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Product Info
The Pioneer 4 Channel Class-D Amplifier GMDX874 is a compact, Hi-Res Audio Certified car amplifier built for enthusiasts who want powerful, detailed sound without sacrificing installation space. The GMDX874 combines a 1 ohm stable Class D circuit with a superior high-power output, delivering 100W RMS x 4 channels at 4 ohm and up to 150W RMS x 4 channels at 2 ohm, or 300W RMS x 2 channels when bridged at 4 ohm for driving a subwoofer.
Variable high pass and low pass filters, adjustable from 40 Hz to 500 Hz, let you tailor the frequency output to your speakers or subwoofer and personal listening preference. Gold plated RCA terminals and speaker level inputs give flexible wiring options for factory or aftermarket head units, while the included wired bass remote puts bass boost adjustment within easy reach. This Pioneer amplifier is a natural partner for Pioneer's TS-Z range of Hi-Res Certified speakers, rounding out a cohesive high resolution audio system.
Features
- Hi-Res Audio Certified for crystal clear, detailed sound reproduction
- 1 ohm stable Class D circuit delivers high power output from a compact chassis
- Delivers 100W RMS x 4 at 4 Ohm, up to 150W RMS x 4 at 2 Ohm
- Bridgeable to 300W RMS x 2 at 4 Ohm for powerful subwoofer bass
- Variable high pass and low pass filters adjustable from 40 Hz to 500 Hz
- Gold plated RCA terminals and speaker level inputs add installation flexibility
- Wired bass remote included for easy bass boost adjustment while driving
- Perfect match for Pioneer TS-Z Hi-Res Certified speakers
Tech Spec
| RMS Power Output (per channel) | 100W RMS x 4 @ 4 Ohm |
|---|---|
| Peak/Max Power Output | 150W RMS x 4 @ 2 Ohm, 125W RMS x 4 @ 1 Ohm |
| Number of Channels | 4 Channel |
| Class (A/B, D, etc.) | Class D |
| Impedance Range (ohms) | 1 to 8 Ohm allowable |
| Frequency Response | 10 Hz to 50 kHz |
| Signal-to-Noise Ratio | > 95dB |
| Crossover (High/Low Pass) | Variable 40 Hz to 500 Hz, Low-Pass slope -12dB/oct |
| Input Type (RCA / High-Level) | 4-CH RCA (Gold Plated), Speaker Level Input |
| Fuse Rating | 30A x 2 |
| Operating Voltage | 14.4V DC (10.8V to 15.1V allowable) |
| Dimensions (L x W x H) | 252mm (W) x 60mm (H) x 215mm (D) |