CLASSIC PRO / CPX4250 4-Channel Power Amplifier

The CLASSIC PRO 4-channel power amplifier CPX4250 delivers powerful, top-class sound in a lightweight body using carefully selected components. Supporting three operating modes—stereo, bridge, and parallel—it offers flexible configuration to suit your sound system. This single unit can drive two main speakers, one monitor speaker, and one subwoofer. Recommended for a wide range of applications, including talk events, dance performances, and live performances.

■Type: 4-channel power amplifier
■Stereo output (4ohms): 370W x4
■Stereo output (8ohms): 250W x4
■Bridged output (8ohms): 740W x2
■Frequency response: 20Hz-20kHz, +0-1dB
■Damping factor: >200
■Input terminal: XLR
■Output terminal: Speakon
■Power consumption: 717W (1/8POWER)
■Dimensions: W48.2 x H8.8 x D27cm (excluding handlebar 3cm, rear rack ear 2.8cm)
■Weight: 15.2kg
■Detailed specifications:
■Total harmonic distortion (THD): <0.5%, 20Hz-20kHz
■Slew rate: >10V/us
■Voltage gain: 29dB
■Signal-to-noise ratio (20Hz-20kHz, A-weighted): >100dB
■Crosstalk: -75dB@1kHz, -58dB@20kHz
■Input sensitivity: 0.775V or 1.4V
■Input impedance: 20kΩ (balanced), 10kΩ (unbalanced)
■Protection circuits: Output short circuit, no load, mute on/off, DC, RF (radio frequency) interference
■Ventilation: Front to rear
■Cooling: Built-in heat sink with forced cooling, variable fan, thermal protection circuit
■Amplification method: Class AB
■Power cable: 1.8m, 2 pin

＜Main features＞
■Sophisticated black panel, 2U Rack mount design
■ Highly efficient heat sink to prevent the amplifier from overheating, variable speed cooling fan
■ High current supply toroidal transformer
■ Excellent signal conversion circuit for clear sound with minimal distortion
■ Supports stereo, bridge and parallel modes
■ Signal and clip indicators on each channel, built-in limiter to protect speakers, ON/OFF mute protection, DC protection, output short circuit protection, overheat protection, RF (high frequency) interference
■ Output mute to protect equipment when protection circuit is activated
■ Simple front panel design with only gay control
■ Uses the latest SMD technology for higher stability and reliability
■ Balanced XLR input/output, Speakon output
■ Depth of 27 cm that can be stored in an effects rack

* When repairing/supporting at our company, we do not generally provide replacement units. In the event of a malfunction, please return the product to us, and we or the manufacturer will handle the issue according to the support regulations.