Kicker KXMA800.4 4-Channel Marine Amplifier

The Kicker KXMA800.4 is a high-output 4-channel marine amplifier designed for boat owners who want strong, clean power and long-term reliability in demanding marine environments. Built with Kicker’s marine-grade engineering, this amplifier delivers excellent clarity and output while maintaining efficiency and durability on the water.

Delivering up to 100 watts RMS per channel at 4 ohms and up to 200 watts RMS per channel at 2 ohms, the KXMA800.4 is ideal for driving high-quality marine speakers with authority. It can also be bridged to produce up to 400 watts RMS across two channels, making it a flexible solution for both full-range speaker systems and more powerful two-channel configurations.

Engineered around a high-efficiency Class D platform, the amplifier runs cooler and draws less current while still delivering powerful output. Marine-grade construction including conformal-coated circuit boards, stainless-steel hardware, and a gasket-sealed control panel ensures reliable performance in wet, salty, and high-vibration environments.

Advanced tuning tools such as DSP-controlled preamp circuitry, variable 24dB crossovers, KickEQ™ bass boost, and Gain Match LED setup indicators give installers precise control over system tuning for clean, balanced sound across all conditions.

Features

• Marine-grade 4-channel Class D amplifier
• High-output design for marine speaker systems
• Bridgeable channels for flexible system configurations
• FIT2™ (Fail-safe Integration Technology) circuitry
• DSP-controlled preamp section
• Variable 24dB crossovers for precise tuning control
• KickEQ™ variable bass boost (0–6dB)
• Gain Match LED tuning system
• Conformal-coated circuit boards for corrosion resistance
• Gasket-sealed control panel for water protection
• Black anodized aluminium chassis
• Stainless-steel mounting hardware included
• Full-range RCA output for system expansion

Power Ratings

• 100W RMS x 4 @ 4 Ohms
• 200W RMS x 4 @ 2 Ohms
• 400W RMS x 2 Bridged @ 4 Ohms

Dynamic Power

• 1100 Watts Dynamic Power

Specifications

• Amplifier Type: Class D
• Frequency Response: 10Hz – 20kHz (+0/-1dB)
• Signal-to-Noise Ratio: >95dB (A-weighted)
• Input Sensitivity:
  • High Level: 250mV – 10V
  • Low Level: 125mV – 5V
• Active Crossovers:
  • Channel 1: High Pass / Low Pass / All Pass, variable 10Hz–5kHz
  • Channel 2: High Pass / Low Pass / Band Pass, variable tuning ranges
• KickEQ™ Bass Boost: 0–6dB at 40Hz (Channel 2 only)
• Dimensions: 294mm (L) x 210mm (W) x 54mm (H)
• Wired Remote: Not included

Ideal For

• Marine speaker systems requiring strong, clean power
• Boats, cruisers, wake boats, and fishing vessels
• Upgrading factory marine audio systems
• Customers wanting a flexible 4-channel amplifier solution
• Compact high-performance marine installations

The Kicker KXMA800.4 delivers powerful output, flexible tuning, and marine-grade durability, making it an excellent choice for reliable long-term performance on the water.