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Kicker  48KXMA5004 On Sale

KXMA Series 4-Channel 125W RMS x 4 at 2 Ohms, Class-D Marine Amplifier

Item #78722

Condition:   Brand New

Product Highlights

  • KXMA Series
  • 4-Channel
  • 125W RMS x 4 at 2 Ohms
  • Class-D Marine Amplifier

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$375.96

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Reg. Price $499.99  Save $124.03
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Kicker 48KXMA5004 KXMA Series 125W x 4 at 2Ohms, 500W Max Power Class D 4-Channel Full-Range Marine Amplifier


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We are a Kicker authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?
  • • KXMA Series Class D 4-Channel Full-Range Marine Amplifier
  • • (4) 2" screws
  • • (4) Flat-washers
  • • 3mm Allen key
  • • Amplifier information sheet (Eng/Span/Fren/Ger)
  • • Power chart
  • • Kicker power certification
  • Owner's Manual

 

 

Kicker_KXMA
Marine-Grade Class D Amplifier with Enhanced Bass

Built to withstand the harshest marine environments, this amplifier features REAL MARINE™ construction, including anti-corrosive speaker, power, and RCA terminals, stainless-steel screws, conformal-coated circuit boards, and ABYC/NMMA-compliant power connections for long-lasting durability in saltwater, UV, and humid conditions. Its high-efficiency Class D design delivers clean power to multiple channels without excessive heat or space consumption, while the KickEQ™ Bass Boost offers a variable 0–6 dB enhancement at 40 Hz for deeper, punchier low-end performance.

Precision DSP Marine Amplifier with Advanced Controls

This amplifier features a variable 24 dB crossover for precise high-pass, low-pass, or band-pass tuning, ensuring each speaker performs optimally. The DSP-controlled preamp enhances signal clarity and minimizes distortion for high-fidelity audio, while the gain control with “Gain Match” LED indicator simplifies setup by showing when the input signal is properly matched.

Kicker_KXMA
Kicker_KXMA
Marine Amplifier with Easy Access and Expandable Design

Featuring all controls behind a gasket-sealed cover panel for quick adjustments while protecting internal circuitry, this amplifier combines durability with style through a black anodized aluminum chassis and top-mounted teal LED light pipe. Full-range RCA outputs allow for simple system expansion, and included stainless-steel mounting hardware ensures secure, corrosion-resistant installation.


SPECIFICATIONS


  • Maximum Power : 500 Watts
  • Number of Channels : 4
  • Frequency Response : 10-20000 Hz
  • Built In Crossovers : Yes
  • Amplifier Class : D
  • Fuse Rating : 1x60 A
  • Promo : Yes

FEATURES


Features:

  • Marine-Ready 4-Channel Amplifier: The Kicker KXMA500.4 delivers versatile 4-channel power for marine applications, with 75W x 4 @ 4Ω, 125W x 4 @ 2Ω, or 250W x 2 bridged @ 4Ω. Features marine-grade terminals, stainless-steel screws, conformal-coated circuit boards, and ABYC/NMMA-compliant power and ground connections. Note: Not waterproof—avoid direct water exposure.
  • Efficient Class-D Power: Compact Class-D design provides reliable, high-output performance while drawing less current from your marine power system.
  • Flexible Input Level Selection: 2-position switches allow each channel pair to select High (speaker-level) or Low (line-level) input.
  • Fader Control: On/Off switch determines whether the four channels are fed from 1 or 2 pairs of RCA inputs.
  • Auto Turn-On Options: Three methods for powering the amp: +12V remote (preferred), DC Offset detection from speaker-level inputs, or Audio/Signal Sensing. Using DC Offset or Audio methods converts REM terminal into +12V output for other amps.
  • Protection LED (PRT): Red LED indicates problems—flickering = low voltage; solid = thermal shutdown, shorted output, or voltage outside 10–16V range.
  • Amp 1 Controls: Gain control (125mV–5V Low / 250mV–10V High) with backlit clipping LED, 3-position crossover (Off/HP/LP, 24dB/oct), frequency dial (10–500Hz x1 or 100–5kHz x10), KickEQ+ bass boost (+0–6dB at 40Hz).
  • Amp 2 Controls: Gain control (125mV–5V Low / 250mV–10V High) with clipping LED, 4-position crossover (Off/HP/LP/Bandpass, 24dB/oct), HP frequency dial, LP frequency dial with 2-way range switch, and KickEQ+ bass boost (+0–6dB at 40Hz).
  • Wire Connections: Screw-down terminals for power, ground, REM, and speaker outputs; Power/Ground accepts up to 4 AWG wire, REM/Speaker up to 8 AWG, ABYC/NMMA-compliant.
  • External Fuse Required: No built-in fuse; install a 60A inline fuse on the power wire within 18" of the battery for protection.
  • Input Signal Flexibility: Accepts High (speaker-level) or Low (line-level) input on two RCA pairs; optional Kicker KiSL adapter recommended for speaker-level input. Sensitivity: 125mV–5V (low) / 250mV–10V (high).
  • Line-Out Pass-Thru: Single RCA output pair for connecting additional amplifiers.
  • Dimensions: Width 11.19", Height 2.19", Depth 8.26" (not including wires).

 

Specifications:

  • RMS Power Output (Watts x Channels): 75 x 4
  • Frequency Response at Rated RMS Power: 1k Hz
  • THD at Rated RMS Power: 1%
  • Signal to Noise Ratio: 95 dB
  • Input Voltage: 14.4v
  • Peak Power Output (Watts x Channels): ---
  • Power at 2 Ohms (Watts x Channels): 125 x 4
  • Bridged Power (Watts x Channels): 250 x 2
  • Minimum Impedance Bridged: 4
  • Minimum Impedance Unbridged: 2
  • Amplifier Class: D
  • Low-Pass Crossover Frequency: 10–5kHz & 40–5kHz
  • Low-Pass Slope (dB/octave): 24 dB/octave
  • High-Pass Crossover Frequency: 10–5kHz & 10–500Hz
  • High-Pass Slope (dB/octave): 24 dB/octave
  • Bass Boost: 0–6 dB
  • Bass Boost Frequency: 40 Hz
  • Fan Cooled: No
  • Fuse Rating: 60
  • Speaker Level Inputs: Yes
  • Preamp Outputs: 2
  • Height: 2-1/4 inches
  • Width: 11-1/4 inches
  • Depth: 8-5/16 inches
  • UPC: 713034020622
  • Weight: 7
  • Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.

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  • All my speakers sounds so much better now! Love the power coming from this amp. Way better than the old amp I have before this one.

    ArGee
    2/28/2025

  • Nice amp. Made my speakers sound better after setting it up. I haven't tried it in open waters though so I can't say yet how good really it can be with all the noises coming around. I also hope it won't break that easily just like the amp I got before this.

    Ray
    6/9/2025

  • soundwise, one of the best of I've ever heard. they're not cheap but they're not that expensive too. the price just sits right there. loud, clear, and powerful. has a sturdy build. hope it would reach years before I have to buy a new one

    Marty
    8/5/2025