Kicker

KICKER 48KMA600.4 KM Series Marine 4-Channel Amplifier – 4 x 75W RMS

✓ Garage Audio Approved ✓ Australian Warranty ✓ Expert Support
$699.00

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Built to handle life on the water, the KICKER 48KMA600.4 KM Series Marine Amplifier delivers powerful, crystal-clear audio performance in even the harshest marine environments. Featuring an ultra-efficient Class-D design, this compact amplifier provides reliable power while drawing less current, making it ideal for boats, pontoons, personal watercraft, and marine audio systems.

Delivering 75 watts RMS per channel at 4 ohms, 150 watts RMS per channel at 2 ohms, or 300 watts RMS bridged, the KMA600.4 offers the flexibility to power multiple speakers or create a more powerful bridged setup. With up to 725 watts of dynamic power, your marine audio system can achieve impressive volume and clarity while maintaining efficiency.

Engineered specifically for marine use, the amplifier features a conformal-coated circuit board, corrosion-resistant 316L stainless steel hardware, and Real Marine™ ABYC/NMMA-compliant power connections for long-lasting durability in wet and demanding conditions.

Advanced tuning controls include a variable 12dB crossover and KICKER's KickEQ™ bass boost, allowing you to fine-tune your sound system for maximum performance on the water.

Key Features

  • Marine-grade 4-channel Class-D amplifier
  • 75W RMS x 4 @ 4 Ohms
  • 150W RMS x 4 @ 2 Ohms
  • 300W RMS x 2 bridged @ 4 Ohms
  • 725 Watts dynamic power output
  • Ultra-efficient Class-D technology
  • Real Marine™ ABYC/NMMA-compliant power connections
  • Conformal-coated circuit board for moisture protection
  • Corrosion-resistant 316L stainless steel hardware
  • Variable 12dB crossover network
  • KickEQ™ variable bass boost up to 6dB
  • Compact chassis for flexible installation
  • Ideal for boats, pontoons, wake boats and marine audio systems

Specifications

Specification Details
Amplifier Type 4-Channel Marine Class-D
Power Output @ 4 Ohms 75W x 4 RMS
Power Output @ 2 Ohms 150W x 4 RMS
Bridged Power @ 4 Ohms 300W x 2 RMS
Dynamic Power 725 Watts
Frequency Response 10Hz – 20kHz (+0/-1dB)
Signal-to-Noise Ratio >95dB
High-Level Input Sensitivity 250mV – 10V
Low-Level Input Sensitivity 125mV – 5V
Active Crossover Variable 50Hz – 200Hz
Crossover Slope 12dB/Octave
Crossover Modes High Pass / Low Pass / All Pass
Bass Boost KickEQ™ Variable 0-6dB @ 40Hz
Height 59mm
Width 180mm
Length 315mm
Marine Protection Conformal-Coated PCB
Hardware 316L Stainless Steel
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Specifications

4-Channel Marine Amplifier • 4-channel output • Marine construction • Reliable power delivery

Garage Audio Product Guide

Everything You Need to Know

Our Expert Opinion

Garage Audio Review

A quality marine amplifier providing clean power and a great foundation for a marine speaker upgrade.

Performance Ratings

How We Rate It

Garage Audio Overall Rating
★★★★★ 8.9/10
Reliable marine amplification offering clean power and excellent system control.
Build Quality 9/10
Value 8/10
Clarity 8/10
Treble 7/10
Midrange 8/10
Bass 8/10

Buying Advice

Is This Product Right for You?

Key Benefits

  • Reliable marine amplification • Efficient power output • Easy system expansion

Best For

Marine audio systems requiring clean power for multiple speakers

Things to Consider

  • Ensure amplifier power matches speaker requirements for best results.
Upgrade Level
Premium Marine Upgrade

Product Information

Audio Specifications

Power Rating
800W RMS
RMS Power
800 W
Peak Power
800 W
Recommended Amplifier
300-800W RMS Multi-Channel Amplifier
Amplifier Channels
4
Impedance
4 Ohm
Audio Type
Amplifier
Product Role
Marine Amplifier
Brand
Kicker

Professional Installation Available

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