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.

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

Main Features

• High Resolution Audio    
• Speaker line input sensor Turn-on sensor
• Variable LPF    
• D-class    
• 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
• Crossover Frequency 40 - 500Hz (-12 dB/oct) Hz

Audio

• Variable HPF    
• RCA Terminals    
• Low Pass Filter    
• High Pass Filter

Connections

• Multi-block Terminal