• 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
  • Angled view of KICKER KPX300.2 amplifier with ribbed black casing and visible rear connection ports.
  • 51KPX3004 - 300.4
  • 51KPX3004 - 300.4
  • 51KPX3004 - 300.4
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Kicker

Kicker Powersports Amplifier 51KPX3004

Kicker Powersports Amplifier 51KPX3004

$299.99 USD
$299.99 USD
Sale Sold out
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Mei from Wide Open Sound

Wide Open Sound · Curated gear

Kicker Powersports Amplifier 51KPX3004

WOS Pick What this amp does in 10 seconds — expand for full specs.

  • BrandKicker
  • SKU51KPX3004
  • Channels4
Mei says

"Match this amp to your speakers and sub. Wrong power or wiring = weak system — do it once, do it right."

The stuff you'll actually notice
  • 4-channel platform.
Product description

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.

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.

Specifications

MODEL 51KPX3004
Power (watts/ch), 2 Ohm Stereo 75x4
Power (watts/ch), 4 Ohm Stereo 45x4
Power (watts/ch), 4 Ohm Bridged Mono 150x2
**Dynamic Power (watts) 350
Frequency Response (Hz, +0/-1dB) 20-20k
Crossovers 60/80/100/120Hz hi-pass, 12dB/octave
KickEQ Bass Boost n/a
Dimensions (in, mm) W: 3-5/16, 84 H: 1-11/16, 42.7 L: 8-1/2, 216.5
Power breakdown
Inputs, filters & control
Build, wiring & install
Protection & performance
Full specifications
Amplifier
Amp Channels 4
Power ratings
Inputs & filters
Wiring
Weather / environment
Support
Vehicle fitment
Model 51KPX3004
Support & warranty

Need help choosing or installing?

We build indestructible, IP-rated systems for marine, motorcycle, UTV, and automotive. If you want a matched setup, we’ll guide you to the right gear the first time.