KPX 500.1 Amp front
KPX 500.1 Amp left end panel
KPX 500.1 Amp right end panel
KPX 500.1 Amp three quarter view
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KPX500.1 Amplifier
The KPX500.1 Mono Amplifier is purpose-built for anyone who needs big power with a tiny footprint.

Model: 51KPX5001

Plenty of Power

  • Extremely compact footprint
  • Dedicated subwoofer amplifier
  • Up to 500-plus watts of power
  • Fits under motorcycle fairings
  • Weather-resistant design
  • Built-in crossover controls
  • CXARC remote bass control compatible
  • Make your bike bump without taxing your charging system. The KPX500.1 Subwoofer Amp features a 24dB/octave variable low pass crossover and 24dB/octave variable subsonic filter to protect your subwoofers and precisely craft your sound. A wide range of input levels lets this amp easily hook up to virtually any factory or aftermarket radio on the market. To control your bass on the go, connect the optional CXARC remote.

    This KPX500.1 Amplifier delivers as much as 500 watts into one channel. See below for details.

Power (watts/ch), 1 Ohm Mono
Power (watts/ch), 2 Ohm Mono
Power (watts/ch), 4 Ohm Mono
**Dynamic Power (watts)
Frequency Response (Hz, +0/-3dB)
40-160Hz variable lo-pass, 24dB/octave; variable subsonic hi-pass 10-40Hz, 24dB/octave
KickEQ Bass Boost
selectable 0/+6dB, centered at 40Hz
Dimensions (in, mm)
W: 3-5/8, 92
H: 1-11/16, 42.7
L: 8-1/2, 217
CXARC Remote capable (sold separately)
When purchased from an Authorized KICKER Dealer or, KICKER warrants this product to be free from defects in material and workmanship under normal use for a period of TWO (2) YEARS from date of original purchase. - Complete warranty information here.

*RMS Power test @ 14.4v @ _ 1% THD+N, Audio Precision analyzer, see for details.

**Dynamic Power test @ 14.4v @ _ 10% THD+N, Audio Precision APx500 analyzer, see for details.



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Technical Support
(405) 624-8583
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(405) 624-8510
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since 1973

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