KICKER KXMA500.4 4x125w 4 Channel 700 Watt Class D Marine Amplifier Boat Amp

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$469.95 $479.95
In stock (4 units), ready to be shipped


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Full One Year Kicker Warranty

KXMA Amps are built for the outdoors. Gain, crossover and bass-boost controls are protected behind a gasket-sealed panel, as is the control cover hiding the settings, creating a water-resistant barrier to key controls.

KXMA500.4 Marine Amplifier

KickEQ™ delivers as much as an 6dB of extra bump with a simple turn of the knob. A powerful 24dB crossover is also included, letting you quickly tune your system to perfection. A full-range RCA output allows you to easily add another amplifier without running new signal cable to your KICKER KMC Media Center.


Class D Amplifier

Gain Control With "Gain Match" LED Indicator

FIT2™ (Fail-safe Integration Technology) Circuitry

Variable 24dB Crossover

DSP-Controlled Preamp

KickEQ™ 6dB 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-and-amp configuration app!

This KXMA amplifier delivers as much as 125 watts into four full-range channels, or 250 watts into two sets of bridged channels. See below for more details.


  • POWER [watts/ch], 2 OHM STEREO 125 x 4
  • POWER [watts/ch], 4 OHM STEREO 75 x 4
  • POWER [watts/ch], 4 OHM BRIDGED MONO:250 x 2
  • DYNAMIC POWER [watts]: 700
  • DIMENSIONS [in] all models 2-1/8H x 8-5/16W x 11-3/16L
  • FREQUENCY RESPONSE [Hz]10-20k, +0/-1dB
  • INPUT SENSITIVITYHigh Level 250mV-10V, Low Level 125mV-5V
  • SIGNAL-TO-NOISE RATIO>95dB, a-weighted, re: rated power
  • (amp 1) 24dB/octave, variable 10-5kHz w/ 10x switch, selectable high pass, low pass or all pass
  • (amp 2) 24dB/octave, variable high pass 10-500Hz, variable low pass 40-5kHz w/10x switch, selectable high pass, low pass, all pass or band pass
  • KickEQ™ BOOST:Variable 0-6dB, centered @ 40Hz (Only on amp 2)
  • Wired Remote Not Included

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