LAB GRUPPEN CMA1201_US1 120W Commercial Mixer Amplifier with 4 Inputs (CMA1201

Vendor: Lab Gruppen
LAB GRUPPEN CMA1201_US1 120W Commercial Mixer Amplifier with 4 Inputs (CMA1201) The CMA1201, a 120-watt commercial Mixer Amplifier, is an exceptional solution for commercial and industrial settings seeking top-notch distributed audio while emphasizing...

LAB GRUPPEN CMA1201_US1 120W Commercial Mixer Amplifier with 4 Inputs (CMA1201)

The CMA1201, a 120-watt commercial Mixer Amplifier, is an exceptional solution for commercial and industrial settings seeking top-notch distributed audio while emphasizing energy efficiency and reduced operational costs. With the capability to deliver superior sound across both Low-Z (4/8 Ohm) and High-Z (70/100 V) loudspeaker configurations, this amplifier offers unparalleled flexibility on every channel.

Ease of Installation:

Equipped with rubber feet for versatile placement, the CMA1201 requires no additional installation requirements on desks, shelves, or other clear surfaces. Additionally, it includes optional rack mounting hardware, providing diverse enclosure options for single or paired amplifiers.

Efficient Power Management:

The amplifier features an intelligent power scheme that automatically activates or deactivates based on the input signal, minimizing power consumption during signal absence. This hassle-free system setup requires minimal configuration and can enter sleep mode after 20 minutes of signal inactivity, reactivating promptly upon detecting a signal.

User-Friendly Controls and Connectivity:

The CMA1201 boasts intuitive controls, including easily accessible power buttons, Master volume knobs, Bass/Treble controls, and input/output sockets for balanced or unbalanced sources. These controls are designed for seamless operation, though tool-assisted adjustments are required for Bass/Treble tuning.

Flexible Output Configuration:
Adjacent to the rear panel Euroblock output connector, the amplifier provides intuitive configuration options through dipswitches. These allow the selection of voltage operation (100 V, 70 V, 8 Ω, or 4 Ω) and gain adjustments for maintaining sound integrity, including a high-pass filter for constant voltage systems.

Remote Control Capabilities:

Featuring an RJ45 receptacle, the amplifier enables a wide range of remote control options, such as compatibility with wall controllers like the CRC-V Series and the stylish tabletop controller, the LAB LEVEL. All these devices interconnect seamlessly using affordable Ethernet cabling.

Scalability and Energy Efficiency:

As part of a versatile product family offering single and dual-zone solutions, the CMA1201 serves as a fundamental component for constructing dynamic and scalable audio systems. Its individual zone volume control and remote capabilities contribute to system scalability, while energy-efficient features like Auto Ramp and direct drive constant power technology yield significant energy savings, potentially offsetting costs efficiently.


  • 120 Watt mixer amplifier for commercial and industrial applications
  • Low-Z (4/8 Ohm) and High-Z (70/100 V) operation with a switchable high-pass filter
  • 4 mic/line inputs with individual volume controls
  • Energy efficient design conserves energy and reduces operational cost
  • Individual front panel master volume and bass/treble controls
  • Configurable priority muting function for background music override
  • Direct drive, constant power technology for superior audio performance and reliability
  • GPI remote volume control using standard RJ-45 connector and Ethernet cable
  • Auto Ramp circuitry for quiet and fast power up/down enables real-world energy savings
  • Front panel power control button for direct access
  • Aux output for expansion to additional amplifiers
  • Rack-mountable 1U, half-rack width enclosure with joining brackets for rack, table and wall mounting
  • Euroblock type mic/line input and output connectors
  • Convection-cooled, fan-less amplifier technology for low noise

Maximum Output Power
4 or 8 Ω per channel

120 W

Number of Amplifier Channels


Minimun Load Impedance
4 Ω mode

4 Ω

8 Ω mode

8 Ω

70 V output mode

41 Ω

100 V output mode

82 Ω

Audio Outputs
Amplifier output

2-pin Euroblock connector, stereo

Aux output

3-pin Euroblock connector

Aux output max level

4.88 V (16 dBu)

Audio Inputs
Mic/Line with priority/ ducking input

1 x 5-pin Euroblock connector (channel A)

Mic/Line with summed RCA

3 x 3-pin Euroblock connector, 3 x stereo RCA (channel B, C, D)


Balanced mic/line: 20 kΩ Unbalanced line and RCA: 10 kΩ

Input sensitivity for max amplifier output or nominal (+4 dBu) aux output level

Mic: 0.038 V (-26 dBu)

Balanced: 1.23 V (+4 dBu)

RCA: 0.62 V (-2 dBu) each for mono sum RCA

Maximum input level

4.88 V (+16 dBu)

Microphone phantom power

48 V


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


Load config - (4 Ω / 8 Ω / 70 V / 100 V), switchable 80 Hz high-pass filter, mic/line switch, vox/ducking threshold control, phantom power, input routing (2-channel models only)

Tone Controls

±10 dB @ 100 Hz


±10 dB @ 10 kHz


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

Signal (green LED)

>12.3 mV (-36 dBu)

Fault (red LED)


Signal (green LED)

>-50 dBu

Fault (red LED)

Overheat, DC fault, over current, etc

Limit (red LED)

Output limit

Output circuit type

Class D

Remote connector

1 x RJ45 Ethernet connector

Distortion, 1/8 rated power


Frequency response

20 Hz to 20 kHz, +0.5 / -1 dB

Crosstalk (2 channel models)

>70 dB


>97 dBA

High-pass filter

80 Hz HPF

Circuit Protection

Convection-cooled, fanless

Amplifier protection

Thermal protection, over current protection, DC protection, high frequency protection

Load protection

Controlled start and shutdown behaviour, DC-fault protection

Power Supply, Voltage (Fuse)
Main voltage

100-240 V~, 50/60 Hz


T 3.15 A L 250 V

Power consumption 1/8th rated power@ 4 Ω

50 W

Mains connector

Standard IEC connector

Dimensions / Weight
Dimensions (H x W x D)

44 x 218 x 299 mm (1.8 x 8.6 x 11.8")


2.4 kg (5.3 lbs)


Brushed black anodized aluminum chassis with black painted steel bottom


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