LAB GRUPPEN CPA2401 240W Commercial Mixer Amplifier with 5 Inputs, Bluetooth (CPA2401)

Vendor: Lab Gruppen
LAB GRUPPEN CPA2401 240W Commercial Mixer Amplifier with 5 Inputs, Bluetooth (CPA2401) The CPA2401 sounds like a versatile solution, suitable for various commercial and industrial environments needing high-quality audio distribution. With its flexibility...

LAB GRUPPEN CPA2401 240W Commercial Mixer Amplifier with 5 Inputs, Bluetooth (CPA2401)

The CPA2401 sounds like a versatile solution, suitable for various commercial and industrial environments needing high-quality audio distribution. With its flexibility in accommodating both Low-Z (4/8 Ohm) and High-Z (70/100 V) loudspeaker configurations across every channel, it seems well-suited for venues like bars, restaurants, hotels, corporate spaces, educational facilities, and more. The ease of installation and operation makes it accessible even for non-technical personnel, simplifying its implementation in diverse settings requiring background music or a public address system.

Easy to Hook Up

The CPA2401 sounds technologically advanced, catering to modern music sources with its Bluetooth streaming capability and USB media player. Its flexibility in accepting various inputs, from balanced sources via Euroblock Input to unbalanced stereo sources through RCA cables, allows compatibility with different devices like mixers, audio processors, phones, and computers. Additionally, the provision of Loudspeaker Output via a standard 2-pin Euroblock socket ensures easy connectivity to audio systems or speakers.

Easy to Install

The CPA2401 seems versatile with its placement options. Whether it's for convenient desk or shelf placement using rubber feet or more secure housing within a rack enclosure, its flexibility makes it suitable for various setups. The provision of wall mounting brackets extends its adaptability, allowing it to be fixed to a wall or placed under a table or shelf, catering to different installation needs and spaces.

Automatic Power On/Off

The CPA2401 has a flexible power scheme with seamless and automatic power on/off based on the input signal, which reduces consumption when a signal is not present. With virtually zero configuration required, an energy-smart and hassle-free amplifier system can easily be set up for hands-off operation. If the CPA2401 is powered on but does not receive an input signal for 20 minutes, the system automatically enters sleep mode to reduce power consumption. As soon as the Auto Ramp circuit detects a signal, the system powers on, and normal operation resumes. The amplifier can also be instantly forced into standby mode or awakened via the front panel power button.

Sublimely Simple Controls

CPA2401’s controls are sublimely intuitive, allowing the operator to quickly make adjustments. The front panel power button and Master volume knob are easily accessible, enabling virtually anyone to operate the system. Bass and Treble controls are also available for fine-tuning – but require a tool when making changes.

Output Configuration

The dipswitches next to the Euroblock output connectors seem to offer a straightforward way to configure the outputs on the CPA2401. By allowing the selection of various impedance settings (100 V, 70 V, 8 Ω, or 4 Ω) independently per channel, these switches enable adjustment of both the maximum voltage output and gain for each channel. Additionally, the inclusion of individual control for the built-in high-pass filter is beneficial, especially for constant voltage systems, as it helps prevent saturation in transformer-enabled loudspeakers and ensures sound integrity is maintained.

Expandable Remote Control

The RJ45 receptacle on the rear panel opens up a broad range of remote control options, including the CRC-V Series of wall controllers and a stylish tabletop controller, the LAB.LEVEL. All can be interconnected via inexpensive and readily available Ethernet cabling.

System Scalability

Commercial installs vary widely in scope and often grow and change over time. The CPA2401 is part of a family of products that provides both single and dual-zone products that are perfect for building out a system to any size. With its individual zone volume and remote control capabilities, the CPA2401 is an ideal building block for a dynamic and scalable system solution.

Real-World Energy Savings

The CPA2401 240 Watt Commercial Amplifier makes it easy to bring the highest-quality music and announcements to business and industrial environments in an easy to integrate – and even easier to operate system. Plus, with features such as its Auto Ramp and revolutionary direct drive constant power technology, the energy-efficient CPA2401 can generate enough energy savings to pay for itself in virtually no time at all.


  • 240 Watt mixer amplifier for commercial and industrial applications

  • Low-Z (4/8 Ohm) and High-Z (70/100 V) operation with switchable high-pass filter

  • 3 mic/line inputs plus 2 line inputs each with individual volume controls and output routing

  • High-quality media playback via Bluetooth streaming

  • USB media player with intuitive LCD navigation to play audio files via USB stick

  • Individual front panel master volume and bass/treble controls

  • Configurable priority and chime 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 realworld energy savings

  • Front panel power control button for direct access

  • Aux output for expansion to additional amplifiers

  • Rack-mountable 1U, 19" enclosure with brackets for rack mounting

  • Euroblock type mic/line input and output connectors

  • Convection-cooled, fan-less amplifier technology for low noise

Maximum Output Power
Maximum Output Power 4 or 8 Ω per channel

240 W

Number of Amplifier Channels


Minimun Load Impedance
4 Ω mode

4 Ω

8 Ω mode

8 Ω

70 V output mode

20 Ω

100 V output mode

42 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

2 x 3-pin Euroblock connector, 3 x stereo RCA


Balanced mic/line: 20 kΩ

Unbalanced line and RCA: 10 kΩ

Input sensitivity for max amplifier output or max 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 voltage

48 V


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


Load config - (4 Ω/8 Ω/70 V/100 V), switchable 80 Hz high-pass filter, mic/line switch, vox/ducking threshold control, phantom voltage, 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)

>12.3 mV (-36 dBu): Clip


Signal (green LED): >-50 dBu

Fault (red LED): Overheat, DC fault, over current, etc

Frequency range

2402 - 2480 MHz

Channel number


Bluetooth version


Reception range

Up to 15 m (45 ft)

Output power

10 dBm

Supported codec


Supported profiles

AVRCP 1.4, A2DP 1.2

USB Drive Requirements

USB 2.0

Min capacity

1.0 GB

Min speed

12 MB/s read, 7 MB/s write

Supported file formats


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/-2 dB

Crosstalk (2 channel models)

>70 dB


>95 dB

High-pass filter

80 Hz HPF

Circuit Protection

Convection-cooled, fanless

Amplifier protection

Thermal protection, over current protection, DC protection

Load protection

Controlled start and shutdown behaviour, DC-fault protection

Power Supply, Voltage (Fuse)
Main voltage

100-240 V~, 50/60 Hz


T 6.3 A L 250 V

Power consumption 1/8th rated power @ 4 Ω

60 W

Mains connector

Standard IEC connector

Dimensions (H x W x D)
Dimensions (H x W x D)

44 x 437 x 248 mm (1.7 x 17.2 x 9.8")


3.2 kg (7 lbs)


Brushed black anodized aluminum chassis with black painted steel bottom