DYNACORD V600:4 Power Amplifier Instruction Manual

DYNACORD V600:4 Power Amplifier

Product Information

Specifications

• Model: V Series
• V600:4 | V600:2
• Input Voltage: 100-240 Vac
• Audio Output Voltage: Up to 120 VRMS
• Power Source: Mains power outlet socket with protective earthing connection
• Installation: Rack-mountable
• Weight: Varies based on model

Product Usage Instructions

Safety Information
Before using the product, ensure to read and follow all safety instructions provided in the manual. Some key safety points include:

• Download and refer to the latest installation manual for proper installation guidelines.
• Ensure installation is done by qualified personnel following local codes.
• Avoid exposure to dripping or splashing liquids.
• Connect mains powered equipment to a protective earthing connection.
• Do not listen at high volume levels for extended periods to prevent hearing damage.

Installation Instructions
For proper installation, follow these steps:

1. Ensure the equipment rack for rack-mounting is of suitable quality to support the weight of the devices.
2. Connect mains powered equipment to a mains power outlet socket with a protective earthing connection.
3. Only replace the mains fuse with a fuse of the same type.
4. Connect the protective ground connection before connecting the apparatus to a power supply.
5. When connecting amplifier outputs, ensure proper insulation to avoid electric shock.

Disposal Instructions
When disposing of old electrical or electronic devices, make sure to follow the guidelines provided in the manual:

• Old devices must be collected separately for environmentally compatible recycling.
• Utilize return and collection systems established in your country for proper disposal.

Frequently Asked Questions (FAQ)

Q: Can I install the product myself?
A: Installation should be carried out by qualified personnel following the provided installation manual.

Q: What should I do if there is a risk of electric shock?
A: If there is a risk of electric shock, immediately disconnect the power source and seek professional assistance.

Important product information Safety Information

1. Read and keep these safety instructions. Follow all instructions and heed all warnings.

2. Download the latest version of the applicable installation manual from www.dynacord.com for installation instructions.
   Information
   Refer to the Installation Manual for instructions.

3. Follow all installation instructions and observe the following alert signs:
   Notice! Containing additional information. Usually, not observing a notice does not result in damage to the equipment or personal injuries.
   Caution! The equipment or the property can be damaged, or persons can be injured if the alert is not observed.
   Warning! Risk of electric shock.

4. System installation and servicing by qualified personnel only, in accordance with applicable local codes. No user-serviceable parts inside.

5. System installation for emergency sound (except for call stations and call station extensions) in a Restricted Access Area only. Children may not get access to the system.

6. For rack-mounting of system devices, make sure that the equipment rack is of suitable quality to support the weight of the devices. Use caution when moving a rack to avoid injury from tip over.

7. The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such as vases, shall be placed on the apparatus.
   Warning! To reduce the risk of fire and electric shock, do not expose this apparatus to rain or moisture.

8. Mains powered equipment shall be connected to a mains power outlet socket with a protective earthing connection. An external, readily operable, mains plug or all‑pole mains switch shall be installed.

9. Only replace the mains fuse of an apparatus with a fuse of the same type.

10. The protective ground connection of an apparatus shall be connected to protective ground before the apparatus is connected to a power supply.

11. This unit has an autoranging input circuitry suitable for 100‑240 Vac.

12. Amplifier outputs marked with may carry audio output voltages up to 120 VRMS. Touching uninsulated terminals or wiring may result in an unpleasant sensation.
    Amplifier outputs marked with or  may carry audio output voltages above 120 VRMS
    It requires a skilled person to strip and connect the loudspeaker wires in such a way that the naked conductors are inaccessible.

13. To prevent hearing damage do not listen at high volume levels for long periods.

Disposal instructions
Old electrical and electronic appliances.
Electrical or electronic devices that are no longer serviceable must be collected separately and sent for environmentally compatible recycling (in accordance with the European Waste Electrical and Electronic Equipment Directive).
To dispose of old electrical or electronic devices, you should use the return and collection systems put in place in the country concerned.

Class B Notice for FCC and ICES 003
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules and Canadian ICES‑003 requirements. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. 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 off and on,the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

About this manual

The purpose of this manual is to provide information required for installing, configuring, operating and maintaining these products.
Read through this manual to familiarize yourself with the safety information, features, and applications before you use it.

Digital document
This manual is available as a digital document in the Adobe Portable Document Format (PDF).
You can find information about Dynacord products on the product related information at www.dynacord.com.

Intended audience
This manual is intended for everyone who is authorized to install and use these products.

Copyright notice
Unless otherwise indicated, this publication is the copyright of Dynacord. All rights are reserved.

Trademarks
Throughout this document trademark names may have been used. Rather than put a trademark symbol in every occurrence of a trademark name, Dynacord states that the names are used only in an editorial fashion and to the benefit of the trademark owner with no intention of infringement of the trademark.

Notice of liability
While every effort has been taken to ensure the accuracy of this document, neither Dynacord nor any of its official representatives shall have any liability to any person or entity with respect to any liability, loss or damage caused or alleged to be caused directly or indirectly by the information contained in this document.
Dynacord reserves the right to make changes to features and specifications at any time without prior notification in the interest of ongoing product development and improvement.

Short information
The following table lists products in a family, with CTN (Commercial Type Number) and identifying product name DESCRIPTION.

Document history

Product introduction

The V series power amplifiers are ideally suited to background music and clear voice announcement applications such as:

• Bars and restaurants
• Retail outlets
• Education
• Houses of worship
• Museums and galleries
• Transport hubs
• Conference centers

The V600:4 is a 600 W power amplifier with powerTANK technology that flexibly delivers the total power over its 4 channels.

The V600:2 is a 600 W power amplifier with powerTANK technology that flexibly delivers the total power over its 2 channels.

Features and functions

• 4‑channel amplifier (V600:4) / 2-channel (V600:2) amplifier with a total power TANK capacity of 600 W.
  powerTANK is a reservoir of available amplification power that is deployed flexibly across all amplifier channels. There is no need to set up the power TANK as it adapts to the requirements of each zone or output without extra manual configuration of each individual channel.

• Variable Load Drive (VLD) providing the same power into 4 Ω, 8 Ω, 70 V or 100 V Variable Load Drive (VLD) ensures that the powerTANK capacity is utilized efficiently, providing consistent power to any channel with different loads.

• dual cool convection cooling with additional intelligent fan in case of extreme thermal conditions
  The dualCOOL thermal design means that the amplifier typically operates as a convection-cooled amplifier, but in extreme thermal conditions the amplifier is also equipped with an intelligent multi‑speed fan to ensure maximum performance and reliability in any application.

• ecoRAIL and APD deliver significant reduction in power consumption ecoRAIL’s power consumption is similar to a regular standby level, yet ecoRAIL still produces audio output suitable for background music levels, and the Auto Power Down (APD) mode can be engaged to further reduce power consumption to less than a watt when there is no signal present for extended periods.

• Line input single cable solution for easy installation
  The single cable installation feature is compatible with AES72‑1E (RJ45 connectors) wired devices. This solution provides easy installation for all four channels of the V600:4 / both channels of the V600:2 without needing to wire all the connections individually.

• Advanced Protection features and PFC to ensure reliability
  Equipped with a PFC power supply and protection features usually reserved for the professional power amplifiers, means that the amplifier resists complete shutdown situations and will always perform at its best under all conditions.

General installation procedures

Before starting installation, ensure the following:

• You make use of manufacturer-specified installation materials.
• No liquids can spill into or on the products.
• Installation is in a clean environment free of dust.
• The ventilation airflow of the 19″ units is not obstructed.
• There is a mains power outlet of sufficient rating close to the intended location of the products.
• Sufficient free space and access at the rear of the 19″ units for connectors and wiring.

Unpacking
The products should be unpacked and handled with care. If an item appears to be damaged,notify the shipper immediately. If any items are missing, notify your Dynacord representative.
The original packaging is the safest container in which to transport products and can also be used to return products for service, if necessary.

Parts included

Dimensions

Mounting and ventilation

Notice!
Before mounting the device, it is recommended to make the required settings. See Indicators, controls and settings, page 25.

V600:4
19”-rack mounting
The V600:4 power amplifier has been designed for installation in a conventional 19”‑equipment rack. Attach the power amp with its frontal rack mount ears using four screws and washers as shown in the illustration.

Additionally securing the amplifier by rack rails might be necessary in case you intend to transport the rack. Failure to do so may result in damage to the power amplifier as well as to the rack case.

Tabletop use
If you want to use this device outside a 19”‑rack on a tabletop, dismount the rack mount ears, reattach the screws back into the device and mount the four self‑adhesive rubber feet on the bottom of the device.

V600:2
The V600:2 amplifier has four mounting options.

Stand-alone mounting in a 19”-rack
Despite being half the size of the V600:4, the V600:2 power amplifier can be fitted alone in a standard 19″-rack.
Mount one short rack ear to the preferred side of the amplifier using the built-in screws. Unscrew the existent screws, attach the rack ear and screw them back in.
Mount the long rack ear (B) on the opposite side by unscrewing the existent screws on the side of the amplifier, attaching the long ear and screwing them back in (1).
Attach the power amp with its frontal rack mount ears (short and long) (C) using four screws and washers (2) as shown in the illustration.

Side-by-side mounting in a 19″-rack
If you intend to use the full 19″-rack, you can stack two V600:2 amplifiers in one rack slot. To install both amplifiers in a side-by-side configuration:

1. Mount the one short rack ear to one side of one amplifier using the existent screws (C). Unscrew the existent screws, attach the rack ear and screw them back in.
   Do this for both amplifiers. The two short rack ears must be in opposite sides.

2. Mount the center connecting plate. Unscrew the four existent screws, attach the connecting plate and screw them back in (D) as shown in the illustration.

3. Once the connecting plate is attached to one amplifier, align the four holes in the side of the amplifier with the four hooks (1) and slide the other amplifier until the two amplifiers hook together (2). To prevent pushback of the amplifiers, screw in the supplied M3 bolt (3) into the screw hole on the back of the amplifier as shown in the illustration.

4. Attach the power amplifier with its frontal rack mount ears using four screws and washers as shown in the illustration.

Tabletop use (over and under the table)
You can use this device outside a 19”‑rack on a tabletop, mounted over or under the table. For under the table mounting:

1. Stick the supplied rubber feet in the corners of the device top surface for more stability with this type of installation (F).
   Place the rubber feet in the edges of the lid so that they are not on top of the labels. For the correct position, refer to the Quick installation guide of the product.

2. Align the short rack ears with the side screws of the amplifier (C). Unscrew the existent screws, attach the rack ear and screw them back in (1).

3. Secure the device by screwing the rack ears to the table as shown in the illustration (2).

For tabletop mounting:

1. Stick the supplied rubber feet in the corners of the device bottom surface for more stability with this type of installation (F).
   For the correct position, refer to the Quick installation guide of the product.

2. Align the short rack ears with the side screws of the amplifier (C). Unscrew the existent screws, attach the rack ear and screw them back in (1).

3. Secure the device by screwing the rack ears to the table as shown in the illustration (2).

Ventilation (for all models)
The airflow direction is side-to-rear. In general, setting up or mounting the power amplifier has to be done in a way that fresh air can enter unhindered at the side and exhausted air can exit at the rear. When installing the power amp in a case or rack system, attention should be paid to these details to provide sufficient ventilation.

• Allow for an air duct of at least 60 mm between the rear panel of the power amplifier and the inner wall of the cabinet/rack case.
• Make sure that the duct reaches up to the cabinets or the rack case’s top ventilation louvers.
• Leave room of at least 100 mm above the cabinet/rack case for ventilation. Since temperatures inside of the cabinet/rack case can easily rise up to 40 °C during operation of the power amp, it is mandatory to bear in mind the maximum allowable ambient temperature for all other appliances installed in the same cabinet/rack case.

Caution!
Blocking/closing the power amp’s ventilation louvers is not permissible. Without sufficient cooling/ventilation, the power amplifier may enter protect mode.
Keep ventilation louvers free from dust to ensure unhindered airflow.

Notice!
Do not use the power amplifier in direct sunlight or near heat sources, like heater blowers, stoves, or any other heat-radiating devices.

For fixed amplifier installations in a device control room that incorporate a central air‑cooling system or air conditioners, calculating the maximum heat emission may be necessary. See also Mains operation and resulting temperature, page 23.

Fan cooling
The device is designed for desktop operation without the need to run the fan, using convection cooling. This ensures silent running in most conditions.
The temperature of the power amp’s channels are supervised and monitored, as well as the power supply and control unit section. These parameters determine the fan activation to prevent output limiting from occurring.
The fan has two optimized performance levels for low and high and use the same criteria to determine the appropriate level of force cooling required.
The rotation of the fan is supervised. In case of a lock condition where the fan is not rotating, this is indicated with flashing warning LEDs on the front panel and the Fault relay. However, even in such a condition the amplifier will operate without switch‑off or reduction if supervised and monitored levels are within the range of silent running parameters.

Mains operation and resulting temperature
The power drawn from the mains network is converted into output power to feed the connected loudspeaker systems and into heat. The difference between power consumption and dispensed power is called power dissipation (Pd). The amount of heat resulting from power dissipation might remain inside of a rack‑shelf and needs to be diverted using appropriate measures.
Mains operation and resulting temperature tables allow the determination of power supply and cabling requirements. The tables are meant as auxiliary means for calculating temperatures inside of a rack-shelf system/cabinet and the ventilation efforts necessary. The column Pd lists the leakage power in relation to different operational states. The column BTU/hr lists the dispensed heat amount per hour.

Mains voltage = 120 V

V600:4| U mains [V]| I mains [A]| P mains [W]| P out [W]| P d

[W] (3)

| BTU/hr (2)
---|---|---|---|---|---|---
Standby| 120| 0.07| <1.0| 0| 0.60| <3.4
ecoRAIL mode (incl. Idle)| 120| 0.25| <20.0| 0| 19| <68
1/8 Max. Output Power Pink noise (1)| 120| 2.1| 128| 4 x 19| 52| 178
1/3 Max. Output Power Pink noise (1)| 120| 4.1| 298| 4 x 50| 98| 335
1/8 Max. Output Power 1 kHz| 120| 2.3| 118| 4 x 19| 42| 144
1/3 Max. Output Power 1 kHz| 120| 3.8| 283| 4 x 50| 83| 283
V600:2| U mains [V]| I mains [A]| P mains [W]| P out [W]| P d

[W] (3)

| BTU/hr (2)
---|---|---|---|---|---|---
Standby| 120| 0.07| <1.0| 0| 0.53| <3.4
ecoRAIL mode (incl. Idle)| 120| 0.16| <12.0| 0| 11| <41
1/8 Max. Output Power Pink noise (1)| 120| 1.9| 112| 2 x 38| 36| 123
1/3 Max. Output Power Pink noise (1)| 120| 3.3| 265| 2 x 100| 65| 222
1/8 Max. Output Power 1 kHz| 120| 1.0| 106| 2 x 38| 30| 103
1/3 Max. Output Power 1 kHz| 120| 3.3| 265| 2 x 100| 65| 222

Mains voltage = 230 V

V600:4| U mains

[V] (4)

| I mains [A]| P mains [W]| P out [W]| P d

[W] (3)

| BTU/hr (2)
---|---|---|---|---|---|---
Standby| 230| 0.12| <1.0| 0| 0.97| <3.4
ecoRAIL mode (incl. Idle)| 230| 0.23| <20.0| 0| 19| <68
1/8 Max. Output Power Pink noise (1)| 230| 1.2| 125| 4 x 19| 49| 167
1/3 Max. Output Power Pink noise (1)| 230| 1.7| 280| 4 x 50| 80| 273
1/8 Max. Output Power 1 kHz| 230| 0.9| 115| 4 x 19| 39| 133
1/3 Max. Output Power 1 kHz| 230| 2.0| 265| 4 x 50| 65| 222
V600:2| U mains

[V] (4)

| I mains [A]| P mains [W]| P out [W]| P d

[W] (3)

| BTU/hr (2)
---|---|---|---|---|---|---
Standby| 230| 0.12| <1.0| 0| 0.77| <3.4
ecoRAIL mode (incl. Idle)| 230| 0.16| <12| 0| 11| <41
1/8 Max. Output Power Pink noise (1)| 230| 0.7| 112| 2 x 38| 36| 123
1/3 Max. Output Power Pink noise (1)| 230| 1.5| 265| 2 x 100| 65| 222
1/8 Max. Output Power 1 kHz| 230| 0.7| 112| 2 x 38| 36| 123
1/3 Max. Output Power 1 kHz| 230| 1.6| 267| 2 x 100| 67| 228

• (1) Pink Noise according IEC 60268‑1
• (2) 1 BTU = 1055.06 J = 1055.06 Ws
• (3) Pd = Power dissipation
• (4) The following factors can be used for easy conversion of mains current:
  • 100 V = 2.3
  • 240 V = 0.96
• Nominal operating condition according to IEC 62368-1 (1/8 rated output power modulated with 1 kHz)

Installation

• Indicators, controls and settings, page 25
• Connections, page 31

Indicators, controls and settings

| LED| Indicator description| Color
---|---|---|---
A| ****| Device/channel fault (CH1-4)| Red
B| LIMIT| Over driven channel (CH1-4)| Yellow
C| SIGNAL| Input signal present (CH1-4)| Green
D| | Power On/Off amplifier| Green is ON

Blue is ecoRAIL active, or Auto Power Down (APD) active

| Description
---|---
1| AC mains input socket
2| Fault relay (FLT RDY) contacts and REMOTE ON control input socket
3| AMP MODE (CH1/CH2, CH3/CH4) and DUAL-PARALLEL DIP‑switches
4| FILTER (CH1/CH2, CH3/CH4), APD switches (IN1 to ALL DIP‑switches in V600:4)
5| LEVEL control (CH1-4)
6| Line level audio inputs socket (CH1/CH2, CH3/CH4)
7| Line input / through RJ45 socket (parallel to Euroblock input sockets)
8| Loudspeaker OUTPUTS socket (CH1/CH2, CH3/CH4)

Set the output mode (AMP MODE)

100 Volt and 70 Volt direct drive modes
The use of either the 70 V or 100 V modes allow connection of high impedance (HZ) loudspeaker lines without using output transformers (direct drive). In this case the maximum number of loudspeakers connected to an output channel is only limited by the amplifier channel output power.
It is recommended that this mode should be used if the distance between amplifier and speaker is larger than 50 m of cable distance (approx. 150 ft) and/or a high number of speakers with transformers are used.
When 100 V or 70 V is selected a 50 Hz High Pass filter is automatically activated to reduce the possibility of loudspeaker transformer saturation to ensure the best performance.

8 Ω mode
In 8 Ω mode the power amplifier reaches rated output power having a load of 8 Ω connected.

4 Ω mode
In 4 Ω mode the power amplifier reaches the rated output having a load of 4 Ω connected (e.g. one 4 Ω speaker or two 8 Ω speakers in parallel). These configurations can be driven by each amplifier channel. This mode usually used if multiple speakers with medium or low‑power rating are driven in low impedance mode (LZ).

Refer to
– Indicators, controls and settings, page 25

Set the input routing (DUAL / PARALLEL / IN1 to ALL)
DUAL and PARALLEL modes are selected for channels 1‑2 and separately for channels 3‑4, using the DIP switch in the Up position for “DUAL” mode or the Down position for “PARALLEL” mode. IN1 to ALL affects all channels. If IN1 to ALL is active, it overrides the setting of DUAL/PARALLEL switch.

DUAL mode
In DUAL mode, the two adjacent channels controlled via the DIP‑switch are completely independent from each other. Using the input level controls on the power amp’s rear panel allows independently adjusting the channels’ amplification.

PARALLEL mode
In PARALLEL mode, the inputs of the channels CH1‑2 and/or CH3‑4 are directly linked. The audio signal has to be applied to the input connectors of either CH1 resp. CH3. Input level control for CH1 controls CH1 and CH2 at the same time. Respectively level control CH3 affects CH3 and CH4..

IN1 to ALL (V600:4 only)
IN1 to ALL allows the use of input 1 to be sent to all amplifier channels. IN1 to ALL is configured as either ON or OFF using the IN1 to ALL DIP switch at the rear of the device.
Level control CH1 affects the volume of all output channels at the same time.

Refer to
– Indicators, controls and settings, page 25

Set the loudspeaker parameters (FILTER)
The amplifier’s FILTER settings enable the output audio to be optimized to suit particular types of speakers (e.g. subwoofers) or particular environments, allowing some optimization for voice/speech by reducing the low- frequency feedback.

• HP100
  The HP100 implements a high-pass filter with a 24 dB/Oct slope at 100 Hz within the signal path. It is particularly suited for speech and voice announcements, as it effectively attenuates undesirable low-frequency signals, such as microphone handling noise.

• HP150
  The HP150 implements a high-pass filter with a 24 dB/Oct slope at 150 Hz within the signal path. Designed for implementation in a 2-way system, working in conjunction with a compatible subwoofer to further diminish low-frequency content. This configuration is especially useful for applications involving paging horns and very small ceiling speakers, where minimizing low-frequency content is desirable.

• LP150
  The LP150 implements a low-pass filter with a 24 dB/Oct slope at 150 Hz within the signal path. It is intended for use in conjunction with a subwoofer, utilizing the HP150 settings to drive matching speakers.

• FLAT is suitable for full-range operation. However, for 4 and 8 Ohm operation, a 30 Hz high-pass filter (with a slope of 24 dB/Oct) is applied in the signal path to attenuate extremely low-frequency noise. In the case of 70 V and 100 V operation, this high-pass filter is set at 50 Hz to avoid transformer saturation.

The APD (Auto Power Down) automatically places the amplifier into a low power standby mode after a period of inactivity when signal, such as a music source, is not present for an extended period.
The threshold level of the APD is -45 dBu* and will automatically activate standby if the signal is constantly below this level for 25 min across all inputs.

The amplifier is woken from APD to full activity by:

• Signal source (music) above -40 dBu threshold.
• Pressing the front panel power button.
• If configured, Remote ON wakes the amplifier from APD through a remote button.

APD is configured as either ON or OFF using the APD DIP switch at the rear of the device.

*Activation level depends on several variables including the level controller position.
-45 dBu is an estimate based on a 0 dB position of the level control.

Notice!
For activating the device all input channels are monitored, regardless of routing switches or level setting.

ecoRAIL
ecoRAIL is a dedicated low‑voltage rail supply in the amplifier that significantly reduces power consumption and increases power efficiency. ecoRAIL is permanently configured, so there is no need to activate or set up this function.

Connections

• Audio inputs, page 31
• Line input RJ45, page 33
• Power outputs, page 34
• Ready/Fault relay, page 35
• Remote on, page 36
• Mains power, page 36

Audio inputs
Audio input connectors are either Euroblock type for 2‑channels per connector, or 4‑channels via the line input RJ45 connector. Both connections are in parallel, meaning they can be either used to input signal or to loop through.

Euroblock inputs
Euroblock inputs are electronically balanced. Whenever possible, using balanced audio signal feeds at the input of the power amplifier is always preferred. Unbalanced connections should only be used if the cables are very short and no interfering signals are to be expected in the vicinity of the power amplifier. In this case, bridging the screen (shielding) and the pin of the inverting input inside of the connector is mandatory. Otherwise, a 6 dB drop in level, hum and hiss noise could result. Due to their immunity against external interference sources, such as dimmers, mains connections, HF-control lines, etc., using balanced cabling and connections is always preferable.

Notice!
You must flip over the Euroblock input connector when inserting the connector to the device (screw holes of the terminal block facing downwards).

The pin out is labeled on the rear of the amplifier.

Line input RJ45
The line input RJ45 connection can be used for an input of four (V600:4) resp. two (V600:2) audio channels via a single cable, or as audio output/through when the Euroblock inputs are in use. This allows one set of inputs from the Euroblock connections to go to another amplifier. The pin out is compatible with any AES72‑1E device.

• Compatible with standard CAT5e or CAT6 wiring. It is recommended to use a quality shielded STP cable for increased distances over 5 m to 25 m to reduce audio and signal degradation by maintaining balanced signal.

The wiring of AES72-1E is below.

Caution!
Do not connect the line input RJ45 with Ethernet, CAN bus, Call station, or even PoE-powered ports!
Noise can occur which may damage speakers or the amplifier.

Power outputs
The output connectors are 2 Euroblock type for 2‑channels per connector. This allows an easy pre‑wiring of the cables outside the rack and a fast – one connection for multiple channels at once, without the danger of wiring errors.

Warning!
It is not allowed to interconnect terminals of different channels!

Caution!
For compliance to UL 62368‑1 and CAN/CSA C22.2 No. 62368‑1 all loudspeaker wiring must be Class 2 wiring (CL2); this requirement does not apply for compliance to EN/ IEC 62368‑1.

Caution!
Amplifier outputs may carry output voltages up to 100 VRMS. Touching uninsulated terminals or wiring may result in an unpleasant sensation. The external wiring of these terminals requires installation by an instructed person.

Ready/Fault relay
The Ready/Fault relay is a potential free relay toggle for READY or FAULT indication. This allows the amplifier to notify an external device or indicator that the amplifier status is either “RDY” (all is ok) or “FLT” (fault) and may not be functioning correctly. The next table explains the relay setting for the different operation and error modes.

RDY/FLT: Indicates the closed contact.

Figure A shows the FLT (fault) condition, figure B shows the RDY (all is ok) condition.

Remote on
REMOTE ON provides a simple way to remotely power-on/off the power amplifier. REMOTE ON overrides front panel power button when activated.
This can be used by an external device or a simple switch that can be located away from the amplifier for convenience.

• Leaving the pins of REMOTE ON socket “open” (nothing connected) the device works with the front panel power button.
• See figure A below.
• When connecting the pins, the device is enforced to power on. This overrides the operation of the front power button.
• See figure B below.

To configure the amplifier so that users cannot turn off the device (avoiding user error),simply wire bridge the two pins together, then the front panel power button is permanently overridden.

Mains power
The power amplifier receives its power supply via the MAINS IN connector. Only the provided power cord may be used. The amplifier is equipped with a wide range power supply. Relevant technical data regarding mains power consumption can be found on the product label on the rear‑side of the amplifier.

Notice!
When power is restored, the device will continue in its last known mode of operation.

CAUTION

• During installation, always separate the power amplifier from the mains socket! Only a correctly installed and grounded wall mains outlet must be used.
• The front power button doesn’t disconnect the device from mains. The only way to switch‑off mains entirely is to remove the power plug.

Operation after installation

Power on
The device can be activated by pushing the power button on the front panel. Speaker system switch‑on is delayed by approximately three seconds via output relays, effectively suppressing any possible power‑on noise, which otherwise might be heard through the loudspeakers.

Input level control
Adjustment of amplifier to source.

• Default is middle position. Full clockwise spends additional 6 dB to drive the amplifier even from weak sound sources.

The level control is assigned with the physical input, not the output channels. If routing PARALLEL or IN1 to ALL is used, the level control is same for all channels.

Notice!
The level control of the unused input is ineffective. If however independent level control is desired, the DUAL routing should be used instead and the inputs wired as parallel.

Troubleshooting

Ensure power cord is securely connected to device and check the power from the mains.
Power button LED is continuously blinking.| Start‑up fault.| Contact service agent.
No audio signal (no front panel LED indication).| 1)  Audio input cable has come loose or has not been properly plugged in.

2)  Input source is not sending signal or sufficient signal.

3)  Input level is turned down.

| 1)  Check that the cables for any damage.

Check that the cables are installed and wired correctly. Check that the wires are secured inside the connector, and the connector is fully plugged in and seated securely to the amplifier.

2)  Ensure that the input is turned up.

No audio is coming out of the speakers, but the input LED indication shows there is signal.| 1)  Output speaker cable has come loose or has not been properly plugged in.

2)  Maybe there is a pilot tone present.

| 1)  Check that the cables for any damage.

Check that the cables are installed and wired correctly. Check that the wires are secured inside the connector, and the connector is fully plugged in and seated securely to the amplifier.

2)  Pilot tone will usually not be audible, but the amplifier is still working correctly.

Audio sounds distorted.| 1)  Input level is too high or too low.

2)  Clipping of input stage.

3)  Music source is of poor quality.

4)  The amplifier is being overdriven by exceeding the max. output allowed (i.e. drained powerTANK).

| 1)  Ensure that the source level is not too high or too low. This could mean re‑adjusting the level on the amplifier.

2)  Check the quality of source material.

3)  Turn down or consider a bigger amplifier.

Audio sounds very muffled or lacks low frequencies.| Incorrect speaker settings are activated (e.g. LP used with a full range speaker).| Adjust the speaker settings on the rear of the device and ensure that the settings match they types of speakers
| | used.

See Set the loudspeaker parameters (FILTER) , page 29.

---|---|---
Weak sound output, but with no fault indications.| Incorrectly wired input connectors.| Ensure that the input cables are correctly match to the polarity of the source (i.e. wired correctly).

See Audio inputs , page 31.

Hum and hiss noise.| Interference on inputs due to unbalance cables or incorrect connections.| Suggest using balanced input cable wiring.

See Audio inputs , page 31.

Fault LED on the amplifier channel is indicating solid red.| 1)  Speaker cable has a short or the cable is damaged.

2)  incorrect AMP MODE selected.

3)  Internal amplifier channel malfunction.

| 1)  Check or replace speaker cables and ensure that connections are wired correctly.

2)  Select the appropriate AMP MODE for your speakers.

See Set the output mode (AMP MODE) , page 27.

3)  Contact service agent.

APD has been activated, but the amplifier is not going into standby mode.| 1) Possible unintended signal or interference on the input.

2)  Signal could be present on an unused channel from the desired signal routing.

| Check that there are no unintended signals on any inputs (including ground loop interference).
Amplifier does not wake up from APD.| Input source level is too low.| Ensure that the input source is active and delivering sufficient signal to the amplifier.
ecoRAIL is not activating as expected.| Volume is set too high.| Lower the volume, or consider more sensitive speakers which will deliver higher volume with ecoRAIL engaged.
Amplifier is working, but all the red LEDs are flashing every 2 seconds and the relay is showing a fault status.| Fan error.| Check blockages or if something is caught in the fan.
Output power is reducing, and LIMIT LED is illuminating.| Amplifier is under extreme thermal conditions, well beyond operating specifications of 45 ℃.| Consider changing the location of the amplifier and check that there is sufficient airflow around the amplifier.
---|---|---

Maintenance

This product has been designed to operate without problems for a long period of time, with a minimum of maintenance.

In order to guarantee trouble-free operation periodically:

• Clean all units with a damp, lint‑free cloth; never use water or chemicals.
• Vacuum the air vents to ensure good ventilation.
• Check all cable connections for corrosion and the screw terminals to make sure that they have not become loosened.
• Check the ground (PE) connection of the system components.

Technical data

V600:4
Electrical

THD+N

(1/8 rated output power, 1 kHz)

| < 0.1 %
Crosstalk

(ref. 1 kHz, 12 dB below maximum)

| < -70 dB| < -75 dB| < -90 dB| < -95 dB
Frequency response2

(ref. 1 kHz, analog in to speaker out, -3 dB)

| HP: 30/100/150 Hz to

20 kHz

LP: 30 Hz to 150 Hz

| HP: 50/100/150 Hz to

20 kHz

LP: 50 Hz to 150 Hz

Damping factor

(30/50 Hz to 1 kHz, ref. to rated impedance)

| > 80| > 160| > 500| > 1000
Output stage topology| Class D, fixed frequency
Signal to noise ratio (A‑weighted, ref. to rated output power, LEVEL 0 dB)| > 98 dB| > 100 dB| > 101 dB| > 103 dB
Output noise

(A-weighted, LEVEL 0 dB)

| < -68 dBu| < -67 dBu| < -62 dBu| < -61 dBu
Connectivity

Analog audio input|
Type| 2 x 6‑pin Euroblock, 3.81 mm, male, parallel 1x RJ45 (AES72-1E)
Maximum input level (LEVEL 0 dB)| +18 dBu
Input impedance, active balanced| 20 kΩ
Mains Input| IEC C14
Loudspeaker output| 2 x 4-pin Euroblock, 5.08 mm, female
Control Port|
Type| 1 x 5‑pin Euroblock, 3.81 mm, male
REMOTE ON| Remote On / Standby contact (overrides power button on front panel)
READY/FAULT| Galvanic isolated relay, max. 30 VDC / 500 mADC
General

Signal processing| Input routing, HPF 24 dB/Oct. selectable 100/150 Hz, LPF 24 dB/ Oct. selectable 150 Hz, Flat, Peak limiter
Power requirements| 100 V to 240 V, 50 Hz to 60 Hz AC
Power consumption|
Consumption at 1/8 rated output power| 115 W
Idle mode (ecoRAIL with no input signal)| < 20 W
Standby mode (APD active)| < 1 W
Power supply topology| Switching power supply with power factor correction
Protections| Audio limiters, high temperature, DC, HF, short circuit, back‑EMF, peak current limiters, inrush current limiters, mains over/under voltage protection
Front status LEDs| Signal, limit, fault LEDs per channel; power LED

Environmental

Climatic conditions

Cooling concept| Convection cooling in tabletop application and rack application with spacing between units. Forced cooling (side to rear) in rack application without spacing between units and in extreme thermal conditions.
Ambient temperature limits| -5 °C to +45 °C

(+23 °F to +113 °F)

Altitude (operating)| -500 m to +5000 m

(-1614 ft to 16404 ft)

Mechanical

Enclosure

IEC Protection class| Class I (grounded)
Dimensions (HxWxD)

With 19” mounting brackets

| ****

44.2 x 483 x 269.5 mm

(1.74 x 19.2 x 10.6 in)

Weight| 3.6 kg (7.9 lb)

1. Test signal for max. output power according IHF‑A‑202 (Dynamic-Headroom, burst 1 kHz /20 ms on / 480 ms off / low level -20 dB)
2. Selectable via Filter.

V600:2
Electrical

THD+N

(1/8 rated output power, 1 kHz)

| < 0.1%
Crosstalk

(ref. 1 kHz, 12 dB below maximum)

| < -70 dB| < -75 dB| < -90 dB| < -95 dB
Frequency response2

(ref. 1 kHz, analog in to speaker out, -3 dB)

| HP: 30/100/150 Hz to

20 kHz

LP: 30 Hz to 150 Hz

| HP: 50/100/150 Hz to

20 kHz

LP: 50 Hz to 150 Hz

Damping factor

(30/50 Hz to 1 kHz, ref. to rated impedance)

| > 75| > 150| > 250| > 500
Output stage topology| Class D, fixed frequency
Signal-to-noise ratio (A‑weighted, ref. to rated output power, LEVEL 0 dB)| > 100 dB| > 102 dB| > 101 dB| > 103 dB
Output noise

(A-weighted, LEVEL 0 dB)

| < -68 dBu| < -67 dBu| < -62 dBu| < -61 dBu
Connectivity

Analog audio input|
Type| 6‑pin Euroblock, 3.81 mm, male, parallel 1x RJ45
---|---
Maximum input level (LEVEL 0 dB)| +18 dBu
Input impedance, active balanced| 20 kΩ
Mains input| IEC C14
Loudspeaker output| 4-pin Euroblock, 5.08 mm, female
Control port|
Type| 5‑pin Euroblock, 3.81 mm, male
REMOTE ON| Remote On / Standby contact (overrides power button on front panel)
READY/FAULT| Galvanic isolated relay, max. 30 VDC / 500 mADC
General

Signal processing| Input routing, HPF 24 dB/Oct. selectable 100/150 Hz, LPF 24 dB/ Oct. selectable 150 Hz, Flat, Peak limiter
Power requirements| 100 V to 240 V, 50 Hz to 60 Hz AC
Power consumption|
Consumption at 1/8 rated output power| 115 W
Idle mode (ecoRAIL with no input signal)| <12 W
Standby mode (APD active)| <1 W
Power supply topology| Switching power supply with power factor correction
Protections| Audio limiters, high temperature, DC, HF, short circuit, back‑EMF, peak current limiters, inrush current limiters, mains over/under voltage protection
Front status LEDs| Signal, limit, fault LEDs per channel; power LED

Environmental

Climatic conditions

Cooling concept| Convection cooling in tabletop application and rack application with spacing between units. Forced
| cooling (side to rear) in rack application without spacing between units and in extreme thermal conditions.
---|---
Ambient temperature limits| -5 °C to +45 °C

(+23 °F to +113 °F)

Altitude (operating)| -500 m to 5000 m

(-1614 ft to 16404 ft)

Mechanical

Enclosure

IEC Protection class| Class I (grounded)
Dimensions (HxWxD)| 44.2 x 218 x 269.5 mm

(1.74 x 8.6 x 10.6 in)

Weight| 2.1 kg (4.6 lb)

1. Test signal for max. output power according IHF‑A‑202 (Dynamic-Headroom, burst 1 kHz /20 ms on / 480 ms off / low level -20 dB)
2. Selectable via Filter.

V600:4 Block diagram

V600:2 Block diagram

Support and academy

Support
Access our support services at www.boschsecurity.com/xc/en/support/.

Bosch Security and Safety Systems offers support in these areas:

• Apps & Tools
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• Warranty
• Troubleshooting
• Repair & Exchange
• Product Security

Bosch Building Technologies Academy
Visit the Bosch Building Technologies Academy website and have access to training courses,video tutorials and documents: www.boschsecurity.com/xc/en/support/training/

Bosch Security Systems B.V.
Torenallee 49
5617 BA Eindhoven
Netherlands
www.dynacord.com
© Bosch Security Systems B.V., 2024

References

• Support | Bosch Security and Safety Systems I Global
• Home | Professional audio engineering – Dynacord
• Repair & Exchange | Bosch Security and Safety Systems I Global
• Trouble Shooting | Bosch Security and Safety Systems I Global
• Warranty & Extension | Bosch Security and Safety Systems I Global

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