use the mains plug to disconnect the device from the power source.
• Avoid exposing the device to rain or moisture to reduce the risk of fire or electric shock.
• Avoid placing objects filled with liquids on the device to prevent damage.
• Do not remove the cover of the device as it may expose hazardous voltages and void the warranty.
• Always supervise the use of this professional audio equipment, especially when inexperienced users are involved.
• Ensure network cables meet the flame rating VW-1 as required by the US National Differences clause 16.3.

Frequently Asked Questions

Q: What are the Lake Variants of the D SERIES?

A: The Lake Variants of the D SERIES include D 200:4L, D 120:4L, D 80:4L, D 40:4L, D 20:4L, and D 10:4L.

Q: What approvals does this equipment have?

A: This equipment conforms to the requirements of the EMC Directive 2014/30/EU and the requirements of the Low Voltage Directive 2014/35/EU.

Lake Variants:
D 200:4L
D 120:4L
D 80:4L
D 40:4L
D 20:4L
D 10:4L

Important safety instructions

Before using the device, be sure to carefully read the Safety Instructions. Keep this document with the device at all times.

1. Read these instructions.
2. Keep these instructions
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
15. Use the mains plug to disconnect the appartus from the mains.
16. WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
17. Do not expose this equipment to dripping or splashing and ensure that no objects filled with liquids, such as vases, are placed on the equipment.
18. The mains plug of the power supply cord shall remain readily operable.
19. Do not connect the unit’s output to any other voltage source such as battery, mains source, or power supply, regardless of whether the unit is turned on or off.
20. Do not remove the top (or bottom) cover. Removal of the cover will expose hazardous voltages. There are no user serviceable parts inside and removal may void the warranty.
21. An experienced user shall always supervise this professional audio equipment, especially if inexperienced adults or minors are using the equipment.
22. The US National Differences clause 16.3 requires that network cables must be flame rated VW-1.

Approvals

This equipment conforms to the requirements of the EMC Directive 2014/30/EU and the requirements of the Low Voltage Directive 2014/35/EU.
Standards applied: EMC Emission
EN55103-1, E4
EMC Immunity EN55103-2, E5, with S/N below 1% at normal operation level.
Electrical Safety EN60065, Class I
This equipment is tested and listed according to the U.S. safety standard ANSI/ UL 60065 and Canadian safety standard CSA C22.2
NO. 60065. Intertek made the tests and they are a Nationally Recognized Testing Laboratory (NRTL).

Warnings

Explanation of warning symbols

The lightning bolt triangle is used to alert the user to the presence of un- insulated “dangerous voltages” within the unit’s chassis that may be of sufficient magnitude to constitute a risk of electric shock to humans.
The exclamation point triangle is used to alert the user to presence of important operating and service instructions in the literature accompanying the product.

Warnings
To prevent electric shock do not remove top or bottom covers. No user serviceable parts inside, refer servicing to qualified service personnel.

To completely disconnect this equipment from the AC mains, disconnect the power supply cord plug from the AC receptacle. The mains plug of the power supply cord shall remain readily operable.
To reduce risk of fire or electric shock, do not expose this apparatus to rain or moisture.
Do not expose this system/apparatus to dripping or splashing and ensure that no objects filled with liquids, such as vases, are placed on the apparatus.
This apparatus must be connected to a mains socket outlet with a protective earthing connection.
The mains plug is used as a disconnect device and shall remain readily operable.

Caution
To reduce the risk of fire or electric shock, do not remove screws. No user- serviceable parts inside. Refer servicing to qualified service personnel.

User responsibility

1. Mains connection grounding
   Your amplifier must be connected to a grounded socket outlet.

2. Speaker output hazard on amplifiers
   Amplifiers are capable of producing hazardous output voltages. To avoid electrical shock, do not touch any exposed speaker wiring while the amplifier is operating. The external wiring connected to the speaker terminals shall be installed by a qualified person, or ready-made leads or cords of appropriate capacity shall be used.
   As the power output channels on amplifiers produce high voltage, do not connect or disconnect speaker cables when the mains power is on.

3. Radio interference
   A sample of this product has been tested and complies with the limits for the European Electro Magnetic Compatibility
   (EMC) directive. This equipment has also been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference from electrical equipment. This product uses radio frequency energy and if not used or installed in accordance with these operating instructions, may cause interference to other equipment, such as radio receivers.

This Class A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment on and off, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
• Check if the affected unit complies with the EMC limits for immunity, (CE-labeled). If not, address the problem with the manufacturer or supplier. All electrical products sold in the EC must be approved for immunity against electromagnetic fields, high voltage flashes, and radio interference.
• Consult the dealer or an experienced radio/TV technician for help.

Speaker damage
Amplifier apparatus is very powerful and can be potentially dangerous to both loudspeakers and humans alike. Many loudspeakers can be easily damaged or destroyed by overpowering them. Always check the speaker’s continuous and peak power capabilities. Although the amplifiers attenuators can be used to reduce the overall gain, an increase of the input signal can result in full output power, which may cause damage to connected speakers.

Maintenance
For safe and reliable operation, the dust filters on both sides of the front panel, behind the grilles, should be removed and cleaned regularly to ensure maximum airflow through the device.
If the dust filters are not maintained there will be safety risks; for example, high internal temperatures could ignite the dust and start a fire. There is also a risk that the unit will malfunction since it is dependent on constant airflow from front to rear. If the dust filters are not clean and the unit malfunctions, any resulting problems will not be covered by the warranty.

Introduction

Welcome
Thank you for choosing the Lab.gruppen D Series for your sound reinforcement needs. We are confident that you will be pleased with the performance, unique features, configuration flexibility, reliability, and long–term durability offered by this product.
For fast installation and use of this product, your welcome package includes a printed copy of the D Series Quick Start Guide (QSG). It provides a brief introduction to the features and functionality of the D Series and it also contains the information required to safely install the product and place it in service. Please read through the QSG thoroughly to become acquainted with the basic configuration and control options available. It is recommended that you also review all other product documentation to ensure familiarity with the various configuration and control options.
Thank you again for placing your confidence in Lab.gruppen products.

D Series: Two versions available
D Series is an advanced, high–power installation amplifier platform designed for demanding applications, primarily in performance venues. For the utmost flexibility in processing and networking, the D Series is available in two versions: the Lake version, with a full slate of Lake processing algorithms and Dante networking; and the Tesira by Biamp version for full integration in a Tesira system and with Ethernet AVB audio transport. D-series Tesira versions are available in three output power levels, whereas the D-series lake versions are available in six output models. The six Lake power output models come in two form factors. Three high power models in a standard form factor and three lower powered models in a slimline, single rack unit, form factor.
This operation manual is for use with Lake processing versions only, and applies to models at all six output power levels.

The models D 200:4L, D 120:4L, D 80:4L, D 40:4L, D 20:4L and D 10:4L will further on only be referred to as D200, D120, D80, D40, D20 and D10.

Feature summary

Features common to both D Series variants

• Four channels with six levels of total available frame power output: 20000 W, 12000 W, 8000 W, 4000 W, 2000 W and 1000 W
• Rational Power Management (RPM)
• True flexibility in allocating power output across each channel to match requirements, for more efficient use of amplifier inventory
• Any channel is capable of being significantly scaled up to match power requirements.
• Dedicated on–board surveillance and load monitoring for voice alarm applications
• Advanced universal power supply
• Regulated Switch–Mode Power Supply (R.SMPS™) maintains stability through fluctuations in mains voltage
• Best–in–class Power Factor Correction (PFC)
• Current Draw Modeling (CDM™) reduces peak mains draw
• Breaker Emulation Limiter (BEL™) responds to available mains distribution
• Under–Voltage Limiting (UVL™) allows continued operation through mains voltage drop
• CAFÉ (Configuring Amplifiers For the Environment) software incorporates ESP™ (Equipment Specification Predictor) to assist in design, equipment specification and commissioning
• Features controlled by on–board DSP
• Amplifier gain is set in the digital domain and controlled via the Lake Controller software.
• ISVPL™ – The Inter–Sample Voltage Peak Limiter (ISVPL) tailors each channel’s power output to the characteristics of the connected load
• Load Verification & Performance Monitoring – A comprehensive set of proprietary DSP–based tools enables load verification and real–time performance monitoring

NOTE: The D200, D120 and D80 models have the possibility to bridge two power outputs to further increase scalability. This feature is not available on the D40, D20 and D10 models.

Features unique to Lake variant

• Lake’s exclusive classic/linear–phase/FIR speaker processing platform with four throughputs
• Group control with Raised Cosine™ MESA EQ™ asymmetric filters
• LimiterMax™ peak and RMS limiters
• Extensive loudspeaker preset database (Lake LoadLibrary™)
• Comprehensive clocking management system with low latency sample rate conversion
• Full support for Dante Controller
• Multiple and redundant inputs with programmable failover
• Four “Lake Class” analog inputs with Iso–Float™ ground isolation
• Two AES3 digital inputs (4 audio channels)
• Eight dual–redundant Dante network audio inputs
• Comprehensive 3rd party protocol for integration potential with third party matrix systems via purpose–developed middleware

Other Documentation
This Operation Manual is intended to serve as a guide and reference to the operation and maintenance of the D Series Lake hardware platform. Comprehensive information is given regarding installation, connection and operation of the front panel interface.
D Series Lake amplifiers are designed for configuration and operation using the Lake Controller and CAFÉ software programs. This manual includes a brief tutorial on how to put an amplifier into service using Lake Controller, and it also includes an overview of some features that are implemented via CAFÉ.
For complete information on DSP configuration and operation using Lake Controller, please refer to the Lake Controller Manual, available online at www.labgruppen.com/support.
For detailed information on configuration and operation of the power platform using CAFÉ, please refer to the guide embedded in the software or to the CAFÉ Coach video series available on the Lab.gruppen YouTube channel or via a link on the Lab.gruppen web site.

Installation

Unpacking
Carefully open the shipping carton and check for any damage to the device or the supplied accessories. Every Lab.gruppen product is tested and inspected before leaving the factory and should arrive in perfect condition. If any damage is discovered, please notify the shipping company immediately. Only the consignee may initiate a claim with the carrier or their insurers for damage incurred during shipping. Save the carton and packing materials for the carrier’s inspection.

Included in the box
In addition to the D Series device, the shipping carton includes the following items:

• D Series Lake Quick Start Guide
• AC mains lead (power cable) with Neutrik powerCON connector (D200, D120 and D80) or IEC connector (D40, D20 and D10) and AC socket plug according to ordering selection
• Rear brackets for additional rear rack support (pair) along with associated mounting hardware
• Connector kit including all needed connectors
• Front grille and dust filter assembly

NOTE: Depending on the model, the connector kit might include more connectors than applicable for the product you have. Select those connectors required for your unit and application.

Please keep the original carton and associated packaging to facilitate shipping of the device should the need arise.

Mounting
D Series is made for mounting in 19 inch racks. Four screw holes are available for attachment of the amplifier to the racks front rack rail. This device has no top or bottom vents; therefore, units may be stacked directly on top of one another. Sufficient space should be available at the rear to accommodate connectors and cables. In addition, allowance must be made for cable or loom bends within a rack.

Rear Mounting
Two rear support brackets, along with associated mounting hardware, are included with the D Series device. It is strongly recommended that these are used wherever possible. Fit the brackets to the vertical rails at the rear of the rack. The following diagrams show the fitting options for fixed and removable installation. The support brackets are reversible and may be fitted to point either to the front or rear of the rack; the proper orientation depends on the rack depth and position of the rear rack rails.

Mounting front grille
The front grille is shipped on top of the amplifier inside the box to protect it during shipping. The front grille adheres to the amplifier with magnets. Hold the front grille with your fingers in each of the side cutouts and slide it gently into place straight from the front.

NOTE: Always ensure the dust filters behind the detachable front panel are clean to ensure maximum possible airflow. The exterior front panel is held in place by powerful magnets but is easy to detach by using your fingers in the openings at the each side. To clean the foam filter, detach it from the exterior front and gently use a vacuum cleaner or gently shake it. Remount with the opposite procedure. Never operate the amplifier without the dust filter installed.

Cooling and fan operation

D Series devices use a forced–air cooling system with airflow from front to rear, allowing high continuous power levels without thermal problems. To facilitate maximum air flow, ensure that no objects such as rack doors or lids are placed at the front or rear of the rack. Never attempt to reverse the airflow. Make sure an adequate air supply is provided in front of the D Series device, and that the rear of the device has sufficient space to allow air to escape. It is recommended to keep the ambient temperature around the device as cool as possible. An increased temperature can have a significant negative impact on the expected lifetime on the components inside the D Series device.

NOTE: Fit solid blanks (not ventilation blanks) to unused rack spaces to ensure effective air circulation. Leaving gaps in between items of equipment degrades the effectiveness of forced–air cooling.
If installing one or more D Series devices in a rack with other fan–cooled equipment, confirm that all other equipment also uses front–to–rear airflow for cooling. If this precaution is not observed, there is a risk of overheating, as units with the reverse airflow will be drawing in air which has already been heated by the D Series devices.
The D Series device is equipped with a sophisticated temperature sensing system which protects it from any overheating which may occur as a result of inadequate ventilation.

Operating voltage
D Series has a universal power supply and its mains nominal and operating voltages are specified in the Technical Specifications. D Series can be ordered with a variety of mains plugs. If the mains plug (AC plug) fitted to the mains cable (AC cord) is not appropriate for your country it can be removed and a locally–sourced one fitted instead. If you are not 100% confident of your competence to replace the mains plug (AC plug), the task should be carried out by qualified personnel.

NOTE: In–rush current is controlled and limited during the soft–start sequence. This enables multiple D Series Devices on the same AC mains circuit to be turned on simultaneously.

Low voltage country considerations
Although the D Series has a wide range of operating mains voltage, some considerations can be applicable for low voltage regions. D Series performs well throughout the specified nominal voltage range but has slightly better efficiency at higher voltages. For regions with nominal voltage below 140 V, one could consider connecting the amplifier in a three phase delta or two phase split-phase configuration, especially applicable for the bigger models, (D200, D120 and D80).

NOTE: Following connections applicable only for resulting voltage inside the amplifiers nominal voltage range.

Connecting the amplifier in three phase delta configuration
In three–phase configuration where the phases are 120 degrees apart, one can connect three balanced loads in a delta configuration. The connection is made between the phases instead of between the neutral and a phase.

Connecting the amplifier in a split phase configuration
In two phase split–phase configuration there are two phases separated by 180 degrees. Connecting between the phases gives double the line voltage.

Grounding

D Series must be grounded (earthed) with the safety ground pin to the mains distribution system. NEVER disconnect the earth (ground) pin on the mains cable (AC power cord). Use correctly-shielded balanced audio input connections to minimize hum and interference.

Product Overview

Front panel

The front panel consists of an outer front with air intake and a centered user interface. The user interface has LEDs for monitoring and six recessed touch buttons for control.

1. Rack ears for 19 inch rack mount
2. Exterior front grille (also air intake and dust filter holder)
3. Touch and LED panel – See section 9.1 for further information.

Rear panel

1. Amplifier Outputs – The amplifier output connectors are sturdy terminal block connectors. See Technical Specifications (Section 15) for connector rating. Channels are located from left to right. Each channel has a clearly marked hot (+) and cold (-) terminal
2. Analog Inputs – Analog inputs are available on terminal block connectors with clearly marked hot (+), cold (-) and ground terminals
3. AES3 Inputs – AES3 inputs are available on terminal block connectors with clearly marked hot (+), cold (-) and ground terminals
4. RJ-45 Ethernet connectors for control and Dante digital audio network
5. Mains connector – Detachable Neutrik powerCON (for D 200, D 120 and D 80) or locking IEC connector (for D 40, D 20 and D 10). See Technical Specifications (Section 15) for connector rating

Signal flow, routing and mute points

Signal flow
The figure below depicts the audio signal flow for a D Series Lake device. It is worth noting that this sophisticated device provides seven points in the signal chain where the signal level can be adjusted, muted or disconnected.

1. The input section (inputs, input router and input mixer) allows for mixing capabilities as well as redundant and prioritized inputs with automatic switch-over in case of signal failure
2. Up to four Lake Processing modules provide user EQ and loudspeaker processing, including LimiterMax limiting
3. The Output router allows free routing between module outputs and power output channels
4. Each power output channel provides individual channel processing, including ISVPL limiter, RPM and load monitoring
5. Power amplifier

Level Adjustments & Mute Points
The following points in the signal flow can adjust level or mute the signal:

1. Input Router Stage  Input selection and MUTE
2. Input Mixer Stage  Router on /off connection to mixer and gain settings
3. Module Input Stage  Mute and gain settings
4. Module Output Stage  Mute and gain settings
5. Output Router Stage  Output on /off routing connections
6. Attenuation Stage  Power output channel mute and attenuation settings
7. Amp Gain Stage   Amplifier gain control
   NOTE: If the required audio signal is not passing correctly, verify the connection, mute and gain settings at all seven stages.

Front panel interface

Frame status and control

NOTE: General status indication shown in Table 9.1. For detailed information on warning and fault indication, please refer to the Faults and Warnings table in Section 14.1.

1. FRAME LED – Provides status indication for a number functions affecting the amplifier frame
2. TEMP LED – Provides status indication for internal temperatures sensed at multiple points, including power supply, DSP and output channels
3. PSU LED – Provides status indication on functionality of Power Supply Unit and mains supply, including under– and over–voltage, power supply faults, and unstable mains supply
4. POWER LED and TOUCH BUTTON – Provides power state indication and control. Press and hold button to toggle the amplifier between ON and STANDBY state. LED indication given in Table 9.1.

Channel status and control
© LOAD LED – Provides load related status indication for monitoring functionality of LoadSmart and LoadPilot.

Warnings and faults indicate problems or anomalies detected in the connected loudspeakers and/or cabling

• AMP LED – Provides amplifier related status indication, including faults and warnings related to temperature, over-current, clipping and very high frequency

• SIGNAL LED – Provides signal related status indication, including no signal and input signal clipping ® MUTE LED and TOUCH BUTTON – Provides mute status indication and control. The LED is indicating
  both Lake mutes and power channel mute. A single touch on the mute button toggles the power channel mute between mute and unmuted states

• SELECT LED and TOUCH BUTTON – for selection and indication control between computer software and unit

Table 9.1: LED/category chart

| OFF| Green| Amber| Red
---|---|---|---|---

Frame

|

N/A

|

Frame OK

|

Frame warning

|

Frame fault

Temp

|

N/A

|

Temp OK

|

Temp warning

|

Temp fault

PSU

|

N/A

|

PSU OK

|

Power supply/ Mains warning

|

Power supply/ Mains fault

Power

|

No mains power

|

Fixed:ON Blinking: Turning ON

|

Button pressed. Hold for transition

| Fixed: STANDBY Blinking: Turning to STANDBY

Load

|

No LoadPilot active

|

LoadPilot active and LoadOK

|

Load warning

|

Load fault

Amp

|

N/A

|

Power channel OK

|

Power channel warning

|

Power channel fault

Signal

|

Output below signal present threshold (–60 dB)

|

Output above signal present threshold (–60 dB)

|

Input signal approaching input clip (–2 dB)

|

Input signal clip or limit/fault active

Mute

|

Inactive channel in bridge operation

|

Unmuted

|

Lake module is muting the signal chain at either input router, module input or module output

|

Power channel muted

Select

|

Frame not selected

|

Frame selected

|

Waiting for more touches

|

N/A

Frame select and ID

• SELECT LED and TOUCH BUTTON – Selects mode and indicates control between computer software and unit. A single touch on the button will select the unit in supported computer software views. Multiple consecutive touches will select the corresponding Lake module (one touch for module A, 2 for module B etc.). In the other direction, when selecting the unit in a supported computer software view, the LED will indicate the unit is selected with steady green illumination.

NOTE: The touch buttons use capacitive touch technology and might be sensitive to large temperature and humidity variations.

Additional front panel operations and indications

Frame reset
A factory reset and soft reset can be performed from the front panel. A factory reset will restore all settings to original defaults, including network settings, frame presets and current settings. A soft reset reverts only the current settings to default. Network settings and frame presets are not changed with a soft reset.

1. Place the frame in standby mode.
2. Press and hold Select and channel 3 mute button. Then press the power button.
3. User interface will illuminate available options. Choose from the options below
   • Press channel 1 mute button (red LED) to initiate the factory reset sequence.
   • Press channel 2 mute button (amber LED) to initiate the soft reset sequence.
   • To cancel, press channel 4 mute button (green LED).
4. Wait state indication is present while either reset is performed.
5. To complete the factory reset process, cycle the mains power by completely removing the power plug and reinserting it.

Wait indication
Wait indication is displayed when the frame is performing an operation. All LEDs except power are unlit and a circling amber light is displayed on channels 1 and 2.

Power cycle required indication
After an operation that requires a subsequent power cycle to complete, the power LED blinks alternately red and green. A Power cycle requires that the mains is completely removed from the device and not connected again until the device has powered off.

Front panel lock
The front panel can be disabled from the Lake Controller. When the front panel is disabled, LEDs 4, 8 and 9 (all buttons on the lowest row) flash in amber when hitting any touch button.

Rear panel interface

For electrical specifications on inputs and outputs, please refer to Technical Specifications in Section 15.

• Amplifier Outputs – The amplifier outputs utilize mating Phoenix-type connectors. Connect loudspeaker cables to the mating plug-in connectors observing polarity induding bridge mode option for D200, D120 and D80) as marked on the rear panel 2 Analog Inputs – Analog inputs are available on terminal block connectors with clearly marked hot (+), cold (-) and ground terminals. The inputs are electronically balanced and feature Lake Iso-Float circuitry
• AES3 Inputs – AES3 inputs are available on terminal block connectors with clearly marked hot (+), cold (-) and ground terminals
• RJ-45 Ethernet connectors for control and Dante digital audio network. Neutrik etherCON connectors accept either mating etherCON connector or a standard RJ-45 connector.

Primary Network Connector – The primary connection provides integration into an Ethernet control network which may include other Lake Processors and the Lake Controller software. Network connection permits full control of all functions along with real time metering from a remote position.
This device supports the Dante audio networking protocol, which allows transmission of multichannel, high-definition digital audio over the same Ethernet connection.
Use the primary connector when using a star network topology, consisting of individual Cat-5e connections between the devices and an Ethernet switch. Alternatively this connection can be used to daisy chain directly to another Lake Processor. The daisy chain topology should not be used with Dante.
Additional information is also available in the Lake Network Configuration Guide.

NOTE: The Ethernet ports operate at the Ethernet data rate of up to 1 Gbps and allow straight or crossed network cables. LEDs above each port indicate network activity (ACT) and Gigabit network connections (Gbps). If Gbps LED is unlit, speed is 100 Mbps.

Secondary Connector – The secondary network connector can be used to create a Dante dual-network topology by connecting all secondary network connectors to a separate Ethernet switch, ensuring full redundancy in the event of a network component failure. Alternatively, the secondary network connector can be used to daisy-chain multiple Lake devices (LM, PLM, PLM+ or D Series), if Dual Redundancy is Disabled from the Lake Controller. When the device is in Dual Redundancy, it is possible to connect a Lake Controller to the Secondary Connector as long as the IP address on the computer is on the 172.31..x subnet.

NOTE: Additional processor configuration is required for daisy-chain network set-up. The device may be configured via Lake Controller. See the Lake Controller Operation Manual for further details.

NOTE: When connecting multiple devices to an Ethernet network, care must be taken NOT to create a closed loop which causes network malfunction.
Mains connector – Detachable Neutrik powerCON (for D 200/120/80) or locking IEC connector (D 40/20/10).

For more information, please refer to Section 6.4.

Operation and performance

Operation precautions
Make sure that the Standby button on the unit’s front panel is either unlit (OFF), or red (STANDBY), before making any input or output connections. Ensure the AC voltage is within the range printed on the label adjacent to the AC mains connector. Ensure no input signal is present when powering on the unit to reduce the risk of any inadvertent bursts of high level audio.

Power output performance
The standard form factor D Series units (D200, D120 and D80) uses Lab.gruppen’s patented Class TD technology (Tracking Class D) in the output stages, which couples the efficiency of Class D topologies to the sonic purity of Class A/B designs. The slimline D Series units (D40,:D20 and D10) uses a newly developed Class D technology design with increased efficiency and sustained sonic performance. All D Series models works
perfectly under all load conditions and the output maintains its flat frequency response even into complex loads with very low nominal impedances. Reliability is very high, and there is no interference with nearby RF equipment.
The superior efficiency of all D Series amplifiers allows for great power density with minimized cooling requirements.

Symmetrical power
D Series models can deliver power as shown in Table 11.1 when all channels are driven equally.

Table 11.1: Symmetrical Load Power Ratings

Load Impedance (ohms)| 2 ohms

(per  channel)

| 2.67 ohms

(per channel)

| 4 ohms

(per  channel)

| 8 ohms

(per  channel)

| 16 ohms

(per  channel)

| Hi-Z 70 V

(per  channel)

| Hi-Z 100 V

(per channel)

---|---|---|---|---|---|---|---

D 200:4L

|

4400 W

|

5000 W

|

4400 W

|

2300 W

|

1150 W

|

3300 W

|

4700 W

D 120:4L

|

3000 W

|

3000 W

|

3000 W

|

1900 W

|

950 W

|

3000 W

|

3000 W

D 80:4L

|

2000 W

|

2000 W

|

2000 W

|

1500 W

|

750 W

|

2000 W

|

2000 W

D 40:4L

|

800 W

|

1000 W

|

1000 W

|

1000 W

|

700 W

|

1000 W

|

1000 W

D 20:4L

|

500 W

|

500 W

|

500 W

|

500 W

|

425 W

|

500 W

|

250 W

D 10:4L

|

250 W

|

250 W

|

250 W

|

250 W

|

250 W

|

250 W

|

175 W

Rational Power Management™
Rational Power Management™ (RPM) is a unique Lab.gruppen feature that allows for flexible allocation of power across channels of a D Series unit. Power that is not used by one output channel is free for use by another output channel with greater demands. Unique to this series is that all models in the range have amplifier channels that can produce higher outputs than the average 25% of the total power, see the Technical Specifications for the maximum single channel power capacity. RPM automatically allocates power up to the total limits of the specific amplifier model and helps minimize unused power in the installation.
Via the CAFÉ Software, desireded power can be specified in several domains: burst and peak power; peak and RMS voltage; and also the speaker’s AES power rating. By specifying the nominal impedance of the load, the RPM algorithms have all input data required to calculate resulting RPM settings. If the desired RPM settings results in a total power output higher than the capabilities of the amplifier, RPM will reduce the actual RPM configuration evenly based on a proportional reduction in dB. Once applied, the RPM functionality will ensure that all channels are capable of delivering the specified power, and limits efforts to take out more than the designed maximum power. The limitation, if needed, is performed with the ISVPL limiter algorithm. As default the RPM configuration allocates the power equally cross the channels at a voltage (default voltage limitation) given in the Technical Specifications. RPM can be configured in two modes.

Auto RPM: The frame will automatically allocate power per output channel according to the ISVPL settings in the speaker preset (per module output) in Lake Controller. Auto RPM assumes a nominal impedance of the Load and applies an approximate power allocation. Auto RPM is default for D Series Lake.

Custom RPM: The CAFÉ software allows users to create an advanced custom power allocation scheme.
Switching to Custom mode disables the Automatic mode. Additional information is available in documentation supplied with the CAFE software download.
Custom RPM using CAFÈ with ESP: CAFÉ (Configuring Amplifiers For the Environment) is a dedicated software application for Windows and OS that provides tools for system planning, specification and commissioning. CAFÉ incorporates the Equipment Specification Predictor (ESP), a software module that examines SPL and speaker requirements for a project and generates requirements for output power on an amplifier and system level. ESP will generate a custom RPM configuration optimizing the power allocation within the frame. For more information on CAFÉ and ESP, please consult the documentation supplied with the CAFÉ software download.

Amplifier and Load Protection Systems
The D Series is equipped with a comprehensive set of protection circuits. If operating conditions become sufficiently extreme that any of these circuits become active, indication is provided by amber or red LEDs on the front panel, and by text notifications in the Lake Controller and CAFÉ software. Refer to Section 14.1 for more information on warnings and faults.

Inter-Sample Voltage Peak Limiter (ISVPL)
The ISVPL is a high quality voltage limiter that can deliver seamless limitation to any desired level. It ensures that the voltage at the output terminals never exceeds the defined threshold. It operates on these principles:

• The signal is delayed slightly to allow the ISVPL to look-ahead and reduce the gain before voltage in excess of the threshold can appear at the output. This results in zero voltage overshoot at the output with a rounded limitation up to the threshold.
• The amplitude of the output signal between digital samples is predicted which permits the ISVPL to respond to analog peaks that may occur at the digital to analog converter.
• The release time of gain reduction is adaptive depending on the dynamics of the signal. It is possible to select different ISVPL profiles for limiting optimization for a specific frequency band and personal preference. The profiles are divided into two categories, with one category optimized for low distortion and the other focusing on producing high sound pressure level (SPL). Within each category there are profiles optimized for the different frequency bands.

Low Distortion Profiles

• Universal – The universal profile is a soft limiter that can be used for all frequencies and is conservative in its action upon VCL and CPL.
• Sub/LF – The Sub/LF profile is tuned for frequency bands below 600 Hz. It has longer attack and release times and is less conservative when it comes to acting upon VCL and CPL.

High SPL Profiles
High SPL profiles do not use the adaptive release time feature. High SPL profiles optimized for high frequencies use less of the look-ahead delay peak- rounding feature; this feature is used most in the Sub profile and least the HF profile.

• Sub – The Sub profile is optimized for frequencies between 20 – 200 Hz
• LF – The LF profile is optimized for frequencies between 20 – 1200 Hz
• MF – The MF profile is optimized for frequencies between 300 – 6000 Hz
• HF – The HF profile is optimized for frequencies above 1 kHz

ISVPL Voltage Settings

The ISVPL threshold may be set at any level between 17.8 V and 600 V in the Lake Controller software. For further details, please refer to the Lake Controller User Manual.
Lake enabled amplifier devices (D Series Lake, PLM+, PLM) that have a smaller peak output voltage capability still allow ISVPL speaker threshold settings up to 600 V. When a threshold is set above the current maximum capability of a power output channel, the actual ISVPL will automatically be set to the maximum ISVPL for that channel.

Therefore, the ISVPL threshold can be set at the Module for the speaker’s maximum capability, and the Module file remains cross-compatible with all Lake enabled amplifier devices.
Table 11.3 shows the theoretical maximum output power based on only the load impedance and the ISVPL setting. See the Technical Specifications, or use CAFÉ, to find the available power for a specific amplifier and load.

Table 11.3: ISVPL-to-output examples

Max. Sinewave Burst Power (Watts)

Current Peak Limiter (CPL)

The output Current Peak Limiter (CPL) ensures that the power output section will not be damaged by forcing it to deliver current levels at the outputs that exceed the maximum current ratings of the output transistors. The CPL keeps the output transistors within their Safe Operating Area (SOA). The CPL is non-adjustable.
This condition indicates an attempt to draw excessive current at the output. The output is attenuated until the output current falls below the maximum current rating. Limiting is performed by the ISVPL limiter in conjunction with the selected ISVPL profile.
CPL activity is shown by amber or red indication on Amp LED of the affected output channel and a corresponding
text description in Lake Controller and CAFÉ software programs. Refer to Section 14.1 for more information on
warnings and faults.

NOTE: If excessive current is indicated, check the output cables and examine the loudspeaker. If impedance appears normal, you may rectify the condition by altering the ISVPL settings or lowering input levels. CPL indication can be triggered by excessively low load impedance, possibly the result of too many loudspeaker cabinets connected in parallel.

Power Average Limiter (PAL)
The Power Average Limiter Active warning (PAL Active) will be displayed when the power supply is operating at the maximum average input power allowed for the PSU design. When this warning is displayed, gain limiting is being applied to the signal by a lowering of the ISVPL threshold.

PAL activity is shown by PSU amber LED indication and a corresponding text description in Lake Controller and CAFE software programs. Refer to Section 14.1 for more information on warnings and faults.

Breaker Emulation Limiter (BEL™)
D Series amplifiers are powerful devices that can draw a considerable amount of current from the mains supply.
The BEL models the temperature in the external breaker and limits the mains current to prevent the breaker from tripping. On all D Series models the BEL can be configured with both a breaker profile and a nominal current value (the D 20:4L and D 10:4L models can only apply the Universal profile, but supports the others to be selected for Frame Replace support). The desired nominal current value can be set from 1 to 32 Arms. The resulting actual current value is model limited; according to the Technical Specifications. When the nominal models current is set above, or bellow, the model’s capabilities, the actual current is automatically adjusted into the specified range. Therefore, the nominal current can be set for the application and the configuration remains
cross-compatible with all the models. The three different profiles available for selection are:
: Cost- The vast prole models the time constant of the tin- cure come spond ting to a fast o taker. momentarily allows current above the threshold to pass for a short time, leading to an increased modeled temperature. For the limiter to disengage, the current must reduce below the threshold to enable the breaker to cool down.

• Universal – The universal profile models the time constant of the trip-curve corresponding to a slow breaker. It momentarily allows current above the threshold for a longer time, leading to an increased modeled temperature.
  For the limiter to disengage, the current has to reduce below the configured current for the breaker to cool down.
  The BEL is configured manually with the Lake Controller and CAFÉ software. CAFÉs ESP design aid can also predict the current consumption, with the exact speaker requirements, and propose a safeguarding BEL configuration.

Under Voltage Limiter (UVL”)

The larger D Series devices (not D 20:4L and D 10:4L) are equipped with an under voltage limiter. With multiple,powerful devices on a mains distribution line, heavy current loads risk the reduction of voltage below that required for devices to function. The UVL reduces the mains current draw when voltage drops below 80 V.
The amount of reduction applied increases as mains voltage drops towards 65 V; at 65 V the power supply is shut down. The mains supply is continually monitored and when sufficient voltage returns the power supply automatically restarts.

Current Average Limiter (CAL”)
The Current Average Limiter (CAL) monitors the RMS current drawn from each power output channel to ensure that the power output stages are not overloaded. When activated, it regulates the current to a sate level to protect the channel. The CAL should not be activated in normal usage. If activated, this is shown by amber or red indication on the Amp LED of the affected output channel and a corresponding text description in Lake Controller and CAFE software programs. Refer to Section 14.1 for more information on warnings and faults

NOTE: For Slimeline models, to optimize the CAL’s behavior when playing into a low impedance load, manually set the desired ISVPL to reflect the real peak voltage output to allow for a higher average current.

Voltage Clip Limiter (VCL)
If current draw from the unit’s power supply is too high, the PSU’s regulation capability may be exceeded and the internal voltage rails may drop and cause clipping. If this occurs, the VCL acts rapidly to prevent clipping on the subsequent peaks. Limiting is performed by the ISVPL limiter in conjunction with the selected ISVPL profile.
Indication of this condition is shown on the output LEDs. Refer to Section 14.1 for more information on warnings and faults.

Temperature Protection
D Series devices are equipped with a sophisticated temperature sensing system that provides protection from overheating which may occur as a result of inadequate ventilation or excessive power output. Thermal measurements are made at several points within each power output channel along with measurements in the power supply and DSP areas. The temperature protection scheme is designed to let the amplifier to operate continuously, with the highest possible output, and prevent shutting down. If temperature in any area reaches a critical level, a warning is displayed. The warning is issued at approximately 80% of the maximum allowable temperature. If the temperature continues to increase, a limiter (ATL or PTL) is engaged that limits signal
peaks to reduce further heat accumulation. Limiting is accomplished by gradual reduction of the ISVPL thresholds.
In the extreme case where the limiter cannot reduce heat accumulation and temperature reaches a dangerous level, a fault is displayed and audio is muted.
Each power output channel, the power supply, and DSP area have separate indications. For all temperature faults, temperature monitoring will continue at 0.5 second intervals, with the output remaining muted. When the area has cooled below the dangerous threshold, the fault condition is cleared and audio is restored.

Power Output Channels
A power output channel temperature warning or fault is indicated by the Amp LED for that channel and the Temp LED for the frame.

• A warning is indicated by a static amber LED
• Amplifier Temperature Limit (ATL) is indicated by an amber LED
• A fault is indicated with a static red LED
  An event report is sent to the Lake Controller software for both the warning and the fault. If a temperature fault condition arises on a power channel, the output of that channel will be muted.

If the amplifier output channel temperature keeps rising after reaching the temperature warning threshold, the Amp channel Temperature Limiter (ATL) will engage at approximately 95% of the maximum allowable temperature.
When ATL is engaged, it will try to reduce the power output to avoid that the amp channel goes into temp fault,i.e. muting. Limiting is removed when temperature falls below the ATL threshold.

Power Supply / DSP
A power supply (PSU) or DSP temperature warning or fault is indicated by the Temp LED.

• A warning is indicated by static amber LEDs
• Power supply Temperature Limit (PTL) is indicated by an amber LED
• A fault is indicated with static red LEDs

If the power supply temperature keeps rising after reaching the temperature warning threshold, the Power supply Temperature Limiter (PTL) will engage at approximately 95% of the maximum allowable temperature. When PTL is engaged, it will try to reduce the total amplifier output power to avoid that the power supply goes into temp fault,i.e. muting of all channels. Limiting is removed when the temperature falls below the PTL threshold.

DC Protection
The DC protection is implemented, individually, on each power output to prevent damage to connected loudspeakers or any D Series components. DC present at the output will cause the unit’s power output module breaker to blow, causing a permanent hardware fault that prevents signal throughput. In this instance the channel’s Amp LED will illuminate red and a service channel fault will be registered in the Lake Controller and CAFÉ status views (D200, D120, D80 only). For the D40, D20 and D10, no audio will be heard from the outputs.

NOTE: A blown breaker in the power output module is not a user serviceable fault condition and the unit should be returned for repair.

VHF Protection

The D Series includes protection circuits that detect Very High Frequency (VHF) content in the input signal. The detection is amplitude, frequency- and time- dependent. It is initiated from 10 kHz upwards and, if continuous VHF signals are detected above the threshold for more than the attack time, the output for a D200, D120 and D80 will attenuate the gain until the signal is below the VHF threshold. When this is done, VHF Warning is displayed. If the signal is above the VHF threshold and the maximum of -12 dB of gain reduction is not enough to take the signal below the VHF threshold, the signal will mute after 15 seconds, and retest the signal after 6 seconds. Note that the D40, D20 and D10 will go directly to mute upon VHF detection. When continuous VHF signal stops, the output unmutes and the amplifier returns to normal operation.
This protection system recognizes only continuous VHF signals at high levels that will not appear in speech or music. Any such content can therefore be considered as a fault condition. VHF protection is essential to avoid damage to HF drivers. VHF protection is dependent on a combination of output power level and frequency.
Figure 11.4 shows a decreasing power threshold, from approximately 10 kHz upwards, which illustrates increasing sensitivity of the protection system with frequency. When continuous output power above the threshold line is
detected, VHF protection becomes active.

The attack time of the VHF protection circuitry also changes with frequency, becoming shorter at higher frequencies. This is shown in Figure 11.5.

The VHF protection circuit does not alter the amplifier’s frequency response. It is implemented solely to detect continuous VHF content. HF content of normal music or speech signals at peak levels will be passed in full.

Operation of the VHF protection circuits is indicated by the channel’s AMP LED that will illuminate yellow and display VHF Warning when the max of -12 dB of gain reduction is applied (only applicable for D200, D120 and D80) and light red for a VHF FAULT. Both of these will be registered in the Lake Controller and CAFÉ status views.

Short Circuit Protection
A low impedance or short circuit at the power output terminals is detected when the output current is high (Current Peak Limiter is active) and, simultaneously, the peak output voltage is below a predetermined threshold. When this situation occurs, the output stage is muted to protect it from damage.
Operation of the short circuit protection system is indicated by Amp channel LED showing steady red and a corresponding text description will register in Lake Controller and CAFÉ software programs. Refer to Section 14.1 for more information on warnings and faults.

The presence of a short circuit (or low impedance) is re-tested every six seconds, and the output remains muted until the fault clears.

Power supply protection
The power supply is very advanced and has several internal control and monitoring functions. Should any of these fail, the power supply will shut down to prevent damage or limit severity of the failure. If the power supply shuts down audio will be muted. Power supply faults, or power supply needs service faults, are indicated by a red LED and associated error messages registered in Lake Controller and CAFE software programs.
In the extreme event of simultaneous low mains voltage supply and high power demand, the amount of incoming energy may not be sufficient for continued operation. The power supply will then be forced to shut down. This condition is a power protect fault, indicated with a red LED and associated error messages registered in Lake Controller and CAFÉ software programs.

Mains anomaly protection
D Series amplifiers incorporate several features to ensure continuous operation in case of irregularities in the AC mains service.
Over-voltage – If the power supply detects mains voltage above 400 V peak or 270 V RMS, it will enter protective shut down mode. The amplifier will auto- restart if the condition clears. Will be indicated by a red LED and associated error messages will register in Lake Controller and CAFE software programs.
Under-voltage – If the power supply detects mains voltage of less than 65 V (not available on D10 and D20), it will enter protective shut down mode. The amplifier will auto-restart if the condition clears. Will be indicated by a red LED and associated error messages will register in Lake Controller and CAFÉ software programs.
Mains instability – If the power supply detects protracted instability in the AC mains, it will enter protective shut down mode (D 200:4L, D 120:4L and D 80:4L only). The amplifier will auto-restart if the condition clears.
Will be indicated by a red LED and associated error messages will register in Lake Controller and CAFE software programs.

Mains glitch – If the power supply detects a momentary mains glitch (missing cycles) at the AC inlet, a warning indication will be reported with a yellow LED and associated error messages will register in Lake Controller and CAFÉ software programs (D 200:4L, D 120:4L and D 80:4L only). The powers supply and product continue operation throughout a mains glitch.

Power Supply

The R.SMPS (Regulated Switch Mode Power Supply) is designed to keep supply voltage rails at optimum levels.
Thus the R.SMPS can deliver full rail voltage to the output stage at all times, allowing the amplifier to exhibit consistent transient response and a clean LF response.

D Series features a universal power supply with power factor correction (PFC). The device can accept any mains voltage, from 65 V to 265 V, allowing it to function worldwide in many different configurations. The PFC reduces current peaks on the lines and reduces the requirements placed on the mains distribution system. D Series units offer an unparalleled power factor extremely close to one.

Low Inrush Current
High power amplifiers with inadequate inrush current limiting can draw considerable current from the mains at turn-on, sometimes tripping a fast- acting mains breaker. The D Series, however, has very low inrush current to prevent tripping of breakers. Several units can, under normal conditions, be powered up simultaneously. If you do experience problems powering up multiple units simultaneously, they must either be turned on manually in an ordered manner, or sequenced remotely using the Lake Controller software’s Global Control feature. Alternatively,the capacity of the mains supply should be increased.

NOTE: If insufficient power is available to allow simultaneous power-up, then there is probably insufficient capacity for full power output during operation. It is recommended that additional capacity is added to the mains power distribution system.

Adaptive rail control
The D Series slimline models have Adaptive rail control available in Performance (default) and Green mode.
In Green mode, this feature further increase the slimline models green credentials by lowering the idle consumption. This is achieved by lowering power supply’s supply voltage, to the amplifier modules,when no signal has been present for a predefined time. The supply voltage is automatically raised,to allow for full power outtake, as soon as the signal returns. This feature is user controlled via the Lake Controller, where it can be turned on or off.

Auto power down
The D Series models have been equipped with a Auto Power Down function. If Auto Power Down is enabled, the D Series amplifier will automatically go into standby mode (after the defined user-defined number of minutes) if there is no audio passing and there is no user interaction via the Lake Controller, CAFÉ or 3rd party controllers.
When the amplifier enters standby mode, it remembers that the expected power state is ON and thereby after a power cycle the frame will turn on again.

NOTE: There is no Auto Power On feature on the return of signal, the device will need to be actively turned on after entering the standby mode via the Auto Power Down feature. This can be done from the network via the Lake Controller or the 3rd party protocol or via the front panel button.

LoadPilot Load Monitoring

1. Introduction
   LoadPilot is a feature in D Series amplifiers that can continually monitor the integrity of loudspeakers and cables connected to the outputs to ensure that they are functioning properly and free from major anomalies or faults.
   By implementing LoadPilot, systems incorporating D Series amplifiers can be certified in compliance with voice evacuation standards such as EN54-16 and NFPA72.
   LoadPilot functions by automatically superimposing low-level pilot tones on the input signal (if any present) to the amplifier. One tone is below the range of human hearing (approximately 10-20 HZ) and the other above (24 kHZ), so the activity of LoadPilot is inaudible regardless of whether the system is currently reproducing program content.
   High-resolution current sensing on the outputs can calculate the impedance of the load at the frequency of the tones. Hence a stable measurement of the impedance of the load can be obtained and potential anomalies or faults can be detected that would indicate impaired loudspeaker function or total inoperability due to failure of the loudspeaker or faults in connected wiring. The superimposition of pilot tones and analysis is interleaved across the amplifier’s output channels with a maximum total cycle time of around 20 seconds.
   LoadPilot is implemented and configured in the CAFÉ software. Monitoring status and fault indication are displayed on the front panel and both in CAFÉ and Lake Controller.
   LoadPilot may be configured with the automatic calibration or through a manual advanced mode, depending on monitoring requirements and characteristics of the connected loudspeaker loads.

2. Automatic calibration

3. Functional description

Automatic calibration is suitable for the following applications and requirements for error detection:

• If one or two low-impedance loudspeakers are connected; if two in parallel is default, it will warn if one is missing.
• If there are one or two “spurs” with 70V loudspeakers connected; if two in parallel is default, it will warn if one is missing.
• If there is a short circuit in the load.
• If there is an open circuit (all loudspeakers missing).
• For passive 2- and 3-way loudspeakers, if one or two LF drivers are connected and working; if two in parallel is default, it will warn if one is missing.
• For some passive 2-way designs, if one HF driver is disconnected. (However, with some loudspeakers the HF impedance is dominated by a passive component i.e. crossover filter and the anomaly will not be detected.)
  NOTE: LoadPilot is enabled only when the amplifier is On. It does not function while the amplifier is in Standby.

Manual configuration

1. Functional description
   Manual configuration can be used in special cases where proper functioning requires setting of custom measurement frequencies, custom measurement levels, custom warning thresholds, or combinations of the three.
   Manual configuration addresses the following issues:
   Speakers with non stable impedance – For the LoadPilot feature to function the load itself needs to have a stable impedance at the frequency of the tone. Resonances in the speaker or other non linear phenomenons can make the impedance at a certain frequency unstable. Stability needs to be verified by examining the impedance response to make sure it is relatively flat at the tone frequencies and by verifying LoadPilot readings when playing signal through the speaker at the most extreme expected level. The frequency of the pilot tones can be changed within certain ranges and a tone can be disabled. If a frequency where the speaker is stable can not be found one tone can be disabled and LoadPilot relies solely on the remaining tone.
   High noise levels – To obtain accurate impedance measurements, it is necessary to drive a current sufficiently above the noise floor. However, it is important to keep the level low in order to prevent audible artifacts from cone travel. At very high impedances, the drive current may be insufficient. In the automatic mode, level is set around 60 mV which produces usable results for impedance up to 660 ohms.

Inductance in loudspeaker cables – Loudspeaker cable inductance at higher frequencies is very high relative to passive resistance, and the inductance increases linearly with length. Consequently, monitoring at the 24 kHz pilot tone frequency can be problematic with very long cables. The automatic mode will estimate cable impedance for 24 kHz and allow it to be used as long as it is less than 33% of total impedance presented by the load and as long as the total impedance is below about 440 ohms.
DC blocking capacitors in loudspeakers – Some loudspeakers incorporate a capacitor designed to block damaging voltages at very low frequencies. This may inhibit accurate measurements when using the 10 Hz pilot tone. In automatic mode, LoadPilot will disable the 10 Hz tone if total impedance is above about 440 ohms.
Constant voltage loudspeakers – Loudspeakers driven via transformers in 70V/100 solutions are more likely to exhibit wide variations in measured impedance as music and/or pilot tones are reproduced by the system. Also, most constant voltage systems operate more than two loudspeakers in parallel. Therefore, in addition to manual configuration of LoadPilot, additional step may be required. These include:

Insertion of a series capacitor in each loudspeaker to block the 10 Hz LF tone – This will defeat measuring the loudspeakers with the LF tone, but will allow the LF tone to propagate through the entire cable run.

• Insertion of EOL (end-of-line) resistors – This enables LoadPilot to detect cable faults in a spur of the system.
  Insertion of EOL (end-of-line) inductor – This is not mandatory, but it will avoid the loss of level at mid and high frequencies due to the EOL resistor.

NOTE: Manual configuration of LoadPilot is implemented in CAFE versions 1.1.0. and later. For detailed information on manual configuration of LoadPilot, please refer to the integrated guide in the software program and to the CAFÉ Coach videos posted on the Lab.gruppen web site and on the Lab.gruppen channel on YouTube.

Indication
The LoadPilot feature constantly monitors the impedances at the two given pilot tone frequencies and compares to the measured thresholds. The following faults and warnings can be triggered.

• Speaker shorted warning – Both tones below lower threshold. Corresponds to a distant short circuit that can either be in the cabling or in the speaker.
• Speaker damaged warning – One of the tones is below or above thresholds. Corresponds to an unexpected impedance deviation of one of the tones, most likely a damage to the speaker.
• Under speaker count warning – Both tones above upper threshold. Corresponds to an impedance increase across the impedance response and most likely a loss of speakers) in a parallel speaker connection.
• No load fault – At least one tone above measurable area or significantly above upper threshold. Most likely corresponding to loss of the load.
• Short circuit fault – LoadPilot analysis below short circuit threshold.

Lake Processing and Lake Controller

Introduction
D Series Lake integrates seamlessly into the Lake Processing environment, providing all features, functionality and connectivity associated with all Lake Processors. The internal Lake Processing, which includes programmable crossovers, EQ, dynamics and other functions, is fully controllable via Lake Controller software with a version number of v6.3 for D 200:4L, D 120:4L and D 80:4L, v6.5.0 for D 20:4L and D 10:4L and v6.5.1 for D 40:4L.
All models are compatible with newer versions of the Lake Controller.
Additional information is available in the Lake Controller Operation Manual and Lake Network Configuration Guide,both available on www.labgruppen.com. Also, additional documentation is available from the Start Menu after software installation.

Lake LoadLibrary™ and Fingerprints
In addition to the standard loudspeaker presets (Module files), the Lake Controller also includes a set of enhanced Module files specifically for use with Lake models. These supplementary Module files, known as SpeakerPresets are available in the Lake LoadLibrary, incorporate both Lake DSP parameters along with amplifier specific data.
LoadLibrary Module files include parameter settings for the Amplifier Gain and ISVPL limiter.
Additionally, Lake LoadLibrary loudspeaker types may also include data relating to the electrical characteristics of a particular loudspeaker. Electrical characteristic data is used to enable load verification (LoadSmart) to be performed on the device. This data set is termed a Fingerprint. When a specific loudspeaker type is loaded, its Fingerprint load characteristics are included. These load characteristics are stored in a file with a “.mdl” suffix and are loaded simultaneously with the module file.

Loudspeaker Processor Overview
The Lake Processing system within D Series Lake devices may be configured with up to four processing Modules containing a total of up to twelve processing Module outputs that can be routed to any of the four power output channels. Each set of processing elements is referred to as a Module and can be configured as crossovers, full bandwidth auxiliary outputs, or a combination of the two. The relationship between inputs and outputs is defined via the Lake Controller.

The Lake Processing system provides two distinct categories of crossovers:

• Infinite Impulse Response filters (IIR) such as the classic Bessel, Butterworth or Linkwitz-Riley types; these are available with slopes ranging from 6 dB/octave to 48 dB/octave.
• Finite Impulse Response filters (FIR) providing zero phase shift with steep transition slopes at the crossover frequencies. These are also referred to as Linear Phase Crossovers.

Module, System and Sub-System Configuration
Files Module, System and Sub-System Configuration files are stored on the Lake Controller PC, and data is passed across the network when recalling or storing these types of files.See Figure 8.1 where Module data is highlighted in Red and Frame data in Blue.

• A Module file is the smallest set of data that can be stored and recalled; it contains crossover, gain, delay, and limiter information for an individual loudspeaker. A Module file may be recalled into other Lake devices. It is not possible to store a Module File directly on the hardware device.
• A System or Sub-System Configuration File contains a set of Module file information in addition to Frame related information such Group data and I/O configuration.

Frame and System Presets
The entire processor configuration can be stored as a Frame Preset on this hardware device. Presets can be recalled) via the Lake Controller software or Preset Manager utility; presets can be stored using the Lake Controller software or Preset Manager utility. A maximum of 100 Frame Presets can be stored on this device. The data within a Frame Preset encompasses the configurations of all Modules in the Frame, including levels, crossover, EQ, input mixer, routing, and all other parameters. As Frame Presets are stored in the hardware device, recall is available without using a PC.

Using the System Presets function in the Lake Controller, entire system configurations can be stored and recalled across a network of Lake devices, including D Series Lake, LM, PLM and PLM+ Series devices. This enables fast retrieval and switching of entire system configurations as minimal data is being sent between the Controller and Processors.

System configuration tutorial

This section will describe how to get started with associated software and set up a basic system for operation.

1. Network setup

2. Network connections/topology
   Each frame has two network ports; a primary and a secondary. See the below diagram for a typical network topology using the primary ports.
   By default, the secondary ports are configured i Copyfish
   The alternate configuration for the two ports is network. Daisy chain mode is not recommende Dante audio along with control data.
   NOTE: If using Dante audio in the network, the audio traffic needs to be filtered from reaching the wireless links.

3. Network configuration
   Frames are configured by default to obtain IP addresses automatically. The frame will assign itself an IP address in the link local range (169.254.1.0 through 169.254.254.255). If a computer is configured the same way (which should be default on modern operating systems), it will reside in the same subnet as the devices and communication can be established. Alternate configurations would be DHCP for a managed network or fixed IP.
   To connect to the secondary network in dual redundancy mode the computer shall be configured with an IP address in the 172.31.0.0 – 172.31.255.255.

4. Software installation and firmware update

5. Lake Controller software suite

6. The Lake controller software suite includes the Lake controller and accompanying utilities: Lake LoadLibrary,Dante discovery services and documentation. Download the Lake Controller installation from www.labgruppen.com.

7.  Execute the installer and follow the on-screen instructions. This is a typical software installation where the default settings are acceptable for the vast majority of users.

8. CAFÉ software

9. The CAFE software is available as a separate installer on www.labgruppen.com.

10. Execute the installer and follow the on-screen instructions. This is a typical software installation where the default settings are acceptable for the vast majority of users.

CAFÉ software

1. The CAFÉ software is available as a separate installer on www.labgruppen.com.
2. Execute the installer and follow the on-screen instructions. This is a typical software installation where the default settings are acceptable for the vast majority of users.

Firmware update
The latest firmware for the product is included in the Lake controller installation. It is likely that firmware installed on the new product is older and requires updating.

1. Make sure all frames are powered on and connected through a wired network.

2. Launch the Lake firmware update utility LakeUpdate.exe.

3. Select the appropriate product range.

4. If more than one network adapter is enabled, a prompt will appear requiring selection of the adapter connected to the frames.

5. If prompted, allow the application access through the Firewall.

6. Latest firmware is preselected.

7. Discovered frames are listed. Tap Select Old and Update to initiate firmware update of all outdated frames.
   Frames already up to date will not be selected.

8. Read warning message and tap OK.

9. Wait for all updates to be completed. A wait indication will display on the unit(s) during updating.

10. Follow the on screen instructions. Amplifiers with firmware associated with Lake Controller 6.5.0 or later will automatically power cycle the mains power, whereas amplifiers with older firmware will display a message that a manual power cycle is required. (Note: A manual power cycle requires the mains plug to be completely removed, the standby button does not complete the firmware update.)

11. If internal updates are needed, these will be performed by the frame after the power cycle. A wait indication is displayed.

12. Tap Exit to close the update utility.

System setup
This tutorial provides a step-by-step guide for configuration of a typical professional loudspeaker system and provides an overview of the basic features and operation of the frame. This tutorial describes how to configure 4-channel frame for use with a generic 3-way loudspeaker system (with separate HF, MF and LF drivers), plus a separate subwoofer. It assumes that the system is fed with analog outputs from a mixing console with one fullrange main output and a separate sub feed.

1. Connect the loudspeakers to the four power output channels: a. Channel 1 – Low Frequency Driver b. Channel 2 – Mid Range Driver c. Channel 3 – High Frequency Driver d. Channel 4 – Subwoofer

2. Connect the main output of the mixing console to analog input 1 of the frame and the sub feed to input 2. While configuring, it is a good practice to make sure the volume is turned down on the console.

3. Ensure the frame is powered on and is in its default state, and that the computer has established an active Ethernet connection.

4. On the Tablet PC, launch the Lake Controller software application. Select the appropriate network adapter if more than one is enabled, and tap NO to the dialog asking whether to load the previous configuration.

5. Tap MODULES button on the menu bar at the bottom of the screen to access the Module Menu and scroll bar.

6. On the Module scroll bar, the frame is represented with a frame containing four discs. These are labeled A, B C and D, each representing one of the four Lake processing modules.

7. Tap the frame to select it, then tap again in the MAIN area of the screen to place all modules of the frame in the current system configuration. The Lake Controller uploads settings from the frame.

8. Tap the icon for Module A; its border will turn yellow to confirm selection and an LED on the front panel of the associated device will illuminate.

9. Tap the Module Store/Recall button on the Modules Menu; the menu will change to show additional options.

10. Double tap the Default Modules folder, then double-tap the Contour Classic Crossovers folder. A set of loudspeaker symbols will be displayed.

11. Tap CL3way, and then tap the RECALL button. This configures the DSP for the Module A as a 3-way crossover for the 3 way speaker.

12. Tap Yes when asked to confirm that all data will be overwritten.

13. An Output configuration dialog will pop up to allow for routing of module outputs to power channels. Tap the orange number buttons in the matrix to un-route, freeing up a power channel. Tap a blue number button at the intersection of the appropriate module output and power channel, routing the module output to the power channel. Proceed until you have routing according to the picture below and tap the bottom right return button to exit the dialog.

14. The B module is already a CL1way as default and can be used to drive the sub.

15. Tap Store/Recall EXIT to return to the Modules Menu.

16. Ensuring Module A (or any other module that you want to control) is selected (yellow border), tap 1/0 Config.

17. The right side of the 1/O CONFIG screen displays a block diagram for the Modules. Tapping the different blue blocks will access the configuration screens for Input mixer, Levels, Input EQ, Delay and Output EQ/Crossover respectively. The magnifying glass at the far right end accesses the output configuration. (NOTE: Tapping the blue return button (left arrow), or the EQ/Levels EXIT button in the menu bar returns to the 1/O Config screen from the various configuration screens.)
    Input Mixer Configuration – Drag sliders and tap ON/OFF buttons to control input mixer settings.
    Parametric EQ control – Select filter on the top squares and adjust filter properties by dragging the controls. Sliders at the bottom control center frequency and Q (bandwidth). Gain is controlled in the main window area. Additional filters can be added by tapping the top filter objects and placing new filters on the main area.
    Crossover control – Select filters and drag on the bottom frequency bar to adjust crossover frequency. Crossover types may be changed by selecting the Crossover Functions button.

18. Tap the Input Gain button in the block diagram and unmute the Module Input Mute. Tap EQ/Levels Exit to return to 10 Config.

19. The left side of the lO config screen holds frame configuration and summary for Clock configuration, Input configuration, Dante configuration, Breaker Emulation Limiter configuration and Analog Iso-Float & AES Termination configuration. All these configurations should be correct by default for this example.

20. From 1/0 config, tap Amplifier Events & Control and navigate to the Status tab. Unmute the power channels and slowly increase the volume on the appropriate feed from the mixing console. Audio should now be active at the outputs and heard through the loudspeakers. Close the Amplifier Events & Control dialog with the return button and return to the main area by tapping the l/O Config EXIT button.

21. Repeat step 16 and 20 for the B module. On the Output EQ/Crossover, tap the Aux Output Functions button on the menu bar and then tap LPF Enable button. Drag the Low pass filter control object on the frequency slider just above the menu bar to an appropriate crossover frequency for the sub, e.g. 100 Hz.

22. Use the control options mentioned in 17 to tune your loudspeakers. For larger systems, modules can be placed in groups (Groups menu from the MAIN page) for control of multiple units.

23. Some features like RPM can only be configured from within CAFÉ software. Return to AMPLIFIER EVENTS & CONTROL; from the main area hit MODULES button, select a module (e.g. Module A), tap I/O Config,tap AMPLIFIER EVENTS & CONTROL, and navigate to the Control tab. The CAFÉ button (next to bottom) opens the CAFÉ application and imports and highlights the current amplifier and its RPM view.

Additional Software Reference Material
Additional information regarding configuration of Lake Controller for specific loudspeaker systems is available in the Lake Controller Operation Manual, available for download in PDF format at www.labgruppen.com/support.
Additional information on configuration of CAFÉ software is available in an integrated guide in the software program and in the CAFÉ Coach videos posted on the Lab gruppen web site and on the Lab.gruppen channel on YouTube.

Appendix

Faults and warnings

Category/Type| Name| On screen text| Description| Action|
---|---|---|---|---|---
FRAME| | | |

Warning

| ****

Lake Controller offline

| ****

CTRL OFFLINE

| ****

Frame unable to find Lake controller

on the network

| ****

Check network cabling/ network if controller expected on the network

Warning

| ****

AES / Dante clock slipping

| ****

CLOCK SLIPPING

| ****

Frame not able to lock to incoming AES stream or Dante clock slipping.

| ****

Check AES sender and clock configuration or Dante clock settings

Warning

| ****

Dante device name conflict

| ****

NAME CONFLICT

| ****

Two or more devices on the network with the same Dante name

| ****

Review Dante

configuration

Warning

| ****

Dante module not detected

| ****

DANTE NEEDS SERVICE

| ****

Lake cannot detect a functioning Dante module

| ****

Restart device; if not cleared it needs service to operate Dante

Warning

| ****

Dante module with

incompatible firmware

| ****

DANTE FW INVALID

| ****

Dante module not loaded with correct FW

| ****

Retry updating the firmware

with LakeUpdate

Warning

| ****

Dante module disabled

| ****

DANTE DISABLED

| ****

Dante module not communicated correctly or other internal configuration fault

| ****

Restart device; if not cleared it needs service

Warning

| ****

Sense fault DSP

| ****

SENS FLT:DSP

| ****

Voltage and current sensing on amplifier output faulty. Audio continues but protection might be compromised.

No load monitoring

| ****

Restart device; if not cleared it needs service

Warning

| ****

A/D converter power supply fault

| ****

A/D PSU FAULT

| ****

Voltage supply to the analog input converters faulty

| ****

Restart device; if not cleared it needs service for analog input to work

Fault

| ****

Audio Fault

| ****

AUDIO FAULT

| ****

Internal audio interface not functioning

| ****

Restart device; if not cleared it needs service

Fault

| ****

DICO communication fault

| ****

DICO COMM FAULT

| ****

Communication fault between host

and amplifier platform

| ****

Restart device; if not cleared it needs service

TEMP| | | |

Warning

| ****

Temperature warning power supply

| ****

TEMP WARN:PSU

| ****

Power supply temperature approaching critical levels

| ****

Improve cooling or reduce output power to avoid temperature becoming critical

Warning

| ****

Temperature warning DSP area

| ****

TEMP WARN:DSP

| ****

DSP area temperature approaching critical levels

| ****

Improve cooling or reduce output power to avoid temperature becoming critical

Warning

| ****

Power supply Temperature Limit

| ****

PTL ACTIVE

| Amplifier is reducing output power

to avoid power supply temp fault protection

| Improve cooling or reduce output power to avoid limiting

Warning

| ****

Amp channel Temperature Limit

| ****

ATL ACTIVE

| ****

Amplifier channel is reducing output power to avoid amplifier channel temp fault protection

| ****

Improve cooling or reduce output power to avoid limiting

Warning

| ****

Under speaker count

| ****

UNDER SPKR CNT

| ****

Both LoadPilot tones above thresholds or LoadSmart detected fewer speakers than expected

| ****

Check load, cabling and calibration

---|---|---|---|---

Warning

| ****

More speakers

| ****

OVR SPKR COUNT

| ****

LoadSmart detected more speakers than expected

| ****

Check load and

Warning

| ****

Uncertain about load

| ****

UNCERTAIN LOAD

| ****

LoadSmart uncertain about load

| ****

Check load and

Fault

| ****

No load

| ****

NO LOAD

| At least one LoadPilot tone above above thresholds| ****

Check load or calibration

Fault

| ****

Wrong load

| ****

WRONG LOAD

| ****

LoadSmart detected impedance response output model

| ****

Check load and

Fault

| ****

Short circuit

| ****

SHORT CIRCUIT

| ****

LoadPilot or full frequency analysis below short threshold or hardware short protection

| ****

Check load and cabling

AMP

| | | |

Warning

| ****

channel

| ****

TEMP WARN

| ****

critical temperature

| Improve cooling or reduce output power to avoid temperature becoming critical

Warning

(D200, D120, D80 only)

| ****

Very high frequency warning

| ****

VHF WARNING

| ****

Amplifier channel gain reduction due to VHF content

| ****

Check input signal

Fault

| | ****

TEMP FAULT

| ****

internal protection limit

| ****

Automatically unmutes when cooled down

Fault

| ****

Service channel

| ****

SERVICE CH.

| | ****

Restart device; if not cleared it needs service

Fault

| ****

Very high frequency fault

| ****

VHF FAULT

| | ****

Check input signal

Fault

| ****

Current average limiter

| ****

CAL ACTIVE

| ****

above safe operating level

| ****

Reduce output power to avoid limiting

Clip

| ****

Current clip

| ****

CURRENT CLIP

| ****

current limit

| ****

Reduce output power to avoid limiting

Clip

| ****

Voltage clip

| ****

VOLTAGE CLIP

| | ****

Reduce output power to avoid limiting

Clip

| ****

Module clip

| ****

MOD. CLIP

| ****

Module output signal clipped

| ****

Review gain structure. Module gain vs AmpGain

SIGNAL

| | | |

Fault

| ****

No input source

| ****

NO INPUT

| ****

Input router has no valid input source

| ****

Review input router settings/connections

Clip

| ****

Analog/AES input clip

| ****

INPUT CLIP

| ****

The signal on the analog/AES input is above inputs capability

| ****

Lower the signal on the

Current draw and thermal dissipation

D SERIES 10:4

Level

| ****

Load

| Rated power per channel| ****

Line Current

| ****

Measured Power (W)

| ****

Thermal Dissipation

| | | (A)| In| Out| Dissipated| BTU/hr| kCal/hr
Mains Voltage 100 VAC
Standby| 0.1| 7| 0| 7| 24| 6
Power On, Idling, Green Mode| 0.5| 45| 0| 45| 153| 38
Power On, Idling, Performance Mode| 0.7| 71| 0| 71| 241| 61

Pink Pseudo Noise

| 16 Ω / Ch.| 250 x 4| 2.3| 229| 125| 104| 355| 89
8 Ω / Ch.| 250 x 4| 2.4| 240| 125| 115| 391| 98
4 Ω / Ch.| 250 x 4| 2.6| 254| 125| 129| 439| 111
2 Ω / Ch.| 250 x 4| 2.8| 279| 125| 154| 527| 133
100 V / Ch.| 175 x 4| 1.8| 179| 88| 92| 313| 79
70 V / Ch.| 250 x 4| 2.3| 230| 125| 105| 358| 90
Mains Voltage 120 VAC
Standby| 0.1| 7| 0| 7| 24| 6
Power On, Idling, Green Mode| 0.4| 44| 0| 44| 152| 38
Power On, Idling, Performance Mode| 0.6| 70| 0| 70| 238| 60

Pink Pseudo Noise

| 16 Ω / Ch.| 250 x 4| 1.9| 228| 125| 103| 350| 88
8 Ω / Ch.| 250 x 4| 2.0| 238| 125| 113| 386| 97
4 Ω / Ch.| 250 x 4| 2.1| 252| 125| 127| 433| 109
2 Ω / Ch.| 250 x 4| 2.3| 277| 125| 152| 519| 131
100 V / Ch.| 175 x 4| 1.5| 179| 88| 91| 311| 78
70 V / Ch.| 250 x 4| 1.9| 229| 125| 103| 353| 89
Mains Voltage 208 VAC
Standby| 0.1| 7| 0| 7| 24| 6
Power On, Idling, Green Mode| 0.3| 42| 0| 42| 142| 36
Power On, Idling, Performance Mode| 0.4| 66| 0| 66| 225| 57

Pink Pseudo Noise

| 16 Ω / Ch.| 250 x 4| 1.1| 221| 125| 96| 328| 83
8 Ω / Ch.| 250 x 4| 1.1| 228| 125| 103| 353| 89
4 Ω / Ch.| 250 x 4| 1.2| 245| 125| 120| 408| 103
2 Ω / Ch.| 250 x 4| 1.3| 269| 125| 144| 493| 124
100 V / Ch.| 175 x 4| 0.9| 174| 88| 86| 294| 74
70 V / Ch.| 250 x 4| 1.1| 222| 125| 97| 332| 84
Mains Voltage 230 VAC
Standby| 0.1| 7| 0| 7| 25| 6
Power On, Idling, Green Mode| 0.3| 41| 0| 41| 141| 36
Power On, Idling, Performance Mode| 0.3| 65| 0| 65| 222| 56

Pink Pseudo Noise

| 16 Ω / Ch.| 250 x 4| 1.0| 218| 125| 93| 317| 80
8 Ω / Ch.| 250 x 4| 1.0| 225| 125| 100| 342| 86
4 Ω / Ch.| 250 x 4| 1.1| 238| 125| 113| 387| 97
2 Ω / Ch.| 250 x 4| 1.2| 263| 125| 138| 472| 119
100 V / Ch.| 175 x 4| 0.8| 168| 88| 81| 275| 69
70 V / Ch.| 250 x 4| 1.0| 216| 125| 91| 311| 78
D SERIES 20:4

Level

| ****

Load

| Rated power per channel| ****

Line Current

| ****

Measured Power (W)

| ****

Thermal Dissipation

| | | (A)| In| Out| Dissipated| BTU/hr| kCal/hr
Mains Voltage 100 VAC
Standby| 0.2| 7| 0| 7| 24| 6
Power On, Idling, Green Mode| 0.5| 46| 0| 46| 157| 39
Power On, Idling, Performance Mode| 0.7| 71| 0| 71| 243| 61

Pink Pseudo Noise

| 16 Ω / Ch.| 425 x 4| 2.9| 348| 213| 136| 463| 117
8 Ω / Ch.| 500 x 4| 3.5| 418| 250| 168| 573| 144
4 Ω / Ch.| 500 x 4| 3.7| 444| 250| 194| 662| 167
2 Ω / Ch.| 500 x 4| 4.1| 492| 250| 242| 825| 208
100 V / Ch.| 250 x 4| 1.9| 230| 125| 105| 360| 91
70 V / Ch.| 500 x 4| 3.5| 410| 250| 160| 546| 138
Mains Voltage 120 VAC
Standby| 0.1| 7| 0| 7| 23| 6
Power On, Idling, Green Mode| 0.4| 45| 0| 45| 155| 39
Power On, Idling, Performance Mode| 0.6| 71| 0| 71| 241| 61

Pink Pseudo Noise

| 16 Ω / Ch.| 425 x 4| 2.9| 346| 213| 134| 457| 115
8 Ω / Ch.| 500 x 4| 3.5| 411| 250| 161| 550| 139
4 Ω / Ch.| 500 x 4| 3.7| 441| 250| 190| 650| 164
2 Ω / Ch.| 500 x 4| 4.1| 487| 250| 237| 810| 204
100 V / Ch.| 250 x 4| 2.0| 231| 125| 106| 361| 91
70 V / Ch.| 500 x 4| 3.4| 408| 250| 158| 540| 136
Mains Voltage 208 VAC
Standby| 0.1| 7| 0| 7| 24| 6
Power On, Idling, Green Mode| 0.3| 43| 0| 43| 147| 37
Power On, Idling, Performance Mode| 0.4| 67| 0| 67| 229| 58

Pink Pseudo Noise

| 16 Ω / Ch.| 425 x 4| 1.5| 336| 213| 124| 422| 106
8 Ω / Ch.| 500 x 4| 1.8| 398| 250| 148| 506| 127
4 Ω / Ch.| 500 x 4| 1.9| 426| 250| 176| 600| 151
2 Ω / Ch.| 500 x 4| 2.1| 471| 250| 221| 753| 190
100 V / Ch.| 250 x 4| 1.0| 224| 125| 99| 339| 85
70 V / Ch.| 500 x 4| 1.8| 395| 250| 145| 496| 125
Mains Voltage 230 VAC
Standby| 0.2| 7| 0| 7| 24| 6
Power On, Idling, Green Mode| 0.3| 43| 0| 43| 146| 37
Power On, Idling, Performance Mode| 0.4| 67| 0| 67| 227| 57

Pink Pseudo Noise

| 16 Ω / Ch.| 425 x 4| 1.5| 333| 213| 120| 411| 104
8 Ω / Ch.| 500 x 4| 1.8| 394| 250| 144| 493| 124
4 Ω / Ch.| 500 x 4| 1.9| 419| 250| 169| 577| 145
2 Ω / Ch.| 500 x 4| 2.1| 467| 250| 217| 741| 187
100 V / Ch.| 250 x 4| 1.0| 222| 125| 97| 331| 83
70 V / Ch.| 500 x 4| 1.8| 392| 250| 142| 484| 122
D SERIES 40:4

Level

| ****

Load

| Rated power per channel| ****

Line Current

| ****

Measured Power (W)

| ****

Thermal Dissipation

| | | (A)| In| Out| Dissipated| BTU/hr| kCal/hr
Mains Voltage 100 VAC
Standby| 0.2| 7| 0| 7| 24| 6
Power On, Idling, Green Mode| 0.6| 59| 0| 59| 201| 51
Power On, Idling, Performance Mode| 0.8| 78| 0| 78| 267| 67

Pink Pseudo Noise

| 16 Ω / Ch.| 700 x 4| 5.1| 502| 350| 152| 518| 131
8 Ω / Ch.| 1000 x 4| 7.2| 709| 500| 209| 714| 180
4 Ω / Ch.| 1000 x 4| 7.6| 754| 500| 254| 868| 219
2 Ω / Ch.| 800 x 4| 7.0| 689| 400| 289| 986| 249
100 V / Ch.| 1000 x 4| 7.1| 701| 500| 200| 684| 172
70 V / Ch.| 1000 x 4| 7.5| 738| 500| 238| 812| 205
Mains Voltage 120 VAC
Standby| 0.2| 7| 0| 7| 24| 6
Power On, Idling, Green Mode| 0.5| 59| 0| 59| 200| 50
Power On, Idling, Performance Mode| 0.7| 77| 0| 77| 263| 66

Pink Pseudo Noise

| 16 Ω / Ch.| 700 x 4| 4.2| 497| 350| 147| 503| 127
8 Ω / Ch.| 1000 x 4| 5.9| 700| 500| 199| 681| 172
4 Ω / Ch.| 1000 x 4| 6.3| 743| 500| 243| 829| 209
2 Ω / Ch.| 800 x 4| 5.7| 679| 400| 279| 953| 240
100 V / Ch.| 1000 x 4| 5.8| 690| 500| 190| 648| 163
70 V / Ch.| 1000 x 4| 6.1| 726| 500| 226| 772| 195
Mains Voltage 208 VAC
Standby| 0.3| 7| 0| 7| 25| 6
Power On, Idling, Green Mode| 0.5| 58| 0| 58| 198| 50
Power On, Idling, Performance Mode| 0.5| 77| 0| 77| 263| 66

Pink Pseudo Noise

| 16 Ω / Ch.| 700 x 4| 2.2| 486| 350| 136| 464| 117
8 Ω / Ch.| 1000 x 4| 3.1| 681| 500| 181| 617| 155
4 Ω / Ch.| 1000 x 4| 3.3| 723| 500| 223| 759| 191
2 Ω / Ch.| 800 x 4| 3.0| 662| 400| 261| 892| 225
100 V / Ch.| 1000 x 4| 3.0| 673| 500| 173| 589| 148
70 V / Ch.| 1000 x 4| 3.2| 707| 500| 207| 707| 178
Mains Voltage 230 VAC
Standby| 0.3| 7| 0| 7| 25| 6
Power On, Idling, Green Mode| 0.4| 58| 0| 58| 197| 50
Power On, Idling, Performance Mode| 0.5| 77| 0| 77| 263| 66

Pink Pseudo Noise

| 16 Ω / Ch.| 700 x 4| 2.2| 474| 350| 124| 423| 106
8 Ω / Ch.| 1000 x 4| 3.0| 664| 500| 164| 558| 141
4 Ω / Ch.| 1000 x 4| 3.2| 705| 500| 205| 701| 176
2 Ω / Ch.| 800 x 4| 3.0| 649| 400| 249| 850| 214
100 V / Ch.| 1000 x 4| 3.0| 659| 500| 159| 544| 137
70 V / Ch.| 1000 x 4| 3.2| 694| 500| 194| 661| 166
D SERIES 80:4

Level

| ****

Load

| Rated power per channel| ****

Line Current

| Power Factor| ****

Measured Power (W)

| ****

Thermal Dissipation

| | | (A)| (%)| In| Out| Dissipated| BTU/hr| kCal/hr
Mains Voltage 100 VAC, 30 A
Standby| 0.3| 43| 11| 0| 11| 36| 9
Power on, Idling| 2.1| 99| 204| 0| 204| 696| 175

Pink Pseudo Noise

| 16 0 / Ch.| 750| 10.1| 99| 981| 375| 607| 2070| 522
8 0 / Ch.| 1500| 15.3| 99| 1492| 749| 743| 2534| 639
4 0 / Ch.| 2000| 14.9| 99| 1502| 652| 850| 2900| 731
2.67 0 / Ch.| 2000| 15.3| 99| 1539| 625| 914| 3120| 787
2 0 / Ch.| 2000| 15.2| 99| 1538| 560| 978| 3337| 841
LoadPilot Sine 20 kHz| ****

8 0 / Ch.

| | ****

2.2

| ****

98

| ****

211

| ****

0

| ****

211

| ****

720

| ****

181

Mains Voltage 120 VAC, 30 A
Standby| 0.3| 35| 11| 0| 11| 37| 9
Power on, Idling| 1.8| 98| 202| 0| 202| 689| 174

Pink Pseudo Noise

| 16 0 / Ch.| 750| 8.0| 99| 954| 375| 579| 1977| 499
8 0 / Ch.| 1500| 12.6| 99| 1476| 749| 727| 2480| 625
4 0 / Ch.| 2000| 14.4| 99| 1739| 817| 923| 3148| 794
2.67 0 / Ch.| 2000| 14.7| 99| 1780| 766| 1014| 3461| 873
2 0 / Ch.| 2000| 15.2| 99| 1839| 739| 1101| 3755| 947
LoadPilot Sine 20 kHz| ****

8 0 / Ch.

| | ****

1.8

| ****

98

| ****

211

| ****

0

| ****

211

| ****

719

| ****

181

Mains Voltage 208 VAC, 17.3 A
Standby| 0.3| 17| 11| 0| 11| 39| 10
Power on, Idling| 1.1| 91| 197| 0| 197| 673| 170

Pink Pseudo Noise

| 16 0 / Ch.| 750| 4.6| 99| 927| 375| 552| 1884| 475
8 0 / Ch.| 1500| 7.1| 99| 1436| 749| 687| 2345| 591
4 0 / Ch.| 2000| 9.3| 100| 1955| 1000| 955| 3260| 822
2.67 0 / Ch.| 2000| 9.8| 100| 2087| 1003| 1084| 3698| 933
2 0 / Ch.| 2000| 10.3| 100| 2182| 1001| 1181| 4030| 1016
LoadPilot Sine 20 kHz| ****

8 0 / Ch.

| | ****

1.1

| ****

92

| ****

204

| ****

0

| ****

204

| ****

695

| ****

175

Mains Voltage 230 VAC, 16 A
Standby| 0.3| 17| 12| 0| 12| 39| 10
Power on, Idling| 1.0| 89| 193| 0| 193| 660| 166

Pink Pseudo Noise

| 16 0 / Ch.| 750| 4.2| 99| 948| 375| 573| 1957| 493
8 0 / Ch.| 1500| 6.4| 99| 1443| 749| 694| 2369| 597
4 0 / Ch.| 2000| 8.1| 99| 1907| 1000| 906| 3092| 780
2.67 0 / Ch.| 2000| 8.7| 100| 2052| 1003| 1049| 3580| 903
2 0 / Ch.| 2000| 9.4| 100| 2200| 1000| 1201| 4096| 1033
LoadPilot Sine 20 kHz| ****

8 0 / Ch.

| | ****

1.0

| ****

89

| ****

204

| ****

0

| ****

204

| ****

695

| ****

175

D SERIES 120:4

Level

| ****

Load

| Rated power per channel| ****

Line Current

| Power Factor| ****

Measured Power (W)

| ****

Thermal Dissipation

| | | (A)| (%)| In| Out| Dissipated| BTU/hr| kCal/hr
Mains Voltage 100 VAC, 30 A
Standby| 0.3| 43| 12| 0| 12| 40| 10
Power on, Idling| 2.3| 98| 219| 0| 219| 749| 189

Pink Pseudo Noise

| 16 0 / Ch.| 950| 10.8| 99| 1059| 475| 584| 1994| 503
8 0 / Ch.| 1900| 19.2| 99| 1868| 949| 919| 3136| 791
4 0 / Ch.| 3000| 24.6| 99| 2389| 1200| 1189| 4057| 1023
2.67 0 / Ch.| 3000| 25.7| 99| 2551| 1151| 1400| 4776| 1204
2 0 / Ch.| 3000| 25.8| 99| 2576| 1113| 1463| 4992| 1259
LoadPilot Sine 20 kHz| ****

8 0 / Ch.

| | ****

2.4

| ****

98

| ****

231

| ****

0

| ****

231

| ****

789

| ****

199

Mains Voltage 120 VAC, 30 A
Standby| 0.3| 36| 11| 0| 11| 39| 10
Power on, Idling| 1.9| 98| 215| 0| 215| 734| 185

Pink Pseudo Noise

| 16 0 / Ch.| 950| 8.8| 99| 1035| 475| 560| 1910| 482
8 0 / Ch.| 1900| 15.1| 99| 1765| 949| 815| 2783| 702
4 0 / Ch.| 3000| 24.0| 99| 2817| 1502| 1315| 4487| 1131
2.67 0 / Ch.| 3000| 24.5| 99| 2894| 1437| 1456| 4969| 1253
2 0 / Ch.| 3000| 25.1| 99| 2980| 1361| 1619| 5524| 1393
LoadPilot Sine 20 kHz| ****

8 0 / Ch.

| | ****

2.0

| ****

97

| ****

226

| ****

0

| ****

226

| ****

773

| ****

195

Mains Voltage 208 VAC, 17.3 A
Standby| 0.3| 18| 12| 0| 12| 42| 11
Power on, Idling| 1.1| 91| 211| 0| 211| 720| 182

Pink Pseudo Noise

| 16 0 / Ch.| 950| 4.9| 99| 1001| 475| 526| 1795| 453
8 0 / Ch.| 1900| 8.7| 99| 1766| 949| 816| 2786| 702
4 0 / Ch.| 3000| 13.3| 99| 2687| 1501| 1186| 4046| 1020
2.67 0 / Ch.| 3000| 14.0| 99| 2847| 1500| 1346| 4594| 1158
2 0 / Ch.| 3000| 14.8| 99| 3046| 1500| 1546| 5276| 1330
LoadPilot Sine 20 kHz| ****

8 0 / Ch.

| | ****

1.2

| ****

93

| ****

221

| ****

0

| ****

221

| ****

754

| ****

190

Mains Voltage 230 VAC, 16 A
Standby| 0.3| 18| 13| 0| 13| 43| 11
Power on, Idling| 1.0| 90| 205| 0| 205| 698| 176

Pink Pseudo Noise

| 16 0 / Ch.| 950| 4.7| 99| 1003| 475| 529| 1803| 455
8 0 / Ch.| 1900| 7.7| 99| 1734| 949| 784| 2676| 675
4 0 / Ch.| 3000| 11.4| 99| 2562| 1501| 1061| 3620| 913
2.67 0 / Ch.| 3000| 12.8| 99| 2873| 1499| 1374| 4688| 1182
2 0 / Ch.| 3000| 13.1| 99| 2993| 1500| 1493| 5095| 1285
LoadPilot Sine 20 kHz| ****

8 0 / Ch.

| | ****

1.0

| ****

90

| ****

214

| ****

0

| ****

214

| ****

730

| ****

184

D SERIES 200:4

Level

| ****

Load

| Rated power per channel| ****

Line Current

| Power Factor| ****

Measured Power (W)

| ****

Thermal Dissipation

| | | (A)| (%)| In| Out| Dissipated| BTU/hr| kCal/hr
Mains Voltage 100 VAC, 30 A
Standby| 0.3| 52| 17| 0| 17| 58| 15
Power on, Idling| 2.4| 97| 235| 0| 235| 802| 202

Pink Pseudo Noise

| 16 0 / Ch.| 1150| 12.1| 99| 1192| 588| 604| 2061| 520
8 0 / Ch.| 2300| 22.3| 99| 2198| 1174| 1024| 3493| 881
4 0 / Ch.| 4400| 29.2| 99| 2853| 1478| 1375| 4691| 1183
2.67 0 / Ch.| 5000| 29.2| 99| 2862| 1399| 1463| 4991| 1259
2 0 / Ch.| 4400| 29.1| 99| 2826| 1355| 1472| 5022| 1266
LoadPilot Sine 20 kHz| ****

8 0 / Ch.

| | ****

2.5

| ****

97

| ****

236

| ****

0

| ****

236

| ****

807

| ****

203

Mains Voltage 120 VAC, 30 A
Standby| 0.3| 48| 17| 0| 17| 58| 15
Power on, Idling| 2.0| 97| 227| 0| 227| 775| 195

Pink Pseudo Noise

| 16 0 / Ch.| 1150| 12.0| 99| 1180| 588| 593| 2023| 510
8 0 / Ch.| 2300| 18.4| 99| 2144| 1174| 970| 3310| 835
4 0 / Ch.| 4400| 30.0| 99| 3457| 1896| 1561| 5326| 1343
2.67 0 / Ch.| 5000| 29.5| 99| 3439| 1752| 1687| 5756| 1451
2 0 / Ch.| 4400| 29.9| 99| 3495| 1665| 1830| 6245| 1575
LoadPilot Sine 20 kHz| ****

8 0 / Ch.

| | ****

2.0

| ****

97

| ****

232

| ****

0

| ****

232

| ****

790

| ****

199

Mains Voltage 208 VAC, 17.3 A
Standby| 0.3| 27| 18| 0| 18| 60| 15
Power on, Idling| 1.2| 92| 222| 0| 222| 757| 191

Pink Pseudo Noise

| 16 0 / Ch.| 1150| 5.7| 99| 1151| 588| 564| 1923| 485
8 0 / Ch.| 2300| 10.2| 99| 2055| 1174| 881| 3005| 758
4 0 / Ch.| 4400| 16.2| 99| 3286| 1948| 1338| 4565| 1151
2.67 0 / Ch.| 5000| 15.6| 99| 3171| 1752| 1419| 4843| 1221
2 0 / Ch.| 4400| 16.0| 99| 3253| 1665| 1589| 5420| 1367
LoadPilot Sine 20 kHz| ****

8 0 / Ch.

| | ****

1.2

| ****

92

| ****

229

| ****

0

| ****

229

| ****

780

| ****

197

Mains Voltage 230 VAC, 16 A
Standby| 0.3| 23| 18| 0| 18| 61| 15
Power on, Idling| 1.2| 92| 222| 0| 222| 757| 191

Pink Pseudo Noise

| 16 0 / Ch.| 1150| 5.1| 98| 1134| 588| 546| 1863| 470
8 0 / Ch.| 2300| 9.2| 99| 2053| 1174| 879| 2999| 756
4 0 / Ch.| 4400| 15.9| 99| 3529| 2109| 1420| 4845| 1222
2.67 0 / Ch.| 5000| 16.0| 99| 3564| 1935| 1630| 5561| 1402
2 0 / Ch.| 4400| 16.0| 99| 3577| 1856| 1722| 5875| 1481
LoadPilot Sine 20 kHz| ****

8 0 / Ch.

| | ****

1.1

| ****

90

| ****

228

| ****

0

| ****

228

| ****

777

| ****

196

Maintenance
During normal operation a D Series device provides trouble–free service. If the front panel display requires cleaning, use a soft cloth only; do not use solvent cleaners.
The dust filters on both sides of the front panel, behind the grilles, should occasionally be removed and cleaned to ensure maximum airflow through the device. Disconnect the unit from mains power prior to removing dust the filter, and ensure the dust filter is replaced prior to turning the unit back on.
In extreme cases it may be necessary to clean the inside of the device. This procedure should only be carried out by qualified service personnel. Internal cleaning may be necessary if the device has had prolonged operation in an extreme environment such as one where cracked oil smoke machines are in use. If the device is used in extreme conditions, it is recommended to have it serviced every three years as a preventative measure.

Technical Specifications

Note 1 ): Lab.gruppen burst power (1 kHz, 25 ms burst power @ 150 BPM, 12 dB Crest factor)

All specifications are subject to change without notice.

Warranty and support

General
This product is manufactured by Lab.gruppen, and it is warranted to be free from any defects caused by components or factory workmanship, under normal use and service, for a period of ten (10) years from date of purchase from an authorized Lab.gruppen dealer. If the product fails to perform as specified during the warranty period, Lab.gruppen will undertake to repair, or at its option, replace this product at no charge to its owner, provided the unit is returned undamaged, shipping prepaid, to an authorized service facility or to the factory. This warranty shall be null and void if the product is subjected to: repair work or alteration by a person other than those authorized by us; mechanical damage including shipping accidents; war, civil insurrection, misuse, abuse, operation with incorrect AC voltage; incorrect connections or accessories; operation with faulty associated equipment; or exposure to inclement weather conditions. Damage due to normal wear and tear is not covered by the warranty. Units on which the serial number has been removed or defaced will not be eligible for warranty service. Lab.gruppen shall not be responsible for any incidental or consequential damages. Lab.gruppen’s responsibility is limited to the product itself. Lab.gruppen takes no responsibility for any loss due to cancellation of any events, or rent of replacement equipment or costs due to a third party’s or customer’s loss of profit, or any other indirect cost or losses however incurred. Lab.gruppen reserves the right to make changes or improvements in design or manufacturing without assuming any obligation to change or improve products previously manufactured. This warranty is exclusive, and no other warranty is expressed or implied. This warranty does not affect the customer’s statutory rights.

International Warranties
Please contact your supplier or distributor for this information, as rights and disclaimers may vary from country to country.

Technical assistance and service

International service
If your Lab.gruppen product requires repair, contact your Lab.gruppen dealer or distributor, visit http://labgruppen.com/support or contact Lab.gruppen by phone or email to obtain details for the nearest authorized service center.

Factory service
In the event a Lab.gruppen product requires factory service, you may contact Lab.gruppen’s service department for return instructions and a Return Authorization number.
Please note for product return:

1. Use the original packing.
2. Include a copy of the sales receipt, your name, return address, phone and fax number, email address and description of the defect.
3.  Mark the Return Authorization number on the outside of the packing.

Ship the product prepaid to:
Music Group Innovation Sweden AB Faktorvägen 1 SE-434 37 Kungsbacka
Sweden
Phone: +46 300 56 28 00
service@labgruppen.com www.labgruppen.com

Lab.gruppen adopts a policy of continuous improvement and product specification is subject to change.
RPM, R.SMPS, PFC, CDM, BEL, UVL, CAFÉ, ESP, ISVPL, Iso–Float, Raised Cosine, MESA EQ, LimiterMax and LoadLibrary are trademarks of Lab.gruppen AB. All other trademarks remain the property of their respective owners. Copyright © 2017 MUSIC Group Innovation Sweden AB. All rights reserved.

labgruppen.com

References

• Lab Gruppen | Home
• Lab Gruppen | Home

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