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51KPX3004 KICKER KPX 300.4 300W RMS 4x75 Powersports Compact 4 Channel Amplifier

by Kicker
Save 8% Save 8%
Original price $379.99
Original price $379.99 - Original price $379.99
Original price $379.99
Current price $349.99
$349.99 - $349.99
Current price $349.99
🚚 Order within the next 2 hours, 15 minutes for delivery by 24 May, 2024.
in stock

KPX300.4 Amplifier

KPX Amplifiers are specially designed to deliver tremendous power in a tiny, weather-proof footprint – without taxing your charging system. Including this handy 4-channel power piece.

Big System. Little Amp.

    • Extremely compact footprint
    • Provides power for two- or four-speaker systems
    • Up to 300-plus watts of power
    • Fits under H-D fairings
    • Water-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 water-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 a factory radio or aftermarket.

This KPX.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/-3dB)
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, 2175