KPX 300.4 Amp front
KPX 300.4 Amp left end panel
KPX 300.4 Amp right end panel
KPX 300.4 Amp three-quarter view
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KPX300.4 Amplifier
KPX Amplifiers are specially designed to deliver tremendous power in a tiny, weather-resistant footprint – without taxing your charging system. Including this handy 4-channel power piece.

Model: 51KPX3004

Big System. Little Amp.

  • Extremely compact footprint
  • Provides power for two- or four-speaker systems
  • Up to 300-plus watts of power
  • Fits under motorcycle fairings
  • Weather-resistant design
  • Built-in crossover controls
  • The KPX300.4 Four-Channel Amplifier is built to power every speaker in your ride. Engineered specifically for motorcycles or space-compromised installs, this weather-resistant amp delivers huge power without getting in your way. Ensuring incredible sonic performance and long speaker life has never been easier with a variable 12dB crossover and independent gains. A wide range of input levels make this amp easy to hook up with virtually any factory or aftermarket radio.

    This KPX300.4 Amplifier delivers as much as 75 watts per channel (4 channels driven), or 150 watts into two sets of bridged channels. See below for details.

Power (watts/ch), 2 Ohm Stereo
Power (watts/ch), 4 Ohm Stereo
Power (watts/ch), 4 Ohm Bridged Mono
**Dynamic Power (watts)
Frequency Response (Hz, +0/-1dB)
60/80/100/120Hz hi-pass, 12dB/octave
KickEQ Bass Boost
Dimensions (in, mm)
W: 3-5/16, 84
H: 1-11/16, 42.7
L: 8-1/2, 216.5
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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since 1973

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