Product Overview
The Pioneer GM-DX871 is a compact, high-efficiency Class D mono amplifier designed to deliver deep, controlled bass in a space-saving chassis. Built for subwoofer applications, this amplifier provides strong output while staying cool and reliable during extended play.
Power & Performance
Delivering 300W RMS @ 4Ω, 500W RMS @ 2Ω, and up to 800W RMS @ 1Ω, the GM-DX871 provides flexible power options for a wide range of subwoofer setups. Rated at 1600W max power, it delivers hard-hitting bass with clarity and control.
Efficient Class D Design
Pioneer’s advanced Class D technology allows this amplifier to produce high output in a compact enclosure, making it ideal for vehicles with limited installation space while maintaining excellent efficiency and thermal performance.
Bass Control & Tuning
A variable low-pass filter adjustable from 40Hz to 240Hz allows precise bass tuning to match your subwoofer and vehicle acoustics. The included wired bass boost remote lets you control low-frequency output directly from the driver’s seat.
System Integration & Protection
Speaker-level inputs enable easy integration with factory audio systems using the included adapter. Pioneer’s Protection Control System continuously monitors voltage, current, and temperature to ensure stable, long-term operation.
Key Features
1-Channel Class D Subwoofer Amplifier
1600W Max Power Output
800W RMS @ 1Ω Capability
Variable Low-Pass Filter (40Hz–240Hz)
Remote Bass Boost Control Included
Compact, Cool-Running Design
Specifications
Power Output: 300W RMS @ 4Ω / 500W RMS @ 2Ω / 800W RMS @ 1Ω
Frequency Response: 10Hz – 240Hz
Signal-to-Noise Ratio: 75 dBA
THD: ≤1%
Minimum Impedance: 1Ω
Fuse Rating: 40A x2
Unit Weight: 6 lbs
What’s in the Box
GM-DX871 Mono Amplifier
Bass Boost Remote & Cable
Speaker-Level to RCA Adapter
Installation Hardware
Owner’s Manual
1-Year Manufacturer Warranty
