• GM-DX874



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High Resolution Class-FD 4-Channel Bridgeable Amplifier with Gold RCA Terminals, Hi-Res Audio Capable, HQ Sound Parts and Wired Bass Boost Remote (1200W)

High Resolution Audio.

High Resolution audio offering sound reproduction with extraordinary realism. Pioneer's GM-DX874 is an extra-efficient Class-D digital amplifiers featuring superior high quality audio parts that have been finely tuned to offer outstanding sound quality. Gold RCA terminals and a high capacity audio source capacitor ensures stable power supply, even at high power output.


To prevent circuit shutdown, Pioneer's GM-DX874 digital amplifier circuit includes a "Protection Control System" senses its internal temperature and automatically moderates input level accordingly. Stable, durable circuitry lessens the risk of high input power for the unit to achieve 1 Ω connection. This design enhances the flexibility to connect multiple subwoofers to a system.


For extra flexibility, easy installation is guaranteed thank to "Automatic Signal Sensing and Turn-On", which automatically detects an input signal and turns the amplifier on and off when connected via the speaker line input.


Variable LPF and HPF means you can adjust the audio frequency more according to the speaker, subwoofer characteristics and personal listening preferences. The GM-DX874 LPF and HPF is adjustable from 40 Hz to 500 Hz. The GM-DX874 also includes a wired Bass Boost Remote Control.


The GM-DX874 has a sleek design thanks to an aluminium hairline panel on the top plate enhancing the high quality sense of design and a total of 1200W.


NOTE: Products with the Hi-Res Audio logo conform to the Japan Audio Society's Hi-Res Audio standards. The logo is used under license from the Japan Audio Society.


High Resolution Audio
High Resolution AudioThis product supports High Resolution Audio
Speaker line input sensor
Speaker line input sensorconnect your existing OEM unit without the hassle of add-on adapters
Variable LPF
Variable LPFadjust your low-pass filter frequency for greater audio system flexibility
Variable HPF
Variable HPFadjust your high-pass filter frequency for greater audio system flexibility
Multi-block Terminal
Multi-block Terminalsmoothly connect up to 4 subs for high-power audio output
D-classenjoy first class sound and powerful volume on a versatile system at half the size of other units
Bass Boost Remote
Bass Boost Remoteturn up your bass levels at the turn of a button
View all specifications

Full specifications

Main Features

High Resolution Audio
Speaker line input sensor Turn-on sensor
Variable LPF
Bass Boost Remote
Channel(s) 4 / 2 / 1
Speaker Terminals Block-type
Maximum power 4 x 200W (4Ω)
4 x 300W (2Ω)
1200W Total
Continuous power output 4 x 100W RMS (4Ω)
4 x 150W RMS (2Ω)
4 x 125W RMS (1Ω)
2 x 300W RMS (4Ω bridged)
Frequency response 10 Hz - 50 Hz
Input level control RCA (0.2V - 6.5V)
SP (0.8V - 16V)
Distortion < 0.05 %
S/N ratio > 95 dB
Chassis size (W x H x D) 252 x 60 x 215 mm
Unit weight 2.5 kg
Bass Boost Yes
Crossover Frequency 40 - 500Hz (-12 dB/oct) Hz


Variable HPF
RCA Terminals
Low Pass Filter
High Pass Filter


Multi-block Terminal