4-Channel Class-D Weatherproof Compact Marine Amplifier

  • Class-D audio amplifier
  • IP67 rated
  • PCS (Protection Control System)
  • 21-step frequency selection (LPF/HPF)
  • Selectable Power Mode (Mono/ 2CH)
  • Bridge Selector switch controlled by Microcomputer


Pioneer's GM-ME300X4C is a Class-D weatherproof 4-channel marine amplifier that is IP67 rated and SAE J1171 Certified. This amplifier features 21-step frequency selection and top adjustment access that benefits when installing into narrow compartments. The microcomputer Protection Control System (PCS), provides thermal protection, controlled current, and voltage protection to ensure stable output operation. Independent speaker output settings for each channel provide speaker matching flexibility.

class d am image

Class D Audio Amplifier with Micro Controller Unit design (MCU)

Pioneer is a Class D Marine Amplifier features an MCU design, utilizing a microprocessor to enable and control the amplifier’s audio, power and protection circuits.

Protection Control System (PCS)

Pioneer’s PCS continuously monitors the input voltage, current consumption, and operating temperature to automatically adjust the amplifier’s output to ensure operational stability during long listening sessions or when installed in high-temperature environments.

PCB Layout and Design

The PCB for this Pioneer amplifier is made of a glass epoxy substrate which is strong, water-resistant, and provides good insulation between layers to minimize interference while promoting accurate signal with increased electrical connectivity.

water and dust protection cover image

Dust & Waterproof Design

IP67 rated for dust and water resistance when installed with the included control panel cover. Total protection against dust ingress and protection against short periods of immersion in water (maximum 30 minutes at 1 meter/3.28ft. depth).

close up of Pioneer logo image

Digital controlled Class-D Amplifier Circuit

This amplifier features a 32-bit floating-point DSP to modulate the input signal which improves audio performance for the highest levels of accuracy, stability, channel symmetry, and high signal-to-noise performance.

overhead view of the amp

SAE J1171 Certified

This amplifier is SAE J1171 certified for external ignition protection of Marine Electrical Devices. This recommended practice covers all electrical devices suitable for use in marine engine compartments and fuel tank spaces.

Flexible Output Mode Adjustment Settings – 4-channel

Two independent channel settings (Ch A and Ch B) for Speaker Setting, Input level gain, Frequency response, and Crossover.

Selectable Power Output – 4-channel

Allows user option to select Mono when a subwoofer is connected. 2-channel when full range speaker is connected.

Input Setting – 4-channel

Users have the option to either select a 2-channel or 4-channel input with the flexibility to optimize installation using the provided RCA or Speaker wire inputs for connectivity.

Top Chassis Adjustment Access

Extremely flexible in a variety of environmental conditional, the sealed top chassis cover is removable to easily access adjustment setting options.

What’s in the Box

  • 4-Channel Marine Amplifier
  • One 30-amp ATO fuse in-line (installed)
  • Power Harness (1)
  • Speaker Line Input RCA Cable (2)
  • Installation Screws X 4
  • Supplied Tool (2)
  • Owner's manual (English/ French/Spanish)
  • 1 Year Warranty sheet
  • Yes
  • IP67
  • Yes
  • 2 ohm to 8 ohm allowable
  • 5.8 A x 4-Channel - 4 Ohm / 6.6 A x 4-Channel - 2 Ohm
  • 75 W x 4-Channel - 4 Ohm / 75 W x 4-Channel - 2 Ohm / 150 W x 2-Channel - 4 Ohm (Mono)
  • HPF - A/B Ch 40Hz-500Hz / LPF - A/B Ch 40Hz-500Hz
  • -12db/oct (A/B Ch)
  • 10 Hz to 50 kHz (+0dB,-3dB) A/B Ch
  • 30A
  • 0.2 V to 6.5 V - RCA / 0.8 V to 16 V - Speaker
  • 4-Channel
  • 2 Ohm - 75W RMS x 4 / 4 Ohm - 75W RMS x 4 / 4 Ohm Mono - 150W RMS x 2
  • 75 dBA (Reference: 1 W into 4 ohm)
  • Yes
  • =/< 1% ( 20 Hz to 20kHz) A/B Ch
Amplifier Features
  • D
  • Negative
  • Yes
  • 14.4V (10.8 V to 15.1 V allowable)
  • Yes
  • RCA
  • Plug
  • 3.1
  • Pioneer GM-ME300X4C - 4 Channel Power Sports and Marine Audio Amplifier - System Overview

    Pioneer GM-ME300X4C - 4 Channel Power Sports and Marine Audio Amplifier - System Overview

  • Pioneer GM-ME300X4C - 4 Channel Power Sports and Marine Audio Amplifier - What's in the Box

    Pioneer GM-ME300X4C - 4 Channel Power Sports and Marine Audio Amplifier - What's in the Box