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The Kicker 48KXMA5004 is a KXM Series marine 4-channel Class D amplifier rated at 500W RMS total, delivering 75W x 4 at 4 ohms, 125W x 4 at 2 ohms, or 250W x 2 bridged at 4 ohms.
Key specifications
- Channels: 4 (bridgeable)
- Amplifier class: D
- RMS power: 75W x 4 @ 4Ω / 125W x 4 @ 2Ω / 250W x 2 @ 4Ω bridged
- Crossover: Variable 24dB, high-pass / band-pass
- Bass boost: KickEQ variable 0 to 6dB at 40Hz (amp 2)
- Turn-on: Signal sensing / DC offset / audio
- Frequency response: 10Hz to 20kHz
- Dimensions: 5.5 x 28.4 x 21 cm
KXM Marine 500W 4 Channel Class D Full-Range Amplifier (48KXMA5004)
The KXMA is built for outdoor use. Gain, crossover and bass-boost controls are protected behind a gasket-sealed panel, creating a water-resistant barrier to key settings.
Kicker's Real Marine standard means this amplifier is purpose-built for marine environments. Every KXMA-Series amp includes anti-corrosive speaker, power and RCA terminals, stainless-steel screws, conformal-coated circuit boards and ABYC/NMMA-compliant power connections. Products are tested to meet or exceed marine industry standards for UV, humidity and saltwater exposure.
KickEQ™ adds up to 6dB of bass boost with a single knob. The variable 24dB crossover lets you tune the system quickly. A full-range RCA output lets you add a second amplifier without running new signal cable to your source unit.
Features
- 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 anodised aluminium chassis
- Top-mounted, teal LED light pipe
- Stainless-steel mounting hardware included
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Specification
| RMS Power @ 14.4V | 75W x 4 @ 4Ω / 125W x 4 @ 2Ω / 250W x 2 @ 4Ω Bridged |
|---|---|
| Output Channels | 4 |
| Voltage (V) | 12 |
| Class | D |
| Features | KickEQ Bass Boost / FIT2 Technology |
| KickEQ™ BOOST | Variable 0-6dB, centered @ 40Hz (Only on amp 2) |
| Waterproof Rating | ASTM B117 200 hr Salt Fog Test Compliant |
| Filter | High-Pass / Band-Pass |
| Amp Turn-On | Signal Sensing / DC Offset / Audio |
| Frequency Response | (Hz) 10-20k |
| Signal-to-Noise Ratio (dB) | 95 |
| Input Channels | 4 |
| Input Type | High Level / Low Level |
| Input Sensitivity Low Level | 125mV-5V |
| Input Sensitivity High Level | 250mV-10V |
| Height (cm) | 5.5 |
| Width (cm) | 28.4 |
| Depth (cm) | 21 |
What's Included
- Kicker 48KXMA5004
Kicker
About the Kicker 48KXMA5004
From our tech experts at CEN
A marine-rated amplifier, 4 channel, rated at 500w RMS, coated to cope with damp and salt air where a car amplifier would corrode.
Who it suits
Boats, ribs and open builds, and anywhere an amplifier is mounted somewhere it will get damp. Campers with outdoor speakers are an increasingly common use.
Our tech experts advise
Mount it somewhere ventilated and as dry as the boat allows, and fuse the feed at the battery. Marine wiring wants tinned cable and sealed joints. get in touch to talk through the install. See car audio installation.
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Frequently Asked Questions
Q: How much power does the Kicker 48KXMA5004 deliver?
A: It delivers 75W RMS x 4 at 4 ohms or 125W RMS x 4 at 2 ohms, measured at 14.4V.
Q: Can the 48KXMA5004 be bridged?
A: Yes. Bridged into 4 ohms it delivers 250W RMS x 2.
Q: Is the 48KXMA5004 suitable for use on a boat?
A: Yes. KXMA amplifiers are built to the KICKER Real Marine standard, with anti-corrosive speaker, power and RCA terminals, stainless-steel screws, conformal-coated circuit boards, ABYC/NMMA-compliant power connections and ASTM B117 200 hour salt fog test compliance. The gain, crossover and bass boost controls sit behind a gasket-sealed cover panel.
Q: Can CEN install this amplifier?
A: Yes. CEN offers professional installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.
