LAB GRUPPEN CM Series Mixer for Commercial and Industrial Applications User Guide

Quick Start Guide

CM Series

CM41/CM82

Mixer for Commercial and Industrial Applications

A54-00002-XXXXX

Important Safety Instructions

CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN!

Terminals marked with this symbol carry electrical current of sufficient magnitude to constitute risk of electric shock. Use only high-quality professional speaker cables with ¼” TS or twist-locking plugs pre-installed. All other installation or modification should be performed only by qualified personnel.

This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure – voltage that may be sufficient to constitute a risk of shock.

This symbol, wherever it appears, alerts you to important operating and maintenance instructions in the accompanying literature. Please read the manual.

Caution
To reduce the risk of electric shock, do not remove the top cover (or the rear section). No user serviceable parts inside. Refer servicing to qualified personnel.

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

Caution
These service instructions are for use by qualified service personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operation instructions. Repairs have to be performed by qualified service personnel.

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 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 are 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. Use only attachments/accessories specified by the manufacturer.

12. Use only with the 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. The apparatus shall be connected to a MAINS socket outlet with a protective earthing connection.

16. Where the MAINS plug or an appliance coupler is used as the disconnect device, the disconnect device shall remain readily operable.

17. Correct disposal of this product: This symbol indicates that this product must not be disposed of with household waste, according to the WEEE Directive (2012/19/EU) and your national law. This product should be taken to a collection center licensed for the recycling of waste electrical and electronic equipment (EEE). The mishandling of this type of waste could have a possible negative impact on the environment and human health due to potentially hazardous substances that are generally associated with EEE. At the same time, your cooperation in the correct disposal of this product will contribute to the efficient use of natural resources. For more information about where you can take your waste equipment for recycling, please contact your local city office, or your household waste collection service.

18. Do not install in a confined space, such as a book case or similar unit.

19. Do not place naked flame sources, such as lighted candles, on the apparatus.

20. Please keep the environmental aspects of battery disposal in mind. Batteries must be disposed-of at a battery collection point.

21. Use this apparatus in tropical and/or moderate climates.

LEGAL DISCLAIMER

Music Tribe accepts no liability for any loss which may be suffered by any person who relies either wholly or in part upon any description, photograph, or statement contained herein. Technical specifications, appearances and other information are subject to change without notice. All trademarks are the property of their respective owners. Midas, Klark Teknik, Lab Gruppen, Lake, Tannoy, Turbosound, TC Electronic, TC Helicon, Behringer, Bugera, Auratone and Coolaudio are trademarks or registered trademarks of Music Tribe Global Brands Ltd. © Music Tribe Global Brands Ltd. 2020 All rights reserved.

LIMITED WARRANTY

For the applicable warranty terms and conditions and additional information regarding Music Tribe’s Limited Warranty, please see complete details online at musictribe.com/warranty.

CM Series Hook up

Hook-Up

1. Loudspeakers
2. Amplifier
3. Remote
4. Analog Mixer
5. Paging microphone
6. Tuner
7. MP3 Player
8. DVD Player

CM Series Controls

Controls

(1) INPUT VOLUME – Adjusts the volume of the various audio sources. Each channel has an associated LED that will light green to indicate active signal, and light red to indicate clipping.

(2) EQ KNOBS – Adjusts the bass and treble for the master output(s).

(3) MASTER VOLUME – Controls the overall output level. The associated LED(s) will light green to indicate active signal, and light red to indicate amplifier limiting/protection.

(4) POWER BUTTON – Turns the unit on and off. The LED will indicate power status.

(5) MAINS CONNECTOR – Connect the IEC cable to a mains outlet.

(6) OUTPUT – Send the mixed audio to a power amplifier.

(7) REMOTE – Allows the connection of an external volume control module per channel. CRC-V series of wall controllers are available as separate accessories.

(8) INPUT ROUTING – Controls the routing and phantom power for each channel. (CM82 only)

(9) 48 V SWITCH – Sends 48 V of phantom power to any Euroblock inputs set to MIC. (CM41 only)

(10) EUROBLOCK INPUT – Accepts 3-pin Euroblock connectors for balanced mic or line-level sources.

(11) MIC/LINE SWITCH – Optimizes the input gain for mic or line-level sources.

(12) RCA INPUTS – Allows the connection of stereo unbalanced sources, which will be summed to mono.

(13) PRIORITY – Additional 2 pins that activate the priority function when shorted together.

(14) VOX KNOB – Sets the input level that will engage the priority ducking function.

CM Series Getting Started

Rack Mounting

The CM series amplifiers come with rubber feet that enable the amps to be placed on a clear surface without an additional installation. However, optional rack mounting hardware is also supplied, allowing several models to be housed and protected inside a 19″ rack enclosure. Follow these steps to attach the mounting hardware.

A pair of CM41 units can be mounted side-by-side to occupy a single rack space. Attach the coupling plate to the underside of 2 CMA1201 units using the included screws. Alternatively, a single CMA1201 unit can be installed in the rack using the long angle bracket..

Attach the front angle brackets to either side of a CM82 unit, or a pair of CM41 units that have been coupled..

If your rack has rear rails, attach the rear flat brackets with the included screws.

Mount the CM unit(s) into the rack by attaching 4 rack screws through the front angle brackets and rack rails.

Hold one of the rear angle brackets up to the rear rack rails so that it lines up next to the rear flat bracket. Do not attach it to the rear rails yet.

Insert the included shoulder screw through the slot in the rear flat bracket and into one of the threaded holes in the rear angle bracket. The screw should allow the rear angle bracket to slide forward and back within the flat bracket’s slot.

Repeat the process for the other rear angle bracket.

Mount the rear angle brackets to the rear rack rails using 4 standard rack screws.

Tighten the shoulder screw if necessary.

Standard rack screw: M4 x 8 mm.

Connections

For balanced or microphone input connections, use a 3-pole cable (hot, cold, ground) wired to a Euroblock connector. Alternatively, RCA cables can be connected for unbalanced stereo sources, but the RCA and Euroblock inputs should not be used together on the same input. Note that stereo signals will be summed to mono.

Output signals use the same Euroblock connector as the inputs.

3-Pin Euroblock Connector – Input / Output

1. hot (+)
2. cold (-)
3. ground/shield

Input Routing

For CM82 units, the routing of inputs to outputs can be controlled with the input routing dipswitches. By default (switches down), Inputs A-D are routed to Output A and Inputs E-H are routed to Output B. However, for sources that should be sent to both outputs, the corresponding dipswitch can be engaged to route an input to the other output channel as well. This is useful, for example, to send background music or paging messages to both zones/sections of a building but maintain other sources local to each zone.

Phantom power (48 V) can also be supplied to channels A-D and E-H independently by engaging the corresponding dipswitch.

Priority and Vox

5-Pin Euroblock Connector – Remote

1. priority 1
2. priority 2
3. ground/shield
4. cold (-)
5. hot (+)

Inputs A and B (Input A only on CM41) have the ability to mute all other channels when the Priority function is activated. Activation is achieved by shorting the 2 Priority pins with a closure switch, often found on paging mics. Alternatively, the activation can also be done by the signal on the prioritized input exceeding a set level(threshold). Turning the VOX knob counterclockwise sets the input level required to engage ducking. Set it so that speaking clearly into the mic exceeds this threshold, but ambient noise is ignored. Turning the VOX knob fully clockwise (OFF) disables this feature. For CM82, the ducking affects all other sources that are routed to the same output as the prioritized input. For example, if Input A is routed also to Output B, Input A will have priority over all other inputs. Input E, however, cannot have priority over the Output A inputs.

Remote

|

RJ-45 Pin

| Color (T568B)| Remote (1 channel products)| Remote A+B| Remote B
---|---|---|---|---|---
| 1| White/ Orange| VCC 10 V| VCC 10 V|

VCC 10 V

2

| Orange| Volume Control| Volume Control Channel A| Volume Control Channel B
3| White/ Green| N/A| Volume Control Channel B|

N/A

8

| Brown| Ground| Ground|

Ground

RJ45 receptacle to connect an optional remote volume control per channel. Use a standard cable to connect the CRC-V accessory, or connect a custom potentiometer with the pinout information. Cable length above 305 m (1000 ft) is not recommended.

Specifications

|

CM82

|

CM41

---|---|---
Mixer
Mixing capability|

8 inputs with configurable routing – 2 outputs

|

4 inputs – 1 output

Audio Inputs
Mic/Line with priority/ducking input|

2 x 5-pin Euroblock connector (channel A, E)

|

1 x 5-pin Euroblock connector (channel A)

Mic/Line with summed RCA| 6 x 3-pin Euroblock connector,
6 x stereo RCA (channel B, C, D, F, G, H)| 3 x 3-pin Euroblock connector,
3 x stereo RCA (channel B, C, D)
Impedance| Balanced mic/line: 12 kΩ ±10%
Unbalanced line and RCA: 7.7 kΩ ±10%
Maximum input level|

4.36 V (+15 dBu)

Microphone phantom power|

48 V

Audio Outputs
Output|

2 x 3-pin Euroblock connector

|

3-pin Euroblock connector

Gain range|

-(infinity sign – +10dB

Output max level|

9.6 V (+22 dBu)

Controls
Front|

Power standby button, input and output gain control, tone controls – bass and treble

Rear|

mic/line switch, vox/ducking threshold control, phantom power, input routing (2-channel models only)

Tone Controls
Bass|

±10 dB @ 100 Hz

Treble|

±10 dB @ 10 kHz

Indicators
Power|

On (blue), force standby (red), standby (yellow)

Inputs

Signal (green LED)|

11 mV (-37 dBu)

Clip (red LED)|

4.36 V (+15 dBu)

Master

Signal (green LED)|

35 mV (-27 dBu)

Limit (red LED)|

3 V (+12 dBu)

System
Remote connector|

2 x RJ45 Ethernet connector

|

1 x RJ45 Ethernet connector

Performance
Distortion|

<0.5%

Frequency response|

20 Hz to 20 kHz, +0.5 / -2 dB

Crosstalk (2 channel models)|

60 dB

Signal-to-noise|

97 dBA

Power Supply, Voltage (Fuse)
Main voltage|

Universal 100-240 V~, 50/60 Hz

Fuse|

T 3.15 A H 250 V

|

T 3.15 A L 250 V

Power consumption|

20 W

|

10 W

Mains connector|

Standard IEC connector

Dimensions / Weight
Dimensions (H x W x D)|

44 x 437 x 248 mm (1.7 x 17.2 x 9.8″)

|

44 x 218 x 299 mm (1.8 x 8.6 x 11.8″)

Weight|

2.4 kg (5.3 lbs)

|

2.1 kg (4.6 lbs)

Finish|

Brushed black anodized aluminum chassis with black painted steel bottom

Approvals|

CE, WEEE, CCC, cTUVus, PSE, RCM, RoHS, FCC part 15 Class B

Other important information

Important information

1. Register online. Please register your new Music Tribe equipment right after you purchase it by visiting labgruppen.com. Registering your purchase using our simple online form helps us to process your repair claims more quickly and efficiently. Also, read the terms and conditions of our warranty, if applicable.

2. Malfunction. Should your Music Tribe Authorized Reseller not be located in your vicinity, you may contact the Music Tribe Authorized Fulfiller for your country listed under “Support” at labgruppen.com. Should your country not be listed, please check if your problem can be dealt with by our “Online Support” which may also be found under “Support” at labgruppen.com. Alternatively, please submit an online warranty claim at labgruppen.com BEFORE returning the product.

3. Power Connections. Before plugging the unit into a power socket, please make sure you are using the correct mains voltage for your particular model. Faulty fuses must be replaced with fuses of the same type and rating without exception.

FEDERAL COMMUNICATIONS COMMISSION COMPLIANCE INFORMATION

Lab Gruppen

MODEL NAME

Responsible Party Name:            Music Tribe Commercial NV Inc.

Address:                                      901 Grier Drive
Las Vegas, NV 89118
USA

Phone Number:                          +1 747 237 5033

MODEL NAME

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. 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.

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:

(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause undesired operation.

Important information:

Changes or modifications to the equipment not expressly approved by Music Tribe can void the user’s authority to use the equipment.

References

• Lab Gruppen | Home
• Music Tribe

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