Pioneer GM-DX871 Class-D Mono Amplifier 800 W RMS at 1 Ohm
Compact Class-D mono amplifier with wired bass remote and 1-ohm stability
$249.99
Overview
The Pioneer GM-DX871 is a Class-D mono amplifier rated 300 W RMS at 4 ohms, 500 W RMS at 2 ohms, and 800 W RMS at 1 ohm (1% THD). A variable low-pass filter, 50 Hz bass boost, speaker-level inputs, and a wired bass remote support dedicated bass-speaker systems. Dual 40 A fuses protect the power section.
Product details
Compact mono Class-D power
GM-DX871 delivers CTA-style continuous power of 300 / 500 / 800 W RMS into 4 / 2 / 1 ohm loads at 1% THD, with maximum ratings up to 1600 W at 1 ohm. The compact chassis uses high-current parts and gold-plated RCA inputs for a clean signal path into a single-channel bass system.
LPF, bass remote, and speaker-level inputs
A variable low-pass filter (40–240 Hz, −12 dB/oct) and 50 Hz bass boost help tune the low end. Speaker-level inputs let the amp work with factory radios that lack RCA outputs. The included wired bass remote adjusts level from the front of the cabin. Frequency response is 10 Hz to 240 Hz.
Install notes
Run appropriately sized power and ground cable for an 800 W RMS 1-ohm capable amp, and fuse at the battery. Dual 40 A fuses are on the chassis. Confirm your bass speaker’s RMS rating and impedance before connecting.
Key features
- Class-D mono amplifier for dedicated bass speakers
- 300 W RMS x 1 at 4 ohms; 500 W RMS x 1 at 2 ohms; 800 W RMS x 1 at 1 ohm
- Maximum power up to 1600 W at 1 ohm
- Variable LPF 40–240 Hz at −12 dB/oct
- Bass boost centered at 50 Hz
- Gold-plated RCA inputs
- Speaker-level inputs for factory radios
- Wired bass remote included
- Dual 40 A fuses on chassis
- Frequency response 10 Hz – 240 Hz
Specifications
| Weight | 8 lbs |
|---|---|
| Dimensions | 13 × 11 × 5 in |
| Channels | Mono |
| Brand | Pioneer |
| Model | GM-DX871 |
| SKU | GMDX871 |
| UPC | 884938421836 |
| Product type | Amplifier |
| Amplifier Class | Class D |
| Continuous Power Output | 300 W RMS x 1 @ 4 Ohm; 500 W RMS x 1 @ 2 Ohm; 800 W RMS x 1 @ 1 Ohm |
| Max Power Output | 600 W x 1 @ 4 Ohm; 1600 W x 1 @ 1 ohm |
| Load Impedance | 1 ohm to 8 ohm allowable |
| Frequency Response | 10 Hz to 240 Hz (+0dB,-3dB) |
| Crossover | LPF 40 Hz-240 Hz, -12dB/oct |
| Bass Boost | 50 Hz |
| Fuse | 40 A x 2 |
| RCA Inputs | 1-Channel (Mono) |
| Speaker Level Input | Yes |
| Remote Control | Wired bass remote included |
Important notes
- Match continuous amp power to your bass speaker's RMS rating and impedance.
- Use adequate power/ground wire and a battery-side fuse sized for this amplifier.
- Speaker-level inputs are for signal only—still provide proper 12 V, ground, and remote turn-on.
- Mount on a solid surface with airflow; do not cover the heatsink.
What's in the box
- Pioneer GM-DX871 mono amplifier
- Wired bass remote control
- Remote cable
- Mounting screws
- Owner's manual
