About the Pioneer GM-DX975
Cool power station
Cool power station
Pioneer's handsome GM-DX975 five-channel amplifier can power your entire car audio system, sending 75 watts RMS to each of your front and rear speakers while delivering up to 600 watts RMS to your sub. Highly efficient Class D technology keeps this powerful amp running as cool as it looks, and allows for a small chassis that fits in a lot of out-of-the-way spaces. The frequency response of the full-range channels stretches up to 50,000 Hz, so it'll support crystal-clear, Hi-Res playback. And this limited-edition amp uses high-grade electronic parts and gold-plated RCA connections to ensure maximum performance.
Versatile amp
You can also create a strong front soundstage with bass by putting your GM- DX975 into 3-channel mode, sending 200 watts RMS each to a set of high-performance components up front, for example, plus 600 watts to a sub.
Connecting and tuning made simple
Speaker-level inputs allow you to install this amp in a factory system with no RCA connections — the amplifier switches its input mode automatically when it detects the high-level signal, eliminating the need to run a turn-on lead to your receiver or fuse box. Built-in high- and low-pass filters let you adjust the sound for your vehicle's interior, and a wired remote boost that lets you control the amount of bass boost from the front seat.
Product highlights:
- 5-channel car amplifier
- 75 watts RMS x 4 + 350 watts RMS x 1 at 4 ohms
- 100 watts RMS x 4 + 600 watts RMS x 1 at 2 ohms
- 200 watts RMS x 2 bridged at 4 ohms + 600 watts RMS x 1 at 2 ohms
- CTA-2006 compliant
- Class-D amplifier design
- frequency response of 4-channel section: 10-50,000 Hz (Hi-Res capable)
- variable high- and low-pass filters (40-500 Hz, 12 dB/octave) on 4-channel section
- variable low-pass filter (40-500 Hz, 12 or 24 dB/octave) on sub channel
More Features:
- wired remote controls bass boost (0-18 dB at 50 Hz) for sub channel
- preamp and speaker-level inputs
- gold-plated RCA connections
- wiring and hardware not included with amplifier
- 4-gauge power and ground leads recommended
- fuse rating: 30A x 3
- dimensions; 12-7/16"W x 2"H x 7-7/8"D
- warranty: 1 year
- Our 60-day money-back guarantee
- MFR # GM-DX975
What's in the box:
Pioneer GM-DX975 owner's manual
- 5-Channel amplifier
- Three 30-amp ATO fuses (installed)
- 8" Speaker input harness
- Wired Bass Boost Remote
- 16' Bass Boost Remote cable (RJ-14 plug on both ends)
- Four 3/4" Screws
- Two 3/8" Screws
- 3mm Allen wrench
- 1.5mm Allen wrench
- Owner's manual (English/ French)
- Owner's manual (Spanish)
- Warranty information
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More details on the Pioneer GM-DX975
Features & specs
| Performance | ||
|---|---|---|
| RMS Power Output (Watts x Channels) |
75 x 4 600 x 1 | |
| Peak Power Output (Watts x Channels) | --- | |
| Power at 2 Ohms (Watts x Channels) | 100 x 4 | |
| Bridged Power (Watts x Channels) | 200 x 2 | |
| Minimum Impedance Bridged | 4 | |
| Minimum Impedance Unbridged | 2 | |
| Minimum Impedance | 2 | |
| Best Frequency Response | 10-50000 Hz | |
| THD at Rated RMS Power | 1% | |
| Signal to Noise Ratio | 75 dB | |
| Input Voltage | 14.4v | |
| Features | ||
| Amplifier Class | FD | |
| Low-Pass Crossover Frequency | 40-500 Hz | |
| Low-Pass Slope (dB/octave) | 12 dB/octave, 24 dB/octave | |
| High-Pass Crossover Frequency | 40-500 Hz | |
| High-Pass Slope (dB/octave) | 12 dB/octave | |
| Bass Boost | 0-18 dB | |
| Bass Boost Frequency | 50 Hz | |
| Fan Cooled | No | |
| Fuse Rating | 90 | |
| Speaker Level Inputs | Yes | |
| Preamp Outputs | No | |
| Width (inches) | 12-1/16 | |
| Height (inches) | 2-3/8 | |
| Depth (inches) | 8-1/2 | |
| Parts Warranty | 1 Year | |
| Labor Warranty | 1 Year | |
Product Research
Features
CEA-2006 Compliant: CEA-2006 is a system of testing and measurement for mobile audio amplifiers. This voluntary standard advocates a uniform method for measuring an amplifier's RMS power output. The criteria for measuring power uses a DC input voltage of 14.4 volts and the RMS power output is measured over a frequency range of 20 Hz to 20 kHz (for full range amplifiers), with 1% or less Total Harmonic Distortion plus noise (THD+N). CEA-2006 standards allow consumers to compare car amplifiers and receivers under the same conditions (apples to apples).
CEA-2006 Specifications:
- Power Output: 75 watts RMS x 4 + 350 watts RMS x 1 into 4Ω
- Signal to Noise Ratio: 75 dBA (measured at 1 watt into 4Ω)
Other Specifications: (not using the CEA 2006 criteria)
- Power Output:
- 100 watts RMS x 4 + 600 watts RMS x 1 into 2Ω (at 14.4 volts)
- 200 watts RMS x 2 (bridged) + 350 watts RMS x 1 into 4Ω (at 14.4 volts)
- 150 watts (max) x 4 + 700 watts (max) x 1 into 4Ω
- Signal to Noise Ratio: 94 dB (at rated power output)
- Distortion: 0.05% (measured at 10 watts, 1 kHz)
Class-FD Amp: A Class-D amplifier offers higher power in a smaller chassis than conventional Class-AB amp designs. Pioneer's exclusive Class-FD design not only delivers full-range Class-D amplification, but is more efficient than other designs. The result is clear full-range sound in a small amplifier. The compact design provides many installation options.
Channel Layout: The GM-DX975 is a 5-channel amplifier; the channels are labeled A (left and right), B (left and right), and SW (subwoofer). The A and B channels are bridgeable, so it can be wired as 5-channel, 4-channel, or 3-channel.
Auto Turn-on: When using a speaker level input, a signal sensing circuit will automatically turn the amp on and off along with the source unit. This eliminates the need for running a system remote control wire (turn-on lead).
Controls
Input Select Switches: The amplifier has two input select switches that allow you to choose the preferred input mode. For the A and B channels, the 4-channel mode requires two pair of RCA inputs be connected to the amplifier's A and B inputs, while the 2-channel mode only requires one pair connected to the A inputs. If you have a separate RCA signal for the subwoofer channel, the SW Input Select should be in the SW position. If you do not have a separate subwoofer input, the switch should be in the A/B position (the subwoofer channel will receive a signal from the A/B input).
Gain Control: There are independent gain controls for the A, B, and SW (subwoofer) amplifier sections, each is continuously variable from 200 mV to 6.5 V. When you use a speaker level input, the gain control range is from 800 mV to 16 V.
Crossovers: The A, B, and SW sections also have independent crossover controls. The A and B channel crossovers can be set to Low Pass, High Pass, or Off (Full Range). The rotary frequency controls are continuously variable from 40 Hz to 500 Hz. The subwoofer channel low-pass crossover is always engaged (can't be bypassed) and is also continuously variable from 40 Hz to 500 Hz. The crossover slope is 12 dB/octave for the A and B channels, and is selectable for the subwoofer channel, between 12 dB/octave and 24 dB/octave via a 2-way switch.
Remote Bass Boost Control: The included Remote Bass Boost control module lets you adjust the amount of bass boost (output by the subwoofer channel) from the front of the vehicle. The Bass Boost circuit is centered at 50 Hz, with a variable boost level of 0 dB to 18 dB. Module dimensions:
- Width: 1¾" (2⅝ including the mounting tabs)
- Height: ¾"
- Depth: 1⅝" (2⅛" including knob and wiring)
Connections
Power: The power and ground connections are set screw terminals that will accommodate up to 4-gauge wire. The included 3mm Allen wrench is used to tighten/loosen the terminals. Pioneer recommends different power and ground wire gauges based on the length of the wire:
- 8-Gauge: up to 7' 3"
- 6-Gauge: up to 11' 10"
- 4-Gauge: up to 21'
Note: The amplifier has three 30-amp fuses installed and Pioneer recommends a 100-amp fuse in-line within 12" of the battery.
Remote Turn-on: The remote connection is a set screw terminal that will accommodate up to 8-gauge wire. The included 3mm Allen wrench is used to tighten/loosen the terminals.
Speaker Connections: The A and B channel output terminals will accept up to 12-gauge speaker wire. The set screws are tightened/loosened using the included 1.5mm Allen wrench. The subwoofer output will accept up to 8-gauge wire. Its set screws are tightened/loosened using the included 3mm Allen wrench.
Signal Input: The amplifier features three pair of stereo RCA inputs for Channels A, B, and SW. If no preamp level signal is available, use the included speaker level input harness, and splice the speaker wires from the source unit to the harness.
The Pioneer GM-DX975 replaces these items
- 200 watts RMS x 2 bridged at 4 ohms + 600 watts RMS x 1 at 2 ohms
- preamp and speaker-level inputs
- variable subsonic filter and bass boost
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Customer Q&A
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Very good amp.! Very clear and powerful without alot of money. Very surprised at how well it sounds and easy to hook up. Stacks up well to other more expensive amps I have looked into. Would highly recommend this unit!
Jeff from Ripley, NY