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  1. Variable 24dB Crossover
  2. DSP-Controlled Preamp
  3. KickEQ+™ 18dB Variable Bass Boost

Kicker KXMA400.4 4-Channel Marine Amplifier (Certified Refurbished)

KXM Amps are built for the outdoors. Power, speaker and input connections are gasket-sealed, as is the control cover hiding the settings, creating a water-resistant barrier to key controls.

The KXM 400-watt four-channel amplifier is flexible enough to be a full system solution, or serve as the power for your mid and high-range speakers. KickEQ+™ delivers as much as an 18dB of extra bump with a simple turn of the knob, and powerful 24dB crossover is also included to letting you quickly tune your system to perfection.


Class D Power Plant
Gain Control With "Optimal Input" Indicator
FIT2™ (Fail-Safe Integration Technology) Circuitry
Variable 24dB Crossover
DSP-Controlled Preamp
KickEQ+™ 18dB Variable Bass Boost
ABYC/NMMA Compliant Power Terminals
Conformal-Coated Circuit Boards
Easy Access to Settings behind Gasket-Sealed Cover Panel
Black Anodized Aluminum Chassis
Top-Mounted Teal LED Light Pipe
Stainless Steel Mounting Hardware Included

Want setup help? Go to KICKER U for a free woofer & amplifier configuration app!

This KXM amplifier delivers up to 100 watts per channel (4 channels driven), or 200 watts into two sets of bridged channels. See below for more details.


RMS Power [Watts]
@ 14.4V, 4Ω stereo, ≤ 1% THD+N: 50 x 4
@ 14.4V, 2Ω stereo, ≤ 1% THD+N: 100 x 4
@ 14.4V, 4Ω bridged mono, ≤ 1% THD+N: 200 x 2

Dimensions [Inches] (L x H x W)
11-3/∕16 x 2-⅛ x 8-5⁄16

Frequency Response [Hz]

Input Sensitivity

Signal-to-Noise Ratio

Selectable Electronic Crossover
Amp 1: OFF/HP/LP; Variable 10–5,000Hz with X10 switch
Amp 2: OFF/HP/LP/BP; Variable HP, 10–500Hz;
Variable LP, 40–5,000Hz with 10X switch
Slope: 24dB/octave

KickEQ™ Bass Boost
0-18dB @ 40Hz

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

CEA Signal-to-Noise Ratio
-75dB CEA-2006B (ref: 1W, A-weighted)

More Information
Product Name Kicker KXMA400.4 4-Channel Marine Amplifier (Certified Refurbished)
Manufacturer Kicker
Manufacturer's Warranty N/A
Manufacture's Warranty 2 N/A
UPC 713034079897
Manufacturer Sku 44KXMA4004-2
Amplifier Channels 4 Channel
RMS Power Output (Watts x Channels) 50 x 4
Power at 2 Ohms (Watts x Channels) 100 x 4
Bridged Power (Watts x Channels) 200 x 2
Minimum Impedance Unbridged 2 Ohm
Minimum Impedance Bridged 4 Ohm
Amplifier Class Class D
Low-Pass Crossover Frequency 40-5000 Hz
High-Pass Crossover Frequency 10-500 Hz