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Hertz Compact Power HCP 2 - Stereo Amplifier


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The Hertz HCP 2 is a stereo, 400W car audio amplifier, designed to expand or modify with maximum easiness the factory system: featuring pre-amplified (Pre-In) inputs as well as high-level (Speaker-In) inputs, for connection with any head units.

All the Hertz Compact Power amplifiers are assembled with high-quality components and feature a complete and by-passable crossover system. The dissipation system is optimized with the heat being transferred to the heat sink and then dissipated through the sides of the amplifier.

With the Hertz HCP 2 high power systems can be realized: settable both in mono, to drive the subwoofer, and together with another amplifier, for more complex systems; it also features a Bass Boost filters (0 ÷ 12 dB) to enhance low frequencies.


  • Compact design built from extruded aluminum heatsink with the top side ensuring effective transfer of the heat.
  • Special balanced high-noise rejection input circuitry on the Pre-In or Speaker-In inputs.
  • Speaker-In (for OEM head units) and RCA-In (for Aftermarket head units) inputs.
  • Selectable ART, Automatic Remote Turn-On/Off function, automatically turns on and off the amplifier when the OEM radio turns on and off (can be enabled/disabled, with only Speaker-In inputs).
  • Power supply featuring multiple winding transformer, Low-ESR 105°C capacitors, AB-Class 2 Ω stable output stage.
  • Pre-outs, also available when using Speaker-In level inputs.
  • Mono operation mode (selectable) to drive a subwoofer or, in combination with a second amplifier, for a powerful dual-mono system.
  • Bass Boost (50 Hz) selectable to 12 dB, to increase the subwoofer punch.
  • Lo-Pass (50 Hz to 500 Hz) and Hi-Pass (80 Hz) 12 dB crossover filters. The Hi-Pass fixed frequency filter ensures optimal coupling with sub amplifier.
  • Selectable full range power outputs.

Technical Specifications

Channel Mode 2 - 1
Output Power (RMS) @ 14.4 VDC 2 Ch: 65 W x 2 (4Ω)
2 Ch: 100 W x 2 (2Ω)
1 Ch: 200 W x 1 (4Ω)







80 Hz @ 12 dB/Oct.



Distortion - THD (100Hz @ 4Ω) 0.01 %
S/N Ratio (A weighted @ 1V) 103 dB
Damping factor (100Hz @ 4Ω) 200
Size mm  215 x 190 x 50

Further Information

Hertz Compact Power HCP 2 - Stereo Amplifier - Tech Sheet

Hertz Compact Power HCP 2 - Stereo Amplifier - User Manual

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