Pioneer GM-ME500X1 Class-D Mono Marine Amplifier
500 W x 1 at 2Ω Class-D marine mono amp with variable LPF
$229.99$279.99 (-18%)
Overview
The Pioneer GM-ME500X1 is a Class-D mono marine amplifier rated 300 W x 1 at 4 ohms, 500 W x 1 at 2 ohms, and 800 W x 1 at 1 ohm. A variable low-pass filter from 40 Hz to 240 Hz, speaker-level inputs, and a 252 x 60 x 215 mm chassis target marine subwoofer installs. Ratings and the product photo are taken from Pioneer’s MEA marine catalog page.
Product details
Mono Class-D marine bass power
GM-ME500X1 is built for a single marine subwoofer or dual-coil load. Continuous ratings are 300 W at 4 ohms, 500 W at 2 ohms, and 800 W at 1 ohm, with max figures listed up to 1,600 W at 1 ohm. Allowable loads span 1 ohm to 8 ohms.

Variable LPF and speaker-level inputs
A variable low-pass filter from 40 Hz to 240 Hz keeps the amp focused on bass. Speaker-level inputs help when the marine head unit has no RCA preouts. THD is listed under 0.5% with S/N above 100 dB.

Chassis size
The amplifier measures 252 x 60 x 215 mm — the same footprint family as GM-ME400X4. Use marine-grade power cable and an inline fuse sized for the continuous current before mounting.
Key features
- Class-D mono marine amplifier
- Continuous power 300 W (4Ω) / 500 W (2Ω) / 800 W (1Ω)
- Max power up to 1,600 W at 1 ohm
- Variable LPF crossover from 40 Hz to 240 Hz
- Speaker-level input supported; load range 1Ω to 8Ω
- THD 100 dB
- Chassis dimensions 252 mm x 60 mm x 215 mm
Specifications
| Weight | 3.3 lbs |
|---|---|
| Dimensions | 9.92 × 8.46 × 2.36 in |
| Brand | Pioneer |
| Model | GM-ME500X1 |
| SKU | GMME500X1 |
| UPC | 884938432139 |
| Product type | Amplifier |
| Amplifier Class | Class D |
| Continuous Power | 300 W x 1 (4Ω) / 500 W x 1 (2Ω) / 800 W x 1 (1Ω) |
| Max Power | 600 W x 1 (4Ω) / 1,000 W x 1 (2Ω) / 1,600 W x 1 (1Ω) |
| Frequency Response | 10 Hz – 240 Hz |
| Impedance | 1Ω to 8Ω |
| THD | <0.5% |
| S/N Ratio | >100 dB |
| Crossover | Variable LPF 40 Hz to 240 Hz |
| Speaker Level Input | Yes |
| Channels | Mono |
| Dimensions | 252 mm x 60 mm x 215 mm |
Important notes
- Mono marine amplifier — match subwoofer impedance to the 1–8 ohm allowable range.
- Use marine-grade power, ground, and speaker wire with an inline fuse at the battery.
What's in the box
- Pioneer GM-ME500X1 marine amplifier

