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The Kicker 48KMA3604 is a KM Series marine 4-channel Class A/B amplifier rated at 360W RMS, delivering 65W x 4 at 4 ohms, 90W x 4 at 2 ohms, or 180W x 2 bridged. It is purpose-built for marine use with conformal-coated circuit boards and stainless-steel hardware.
Key specifications
- Channels: 4 (bridgeable)
- Amplifier class: A/B
- RMS power: 65W x 4 @ 4Ω / 90W x 4 @ 2Ω / 180W x 2 @ 4Ω bridged
- Speakers: Up to eight
- Crossover: Variable 12dB high-pass / low-pass
- Bass boost: KickEQ™ variable 6dB
- Fuse rating: 60A (4 AWG power cable)
- Frequency response: 10Hz to 20kHz
- Dimensions: 5.9 x 31.5 x 18.0 cm
KM Marine 4 Channel Class A/B Full-Range Amplifier
This four-channel KM marine amplifier can power up to eight speakers, making it well suited to a full-boat audio install. The KickEQ™ variable bass boost adds up to 6dB of extra low-end, and the variable 12dB crossover lets you tune the system to your speakers.
Every KM Series amp is built for life on the water with marine-grade speaker terminals, 316L stainless-steel hardware, conformal-coated circuit boards and ABYC/NMMA-compliant power connections.
Features
- Class A/B power supply
- Four-channel amplifier with bridging capability
- Conformal-coated circuit board
- Variable 12dB crossover
- KickEQ™ variable 6dB bass boost
- ABYC/NMMA-compliant power connections
- 316L stainless-steel hardware included
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Specification
| RMS Power @ 14.4V | 65W x 4 @ 4Ω / 90W x 4 @ 2Ω / 180W x 2 @ 4Ω Bridged |
|---|---|
| Output Channels | 4 |
| Voltage (V) | 12 |
| Features | KickEQ Bass Boost |
| Waterproof Rating | ASTM B117 200 hr Salt Fog Test Compliant |
| Filter | High-Pass / Low-Pass |
| Fuse Rating (A) | 60 |
| Cable Gauge (AWG) | 4 |
| Amp Turn-On | DC Offset / 12V |
| Frequency Response | (Hz) 10-20k |
| Signal-to-Noise Ratio (dB) | 95 |
| Controller | N/A |
| Input Channels | 4 |
| Input Type | High Level / Low Level |
| Input Sensitivity Low Level | 125mV-5V |
| Input Sensitivity High Level | 250mV-10V |
| Height (cm) | 5.9 |
| Width (cm) | 31.5 |
| Depth (cm) | 18.0 |
What's Included
- Kicker 48KMA3604
Kicker
About the Kicker 48KMA3604
From our tech experts at CEN
A marine-rated amplifier, 4 channel, rated at 360w 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.
Explore the full Kicker range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Kicker
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Frequently Asked Questions
Q: How much power does the Kicker 48KMA3604 deliver?
A: It delivers 65W RMS x 4 at 4 ohms or 90W RMS x 4 at 2 ohms, measured at 14.4V.
Q: Can the 48KMA3604 be bridged?
A: Yes. Bridged into 4 ohms it delivers 180W RMS x 2, and the amplifier can power as many as eight speakers.
Q: Is the 48KMA3604 suitable for use on a boat?
A: Yes. It is a KM Series marine amplifier with a conformal-coated circuit board to resist moisture and corrosion, ABYC/NMMA-compliant power connections, 316L stainless-steel hardware and ASTM B117 200 hour salt fog test compliance.
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.
