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Brand Kicker
SKU:  44KXA4001
(0 Reviews)

Kicker KXA400.1 400 watt Mono Amplifier

Brand Kicker
SKU:  44KXA4001
(0 Reviews)

Kicker KXA400.1 400 watt Mono Amplifier

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Brand Kicker
SKU:  44KXA4001
(0 Reviews)
Out of Stock

Kicker KXA400.1 400 watt Mono Amplifier



About This Product


Kicker KXA400.1

400 watt Mono Amplifier

This KX 400-watt mono amp is built for big bass in a small, powerful package. It includes FIT2 (Fail-Safe Integration Technology) – giving you superior power, clarity and dependability with nearly any stock or aftermarket radio.

Next Level Knob
A revolutionary wireless remote that goes way beyond a simple bass knob. Control as many as four amplifiers simultaneously, including mono KX amps and the bass channel of the KXA800.5. Monitor and control vital functions of the amp including clipping, gain, phase, bass boost and more.

Test Tones
In any audio system, the goal is to reach maximum input and output levels without distortion or clipping. Sometimes, without expensive or complicated equipment like an oscilloscope, this can be a daunting task for a would-be-audiophile install.

Thankfully, the engineers at KICKER have taken the guesswork, and hassle, out of matching the output voltage of your source unit to the amplifier. To begin, you’ll need to download the KICKER test tones

Power Plant
You want high efficiency, monster wattage and small amp size. One ohm stability* and Class D construction means KICKER® amps fit nearly anywhere, with up to 2,500 watts of bone-shaking power.

*Mono models and subwoofer output of KXA800.5.

Enjoy an enormous 18dB of variable bass boost with KickEQ+™. A simple turn of the knob gives you the extra bump you’ve been looking for.

Use Any Radio
KX Amplifiers come loaded with FIT2™ (Fail-Safe Integration Technology) advanced circuitry for superior clarity and dependability that works with nearly every radio on the planet.

Illuminating Knob
Get the absolute most out of your amp with a specially designed gain control that lights up when the perfect input signal is detected from your radio.

Tuned In
No matter where you mount your KX amp, this easily accessible 24dB crossover lets you quickly tune your system to perfection. To get the most out of your bass, a variable 24dB subsonic filter is also included with mono and five-channel KX amplifiers.

SHOCwave Reveals The Bass
The SHOCwave Bass Restoration processor reveals the depth and power hidden in your digital recordings. This advanced processor is built into all mono and five-channel KX amplifiers, and easily controlled with the wireless KXARC remote (included).


  • Class D Power Plant
  • One-Ohm Stable
  • SHOCwave™ Bass Restoration Processor
  • KXARC Wireless Remote Included
  • Gain Control With "Optimal Input" Indicator.
  • Variable 24dB Subsonic Filter
  • FIT2 (Fail-Safe Integration Technology) Circuitry
  • Variable 24dB Crossover
  • DSP-Controlled Preamp
  • KickEQ+ 18dB Variable Bass Boost
  • Easy Access to Settings Behind Hinged Panel
  • Black Anodized Aluminum Chassis
  • Top-Mounted Red LED Light Pipe
Want setup help? Go to KICKER U for a free woofer & amplifier configuration app!

This KX amplifier delivers as much as 400 watts into one channel. See below for more details.


RMS Power [Watts]

  • @ 14.4V, 4Ω mono, ≤ 1% THD+N : 200 x 1
  • @ 14.4V, 2Ω mono, ≤ 1% THD+N : 400 x 1
  • @ 14.4V, 1Ω mono, ≤ 1% THD+N: TBD

Length [in, cm]

  • 8, 20.4

Height [in, cm]

  • 2-⅛, 5.5

Width [in, cm]

  • 8-5⁄16 , 21

Frequency Response ± 1dB

  • 10Hz–160Hz

Signal-to-Noise Ratio [dB]

  • 95

Input Sensitivity

  • 250mV-10V

Selectable Electronic Crossover

  • Variable Lo-pass 40Hz–160Hz, 24dB/octave

Subsonic Filter

  • Variable 10–80Hz, 24dB/octave

KickEQ+ Parametric Bass Boost (Remote Control Adjustable)

  • Boost - Variable 0-18db
  • Center Frequency - 20Hz-80Hz
  • Bandwidth 1-5

Remote Bass

  • Yes

CEA Power

  • 200 x 1 @ 4 ohms, 14.4VDC, 1% THD, CEA-2006B (Watts)

CEA Signal-to-Noise Ratio

  • -75dB CEA-2006B (ref: 1W, A-weighted)
  • One-Ohm Stable
  • SHOCwave Bass Restoration Processor
  • KXARC Wireless Remote Included
  • Gain Control With "Optimal Input" Indicator



Want to know if this product is compatible with your car? We’ll tell you for free!