Class FD 4-Channel Bridgeable Amplifier with Gold-plated RCA Terminals, Hi-Res Audio Capable, HQ Sound Parts and Wired Bass Boost Remote
Pioneer’s extra-efficient Class-FD amplifiers mark a dramatic improvement in power output capability, yet are 50% smaller than the current GM-Series Class-AB amplifiers. That makes them more versatile in terms of installation as well as performance.
To prevent circuit shutdown, Pioneer's digital amplifier circuit "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, a variable LPF makes audio frequency more adjustable according to subwoofer characteristics and personal listening preferences. The GM-DX874 LPF is adjustable from 40 Hz to 500 Hz.
| Model | GM-DX874 |
|---|---|
| Manufacturer | Pioneer |
| Weight | 5.500000 |
| Amplifier Type | Class D |
| CEA-2006 Compliant | Yes |
| Hi-Res Certified | No |
| Avg Current Consumption (amps x #ch) | 2 Ohm - 4.4A (4Ch) / 4 Ohm - 3.1A (4Ch) / 4 Ohm Bridged - 4.4A (2Ch) |
| Bass Boost | 50 Hz - Frequency |
| CN-A/B Channel (Hz) | 40 Hz to 500 Hz |
| CN-A/B Channel Slope | -12dB/oct |
| CN-A/B/C Channel | HPF - A/B Ch 40Hz-500Hz / LPF - A/B Ch 40Hz-500Hz |
| CN-Sub Channel | LPF - 40Hz-500Hz |
| Frequency Response - A/B/C Channel | 10 Hz to 50 kHz (+0dB,-3dB) A/B Ch |
| Frequency Response - Sub Channel | 10 Hz to 50 kHz |
| FUSE Ratings - ATC | 30A x 2 |
| Input Level @Gain Max | 200 mV to 6.5 V - RCA / 0.8 V to 16 V - Speaker |
| Load Impedence Allowance | 1 ohm to 8 ohm allowable |
| Max Power Output | 4 Ohm - 200W x 4 / 4 Ohm Bridged - 600W x 2 |
| Nominal Power Output | 1 Ohm - 125W RMS x 4 / 2 Ohm - 150W RMS x 4 / 4 Ohm - 100W RMS x 4 / 4 Ohm Bridged - 300W RMS x 2 |
| RCA Inputs | 4-Channel |
| Signal-to-Noise | 75 dBA (Reference: 1 W into 4 ohm) |
| THD | =/< 1% ( 20 Hz to 240 Hz) |
| Bridgable | Yes |
| Power Supply | 14.4V (10.8 V to 15.1 V allowable) |
