Pioneer GM-DX874 GM Digital Series 150W RMS x 4 at 2-Ohms, Class-D Full Range Car Amplifier
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What's Inside?
- • 4-Channel amplifier
- • (2) 30-amp ATO fuses (installed)
- • (2) 8" Speaker wire to RCA input adapters
- • Wired Bass Boost Remote
- • 16' Bass Boost Remote cable (RJ-14 plug on both ends)
- • (4) 3/4" Screws
- • (2) 3/8" Screws
- • 3mm Allen wrench
- • Warranty Information
- • Owner's Manual
Why Choose Pioneer GM-DX874 4-Channel Amplifier?
Experience Hi-Res Sound on Every Drive
Transform your daily commute with a Hi-Res Audio Certified 4-channel amplifier built to deliver exceptional clarity and powerful performance. Producing up to 150 watts RMS per channel at 2 ohms, it drives your speakers with clean, dynamic sound while built-in crossover controls let you fine-tune every note. Whether you're cruising through the city or taking on a cross-country road trip, this amplifier delivers the premium audio experience American drivers expect.
Power Your System with Precision
Give your vehicle the performance it deserves with a versatile 4-channel amplifier engineered for outstanding sound quality. Its flexible 4-channel, 3-channel, and bridged configurations make it easy to build the perfect audio system, while gold-plated RCA terminals and speaker-level inputs ensure reliable connectivity with both aftermarket and factory stereos. Complete with a wired bass remote, you'll enjoy powerful, customizable sound every time you hit the road.
Premium Performance for Every Playlist
Bring concert-quality audio to every journey with a high-performance Hi-Res Audio Certified amplifier designed for serious music lovers. Featuring powerful output, precision high-pass and low-pass filters, and seamless factory radio integration, it delivers crisp highs, rich mids, and controlled bass with remarkable clarity. Built for American drivers who demand reliable performance and exceptional sound, this amplifier makes every mile more enjoyable.
Frequently Asked Questions (FAQ)
- • Why does the amplifier keep blowing its fuse?
A blown fuse is usually caused by a short circuit, incorrect wiring, or using a fuse with the wrong rating. Inspect the power cable, ground connection, and speaker wiring before replacing the fuse.
- • Why are only two speakers producing sound?
This is often caused by incorrect channel wiring, damaged RCA cables, or improper balance and fader settings. Verify all speaker connections and audio source settings.
- • Can I bridge two channels to power a subwoofer?
Yes, if the amplifier supports bridged operation according to the owner's manual. Be sure the connected subwoofer meets the recommended impedance requirements.
- • Why does it make a popping sound when turning on?
A popping noise may result from incorrect remote turn-on wiring or improper amplifier gain settings. Checking the wiring sequence and adjusting the gain can often reduce startup noise.
- • Why does it randomly shut off while driving?
Loose power connections, overheating, or low battery voltage are common causes. Inspect all wiring and ensure the charging system is supplying stable voltage.
- • Why do my speakers produce a humming noise?
Humming is typically caused by a poor ground connection or signal interference from nearby power cables. Improving the amplifier ground and rerouting RCA cables usually resolves the issue.
- • How do I set the gain correctly?
The gain should match the output voltage of your head unit rather than act as a volume control. Setting it too high can introduce distortion and reduce speaker lifespan.
- • Why do the speakers sound quiet even though the amplifier is on?
Incorrect crossover settings, low gain adjustments, or weak RCA signal output can reduce volume. Verify the input source and adjust the amplifier controls according to the system requirements.
- • Can it handle aftermarket component speakers?
Yes. It is suitable for powering many aftermarket coaxial and component speaker systems when matched with the proper impedance and power ratings.
- • Why does the sound become distorted after driving for a while?
Heat buildup, amplifier clipping, or voltage drops from the electrical system can reduce audio quality over time. Improving ventilation and ensuring stable vehicle voltage can help maintain consistent performance.
- Maximum Power : 1200 Watts
- Number of Channels : 4
- Frequency Response : 10-50000 Hz
- Amplifier Class : D
- Fuse Rating : 30x2 A
Features:
- Hi-Res Audio Certified Performance: Experience exceptional sound clarity with Hi-Res Audio certification, delivering every detail of your favorite music for an immersive listening experience that American audiophiles will appreciate.
- Powerful 4-Channel Output: Produces up to 150 watts RMS per channel at 2 ohms, giving your front and rear speakers the clean, dynamic power needed for bold, distortion-free sound.
- Flexible System Configuration: Supports 4-channel, 3-channel, and bridged operation, making it easy to build everything from an upgraded factory system to a powerful custom audio setup.
- Precision Crossover Controls: Built-in variable high-pass and low-pass filters allow you to fine-tune speaker and subwoofer performance for balanced, studio-quality sound inside your vehicle.
- Premium Gold-Plated Connectivity: High-quality gold-plated RCA terminals ensure a strong, low-noise signal path for reliable performance and enhanced audio fidelity.
- Easy Factory Radio Integration: Speaker-level inputs with signal sensing simplify installation into factory audio systems, making upgrades quick and hassle-free without requiring RCA outputs.
- Driver-Friendly Bass Control: The included wired bass remote lets you adjust subwoofer output instantly, giving you the perfect amount of bass whether you're cruising downtown or hitting the open American highway.
Specifications:
- 4-Channel Class D Car Amplifier
- Hi-Res Audio Certified
- RMS Power Output: 150W x 4 @ 2 Ohms (1% THD)
- RMS Power Output: 100W x 4 @ 4 Ohms (1% THD)
- RMS Power Output: 125W x 4 @ 1 Ohm (1% THD)
- Bridged RMS Power Output: 300W x 2 @ 4 Ohms
- Maximum Power Output: 200W x 4 @ 4 Ohms
- Maximum Bridged Power Output: 600W x 2 @ 4 Ohms
- Allowable Load Impedance: 1 Ohm to 8 Ohms
- Frequency Response: 10 Hz to 50 kHz
- Variable High-Pass Filter: 40 Hz to 500 Hz
- Variable Low-Pass Filter: 40 Hz to 500 Hz
- Crossover Slope: -12 dB/Octave
- Bass Boost Frequency: 50 Hz
- Total Harmonic Distortion (THD): ≤1%
- RCA Inputs: 4-Channel
- RCA Preamp Outputs: 2-Channel
- Speaker-Level Input with Signal Sensing: Yes
- Gold-Plated RCA Terminals: Yes
- Wired Bass Remote: Included
- Fuse Rating: 30A × 2
- Amplifier Class: Class D
- Product Category: D Series Amplifier
- Product Type: Car Amplifier
- UPC: 884938421843
- Weight: 6
- 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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This amp's legit! Compact and sounds awesome . This is the 4-channel amp I wish I had for my other cars. Perfect size for powering all my speakers. So far, it's been working great. And the price? Spot on value. Running 4 x 100-watt on my setup with zero distortion, clean highs too.
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So much power from this amp. Hooked my rear and front door speakers, and they are doing wonders now compared to the amp I was using before. Its sounds clean and does not easily distort when cranked up. Great option for full-range speakers.
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Pure 100 Watts in all of its four channels. Great for powering up both my front and rear speakers at the same time. Its a class D amp, so you’ll be sure of the amp’s power output to be more than enough for pushing the speakers.
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What a compact amp for its power. Make my speakers sound more alive. Reasonable price for what it can offer.
