Pioneer GM-DX871 GM Digital Series 800W RMS x 1 at 1-Ohms, Class-D Mono Subwoofer Car Amplifier
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What's Inside?
- • 8" Speaker wire to RCA input adapter
- • Mono subwoofer amplifier
- • Wired Bass Boost Remote
- • 16' Bass Boost Remote cable (RJ-14 plug on both ends)
- • (2) 40-amp ATO fuses (installed)
- • (4) 3/4" Screws
- • (2) 3/8" Screws
- • 3mm Allen wrench
- • Warranty information
- • Owner's Manual
Why Choose Pioneer GM-DX871 Mono Subwoofer Amplifier?
Unleash Powerful Bass Anywhere You Drive
Experience the deep, hard-hitting bass your system deserves with this 800W RMS Class D Mono Amplifier. Delivering an impressive 800 watts RMS at 1 ohm, it provides the clean, powerful output needed to bring your subwoofer to life. With efficient Class D technology, adjustable bass controls, and a wired bass remote, it's the perfect upgrade for American drivers who want powerful, customizable bass on every commute, road trip, and weekend cruise.
Big Power. Clean Performance.
Take your car audio to the next level with an amplifier engineered for serious bass lovers. Featuring 800W RMS at 1 ohm, premium gold-plated RCA connections, and built-in low-pass filtering with bass boost, this amplifier delivers strong, distortion-free low frequencies. Speaker-level inputs also make it easy to integrate with factory stereos, giving you premium sound without replacing your original head unit.
Built for Deep Bass and Everyday Reliability
Whether you're upgrading your daily driver or building a competition-inspired sound system, this Class D mono amplifier delivers the performance you need. Its high-efficiency design minimizes heat while maximizing power, producing rich, controlled bass with exceptional reliability.
Turn Every Drive into a Bass Experience
Feel every beat with an amplifier designed to produce powerful, room-shaking bass without sacrificing sound quality. Combining 800W RMS output, adjustable bass tuning, premium signal connections, and an easy-to-use wired bass remote, this amplifier gives you complete control over your listening experience.
Frequently Asked Questions (FAQ)
- • Why does the amplifier turn on but the subwoofer doesn't play?
This is commonly caused by incorrect subwoofer wiring, loose RCA connections, or crossover settings that block the signal. Verify all wiring and make sure the low-pass filter is configured correctly.
- • Why does it go into protect mode after a few minutes?
Protect mode is usually triggered by overheating, a speaker impedance that is too low, or a wiring short. Check the subwoofer load, inspect the wiring, and make sure the amplifier has proper ventilation.
- • Why is my bass output much lower than expected?
Low bass output is often caused by incorrect gain settings, reversed subwoofer polarity, or improper enclosure design. Adjust the amplifier settings and verify the enclosure matches the subwoofer's specifications.
- • Can I connect two subwoofers to this amplifier?
Yes, provided the combined impedance stays within the amplifier's supported range. Always wire the subwoofers according to the recommended configuration in the owner's manual.
- • Why does the bass cut out when I turn the volume up?
This can happen if the amplifier is clipping, overheating, or experiencing a voltage drop. Inspect your electrical system and reduce the gain if distortion occurs at high volume.
- • Why does it get very hot during normal use?
Some heat is expected, but restricted airflow or operating below the recommended impedance can cause excessive temperatures. Install the amplifier in a well-ventilated location and use the proper speaker load.
- • Why do I hear a whining noise that changes with engine speed?
This is usually caused by a grounding issue or electrical interference entering the audio system. Improving the ground connection and routing RCA cables away from power wires often eliminates the noise.
- • What should I set the low-pass crossover to?
Many users start with a low-pass setting between 80 Hz and 100 Hz for smooth bass integration. Fine-tune the crossover based on your speakers and personal listening preference.
- • Why does it keep blowing its fuse?
A blown fuse often indicates a shorted power cable, incorrect wiring, or an internal electrical fault. Inspect the installation carefully before replacing the fuse with one of the correct rating.
- • Can I use this with a factory head unit?
Yes, as long as the amplifier receives a compatible input signal through the appropriate connections or adapters. Many factory audio systems can be upgraded without replacing the original radio.
- Maximum Power : 1600 Watts
- Number of Channels : 1
- Frequency Response : 10-240 Hz
- Amplifier Class : D
- Fuse Rating : 40x2 A
- Promo : Yes
Features:
- Massive 800W RMS at 1 Ohm: Delivers an impressive 800 watts RMS at 1 ohm, giving your subwoofer the hard-hitting bass and powerful performance American car audio enthusiasts demand.
- Efficient Class D Technology: Engineered with advanced Class D circuitry to provide exceptional power output while reducing heat buildup and maximizing energy efficiency.
- Deep Bass Fine-Tuning: The built-in variable low-pass filter and adjustable bass boost let you dial in rich, clean low frequencies for the perfect bass response in any vehicle.
- Factory Stereo Ready: Speaker-level inputs make installation simple, allowing seamless integration with factory head units that don't have RCA outputs.
- Premium Gold-Plated Connections: Gold-plated RCA terminals improve signal transfer and help reduce interference for cleaner, more reliable audio performance.
- Convenient Wired Bass Remote: Adjust your subwoofer output instantly from the driver's seat, making it easy to match the bass level to your music or driving style.
- Built for American Roads: Designed to deliver dependable, high-output bass for daily commuting, cross-country road trips, and powerful custom car audio systems across the USA.
Specifications:
- CEA-2006 Compliant: Yes
- Allowable Load Impedance: 1 ohm to 8 ohm allowable
- Avg Current Consumption (amps x #ch): 2.4 A x 1-Channel - 4 Ohm / 5.7 A x 1-Channel - 1 Ohm / 3.6 A x 1-Channel - 2 Ohm
- Bass Boost: 50 Hz - Frequency
- Continuous-Power-Output: 300 W RMS x 1-Channel - 4 Ohm / 800 W RMS x 1-Channel - 1 Ohm / 500 W RMS x 1-Channel - 2 Ohm
- Crossover Network Subwoofer Channel: LPF - 40 Hz-240 Hz
- Crossover Network Subwoofer Slope: -12dB/oct
- Frequency Response – Subwoofer Channel: 10 Hz to 240 Hz
- Frequency Response Channel: 10 Hz to 240 Hz (+0dB,-3dB) A/B Ch
- Fuse Rating: 40A x 2
- Maximum Power Output: 600 W x 1-Channel (4 Ohm) / 1600 W x 1-Channel (1 ohm)
- RCA Preamp Outputs: 2-Channel
- Signal to Noise: 75 dBA (Reference: 1 W into 4 ohm)
- THD - Subwoofer: =/< 1% ( 20 Hz to 240 Hz)
- Bass Boost Remote: Yes
- Class: D
- Grounding System: Negative
- High Quality Audio Components: Yes
- Power Source: 14.4V (10.8 V to 15.1 V allowable)
- Protection Control system: Yes
- Terminal Type: Block
- UPC: 884938421836
- Weight: 8
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.
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Write a review!
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Running this with my 12-inch Kicker sub. It's pushing the sub hard, delivering powerful lows and loud output. Would love to try it with a 1-ohm sub if available.
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I don’t how Pioneer was able to do it but I am really shocked with its 1-ohm stable feature. Really great sound powering up my sub. Bass boost is amazing. So much power with the 500 Watts @ 2 ohms while running my sub.
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Fantastic amplifier for Pioneer as always. Good price, good sound quality. Easy to set up in my truck.
