Lab Gruppen CPA2402 - 240W 2-Channel at 4-Ohm Commercial Mixer Amplifier with 8 Inputs and Bluetooth/USB Media Player in Black Finish

The Lab Gruppen CPA2402 is a 240W 2-channel commercial mixer amplifier, designed to provide superior audio quality and exceptional performance for a wide range of commercial and industrial applications. Perfectly suited for environments like bars, restaurants, retail spaces, hotels, corporate offices, educational institutions, and public venues, the CPA2402 ensures high-quality distributed audio and clear announcements. The amplifier supports both Low-Z (4/8 Ohm) and High-Z (70/100 V) loudspeakers, offering flexibility across various speaker configurations. This makes it an ideal solution for background music systems, public address systems, and more complex audio installations.

The CPA2402 integrates modern audio technology with energy efficiency, delivering 240 watts per channel in both 4Ω and 8Ω modes, as well as 70V and 100V output modes. The amplifier's high-pass filter helps maintain sound integrity in constant voltage systems, preventing transformer-enabled loudspeakers from experiencing saturation. Configuration for different output setups is made easy with rear-panel dipswitches, allowing users to quickly select between 4Ω, 8Ω, 70V, or 100V modes for each channel. This flexibility enables seamless integration into a variety of sound systems, whether for large spaces requiring distributed audio or smaller venues needing simple PA solutions.

One of the standout features of the CPA2402 is its modern media capabilities, including Bluetooth streaming and a USB media player. Users can easily stream music directly from any Bluetooth-enabled device such as smartphones, tablets, and laptops, eliminating the need for outdated cables and adapters. Additionally, the USB media player, with its intuitive LCD interface, allows for easy playback of audio files directly from a USB stick. This combination of Bluetooth and USB options ensures that the CPA2402 remains versatile and user-friendly for contemporary audio needs.

With a total of 8 inputs, the CPA2402 is well-equipped for a variety of audio sources. It features 2 x 5-pin Euroblock inputs for priority mic/line sources, 4 x 3-pin Euroblock inputs for additional mic/line audio, and 3 x RCA inputs for unbalanced stereo devices. The balanced mic/line inputs also support 48V phantom power, enabling the use of condenser microphones for high-quality audio capture. Each input has its own volume control, ensuring easy adjustment for different audio sources. The front panel provides individual master volume, bass, and treble controls for precise tuning of the overall sound output, while the intuitive design ensures ease of operation by non-technical personnel.

The CPA2402 is equipped with a priority muting function, automatically lowering the volume of background music when an announcement is made, ensuring that PA messages are clearly heard. This feature is crucial in environments where communication clarity is key, such as in hotels, restaurants, and corporate spaces. The amplifier also includes an auto ramp circuit that powers the unit on or off based on the presence of an input signal, reducing unnecessary energy consumption. If no signal is detected for 20 minutes, the amplifier enters sleep mode and resumes normal operation as soon as it detects an input signal, providing a hassle-free and energy-efficient user experience.

Designed for flexibility, the CPA2402 can be easily installed in a variety of ways. It comes with rubber feet for placement on a desk, shelf, or any flat surface, and it also includes rack-mounting hardware, making it suitable for a 1U, 19" rack enclosure. The compact design allows for mounting in both half-rack and full-rack configurations, or a pair of units can be mounted side-by-side in a single rack space. For additional flexibility, the CPA2402 can also be mounted to a wall or under a table, making it a great choice for installations with limited space.

Additionally, the CPA2402 supports remote control via an RJ-45 Ethernet connector, enabling integration into larger audio systems with remote volume control capabilities. The unit can be controlled using compatible wall controllers such as the CRC-V Series or the LAB.LEVEL tabletop controller, providing a convenient way to manage audio across multiple zones or locations. This feature is especially useful in dynamic and scalable system designs where individual zone volume control is required.

Overall, the Lab Gruppen CPA2402 is a reliable, versatile, and energy-efficient amplifier that delivers high-quality audio in commercial and industrial environments. Whether for simple background music or more complex public address systems, the CPA2402 combines modern connectivity options, intuitive controls, and energy-saving features, making it the ideal choice for a wide range of applications.

Features

• 240W 2-channel commercial mixer amplifier for commercial and industrial applications
• Supports Low-Z (4/8 Ohm) and High-Z (70V/100V) loudspeakers with switchable high-pass filter
• Bluetooth streaming for easy wireless audio playback from smartphones, tablets, and laptops
• USB media player with intuitive LCD navigation for playing audio files from a USB stick
• 8 audio inputs, including 2 x 5-pin Euroblock mic/line inputs with phantom power and 3 x RCA inputs
• Individual volume controls for each input, plus master volume and bass/treble tone adjustments
• Priority muting function for background music override during announcements
• Energy-efficient design with Auto Ramp circuitry for power management and energy savings
• Fanless convection-cooled design for quiet operation
• Rack-mountable 1U, 19" enclosure with mounting hardware for flexible installation
• Remote control capabilities via RJ-45 Ethernet for multi-zone system integration
• CE, RoHS, FCC part 15 Class B approvals for regulatory compliance

Specifications

Maximum Output Power

• 4 Ω or 8 Ω per channel: 240 W

Number of Amplifier Channels

• Number: 2

Minimum 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: 4-pin Euroblock connector, stereo
• Aux output: 2 x 3-pin Euroblock connector
• Aux output max level: 4.88 V (16 dBu)

Audio Inputs

• Mic/Line with priority/ducking input: 2 x 5-pin Euroblock connector (channel A)
• Mic/Line with summed RCA: 4 x 3-pin Euroblock connector, 3 x stereo RCA
• Impedance:
  • 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

Controls

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

• Bass: +10 dB @ 100 Hz
• Treble: +10 dB @ 10 kHz

Indicators

• Power: On (blue), force standby (red), standby (yellow)
• Inputs:
  • Signal (green LED) >12.3 mV (-36 dBu)
  • Fault (red LED)
• Master:
  • Signal (green LED) >-50 dBu
  • Fault (red LED): Overheat, DC fault, over current, etc

Bluetooth

• Frequency range: 2402 - 2480 MHz
• Channel number: 79
• Bluetooth version: 4.2
• Reception range: Up to 15 m (45 ft)
• Output power: 10 dBm
• Supported codec: SBC
• Supported profiles: AVRCP 1.4, A2DP 1.2

USB Drive Requirements

• Type: USB 2.0
• Min capacity: 1.0 GB
• Min speed: 12 MB/s read, 7 MB/s write
• Supported file formats: AAC, WMA, MP3, WAV

System

• Output circuit type: Class D
• Remote connector: 2 x RJ45 Ethernet connector

Performance

• Distortion, 1/8 rated power: <0.5%
• Frequency response: 20 Hz to 20 kHz, +0.5/-2 dB
• Crosstalk (2 channel models): >70 dB
• Signal-to-noise: >95 dB
• High-pass filter: 80 Hz HPF

Circuit Protection

• Cooling: 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 with active power factor correction
• Fuse: T 10 A H 250 V
• Power consumption 1/8th rated power @ 4 Ω: 140 W
• Mains connector: Standard IEC connector

Physical

• Dimensions (HWD): 1.7 x 17.2 x 9.8 inches
• Weight: 7.9 lbs
• Finish: Brushed black anodized aluminum chassis with black painted steel bottom