50% smaller than typical amplifiers, providing flexible installation with 1,200 Watts of max power.
Advanced circuit prevents overheating and allows stable multi-subwoofer connections.
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Product Details
The Pioneer GM-DX874 Class D 4 Channel Hi-Res Amplifier combines powerful performance with compact versatility, providing up to 1-Ohm stability, flexible installation, and high-power output. Certified for Hi-Resolution Audio, this amplifier is crafted for audiophiles who demand the best in sound quality.
Designed to partner seamlessly with Pioneer’s TS-Z Series speakers, the GM-DX874 reproduces music with remarkable clarity, making it an ideal choice for those looking to bring high-resolution sound to their car audio system.
Kit Includes:
- Pioneer GM-DX874 Amplifier
- Installation Hardware Set
Features:
- Hi-Res Audio Certified: Built with premium components and fine-tuned for Hi-Resolution Audio, ensuring unmatched sound quality that meets the Japan Audio Society's high standards.
- Compact, High-Power Design: Provides robust audio output in a size that’s 50% smaller than traditional amplifiers, allowing versatile placement options without sacrificing performance.
- Protection Control System: An advanced circuit design prevents shutdown by regulating internal temperature, supporting a stable 1-Ohm connection and flexible multi-subwoofer configurations.
- Adjustable Filters: Customise sound with adjustable Low Pass and High Pass Filters, ranging from 40 Hz to 500 Hz, to suit personal audio preferences and subwoofer characteristics.
- High-Level Inputs: Integrates seamlessly with OEM or non-RCA-equipped head units, using speaker-level inputs to simplify installation and enhance compatibility.
Part number: GMDX874
Specifications
| GENERAL | |
| RCA Inputs | 4-CH (Gold Plated) |
| Amplifier Class | CLASS-D |
| Hi-Res Certified | Yes |
| Bridgeable | Yes |
| Warranty | 1 Year |
| Speaker Level Input | Yes |
| Fuse Rating | 30A x 2 |
| Bass Boost Remote | Yes |
| Automatic Signal Sensing and Turn-On | Yes |
| Hi-Volt Input Level Control | 200 mV to 6.5 V |
| Terminal Type | Block |
| Load Impedance Allowance (Ohms) | 1 to 8 |
| Protection Control System | Yes |
| Dimensions | 252mm (W) x 60mm (H) x 215mm (D) |
| POWER | |
| Continuous Power (RMS) Output @ 1Ω | 125W RMS x 4 |
| Continuous Power (RMS) Output @ 2Ω | 150W RMS x 4 |
| Continuous Power (RMS) Output @ 4Ω | 100W RMS x 4 |
| Continuous Power (RMS) Output - Bridged @ 4Ω | 300W RMS x 2 |
| AUDIO ADJUSTMENTS | |
| Low-Pass Crossover Frequency | 40 Hz |
| Low-Pass Slope (dB/octave) | -12dB |
| High-Pass Crossover Frequency | 500 Hz |
| Bass Boost Frequency | 50 Hz |
| Bass Boost Level | 0 dB to 18 dB |
| AUDIO SPECIFICATIONS | |
| Frequency Response | 10 Hz - 50 kHz |
| Total Harmonic Distortion (THD) | < 0.5% (100 Hz) |
| Signal-to-Noise (SN) Ratio | > 95dB |
Reviews
Pioneer Class D 4 Channel Hi Res Amplifier

