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Compact black mono marine amplifier with rubber-sealed side controls and covered RCA terminals

Pioneer

Pioneer GM-ME500X1 Mono Marine Amplifier

SKU CH-ZG4P-9BAK4

A mono marine subwoofer amplifier delivering 300 watts RMS at 4 ohms, 500 watts at 2 ohms and 800 watts at 1 ohm with CTA-2006 compliance

  • TypeMarine Amplifier
  • 300 W RMS at 4 ohms for strong single-sub output
  • 500 W RMS at 2 ohms to drive dual-voice-coil loads
  • 800 W RMS at 1 ohm for maximum cone control
  • CTA-2006 compliant ratings verified by independent testing
  • Conformal-coated boards and sealed rubber covers resist salt-spray corrosion

Mono marine subwoofer amplifier

The Pioneer GM-ME500X1 is a single-channel amplifier built for marine subwoofers. It delivers 300 watts RMS at 4 ohms, 500 watts RMS at 2 ohms and 800 watts RMS at 1 ohm. Conformal coated circuit boards protect the electronics from moisture and salt. This unit suits boat owners who want dedicated bass power on the water. It is not for buyers who need multi-channel amplification for full-range speakers.

Variable low-pass and subsonic filters

A variable low-pass filter adjustable from 40 to 240 Hz at 12 dB per octave lets you match the crossover to your subwoofer. A selectable subsonic filter fixed at 30 Hz with 24 dB per octave slope removes infrasonic content that can damage drivers. Both filters are CTA-2006 compliant. Preamp and speaker-level inputs allow connection to almost any source unit. Rubber covers shield side-panel controls, RCA terminals and fuses from spray.

Installation notes

The amplifier measures 9-7/8 inches wide, 2-3/8 inches high and 8-1/2 inches deep. Wiring and mounting hardware are not included, so installers must supply 4-gauge power and ground leads plus two 40A fuses. The compact chassis fits tight lockers, but the lack of included wiring often delays the job. Ensure the mounting surface is flat and allows airflow around the heatsink. Professional installation is recommended for reliable marine performance.

Highlights

  • 300 W RMS at 4 ohms for strong single-sub output
  • 500 W RMS at 2 ohms to drive dual-voice-coil loads
  • 800 W RMS at 1 ohm for maximum cone control
  • CTA-2006 compliant ratings verified by independent testing
  • Conformal-coated boards and sealed rubber covers resist salt-spray corrosion

Specifications

BrandPioneer
TypeMarine Amplifier

Questions about this item

Will the 40 A fuses need routine replacement or only if a fault occurs?

The two 40 A fuses protect the power circuit and only require replacement if they blow due to an overload or short.

At 1 ohm load the amp delivers 800 W RMS — will thermal protection kick in first during long play?

Conformal coated boards and the marine-rated chassis dissipate heat, so the amplifier is designed to sustain its 800 W RMS rating at 1 ohm without early thermal shutdown.

How loud is the cooling fan when the amp runs all day at 500 W RMS into 2 ohms?

No cooling fan is fitted; the unit relies on passive heatsinking, so operation is silent aside from any airflow in the mounting location.

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