Electro-Voice CP4000S 2100W Per Channel Class-H Power Amplifier

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SKU: 800549362870 Category: Tags: , Brand:


The power amplification stages of the Electro-Voice CP4000S follow Class-H technology design, i.e. the power amp provides extremely fast, signal dependent operating voltage switching, which, at the time needed, results in doubling the regular supply voltage. Compared to Class-AB power amps, Class-H power amps generate by far less leakage power at identical output. Consequently, reduced leakage power or dissipation is synonymous to less waste heat. In other words: energy is used more efficiently! As a result, installing Class-H power amps within rack shelf systems or cabinets is possible with less space between appliances. In addition to that and despite offering identical output, power consumption is a lot less than in Class-AB operation.

The transmission qualities of CP-Series power amps are simply extraordinary. The new switching power supply technology, completely designed from scratch and the consistent use of Class-H technology provide extensive headroom far above the stated nominal output and conspicuous reduction in leakage power at the same time.

The employed switching power supply combines the headroom advantage of a transformer power amplifier with low weight of a pulsed power supply unit resulting in an improved performance-to-weight ratio. Special attention had been given to high efficiency and interference immunity already in the designing stage with the result that trouble-free operation of CP-Series power amps is possible even in EMV-critical environments.

CP4000S Features

  • High power with advanced Class-H efficiency
  • Ideal for demanding concerts and tours
  • Exceptional dynamic headroom
  • Rugged, compact, and lightweight
  • 2100 W per channel (2 Ω)
  • XLR pass-though input connections
  • Easy connection to bi-amped loudspeakers
  • Switch mode power supply
  • Built-in dynamic limiters
  • Complete protection: thermal, overload, shorts, HF, DC, back-EMF, inrush current
  • Three-stage front-to-rear fans


  • Amplifier Gain: 32 dB
  • Continuous Rated Power (1 kHz, THD 1%) 2Ω: 2100 Watts
  • Continuous Rated Power (1 kHz, THD 1%) 4Ω: 1500 Watts
  • Continuous Rated Power (1 kHz, THD 1%) 8Ω: 900 Watts
  • Continuous Rated Power (20-20 kHz,THD<0,2%) 4Ω: 1200 Watts
  • Continuous Rated Power (20-20 kHz,THD<0,2%) 8Ω: 600 Watts
  • Crosstalk: < -80 dB at 1,000 Hz
  • Electronics Type: Amplifier
  • Frequency Response: 15 – 40,000 Hz
  • Impedance: 2/4/8 Ω
  • Input Impedance (Balanced): 20 kΩ
  • Input Sensitivity: +7dBu
  • Intermodulation Distortion (SMPTE): < 0.02 %
  • Maximum Bridged Output 4Ω: 4200 Watts
  • Maximum Bridged Output 8Ω: 3000 Watts
  • Network Control (IRIS-Net): No
  • Rated output power (*rated load) THD < 0.2%, 20Hz – 20kHz: 1200/600 W 4Ω/8Ω
  • Signal-to-Noise Ratio (A-weighted): 108 dB
  • Slew Rate: 35 V/µs
  • Topology: Class-H
  • Total Harmonic Distortion: < 0.05 %
  • Height: 2RU 88.1 mm (3.47″)
  • Width: 483 mm (19.02″)
  • Depth: 384 mm (15.12″)
  • Weight Net: 8.7 kg (19.18 lbs)