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PIONEER pio GM-D8704 Class FD 4-Channel Bridgeable Amplifier

4.6 out of 5 stars 192 ratings

$172.49
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Enhance your purchase

Item Dimensions LxWxH 8.46 x 9.92 x 2.36 inches
Manufacturer Pio
Brand Pioneer
Number of Channels 4

About this item

  • 1, 200 Watts Max Power
  • Compact Design for Versatile Installation Options
  • Refined Class FD Design Offers Extreme Efficiency and High-Quality Sound
New (7) from $172.49 & FREE Shipping.

Buy it with

  • PIONEER pio GM-D8704 Class FD 4-Channel Bridgeable Amplifier
  • +
  • BOSS Audio Systems KIT2 8 Gauge Amplifier Installation Wiring Kit - A Car Amplifier Wiring Kit Helps You Make Connections and
  • +
  • PIONEER TS-A6967S A-Series 6x9 Shallow 4-Way 450 Watts Max Power Black Car Audio Speakers (Pair)
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Customer Rating 4.6 out of 5 stars (192) 4.5 out of 5 stars (547) 4.4 out of 5 stars (395) 4.2 out of 5 stars (136) 4.6 out of 5 stars (531) 4.6 out of 5 stars (774)
Price $172.49 $174.95 $169.99 $127.99 $219.95 $199.95
Sold By EmaticDirect (WE TRACK SERIAL #s) Watts and Volts (we track SERIAL #s) Sound of Tri-State Inc SUPREME OUTLET Absolute Pro Music Amazing Dealzzz
Item Dimensions 8.46 x 9.92 x 2.36 inches 13.98 x 17.64 x 10.43 inches 13.3 x 4.9 x 11 inches 14.1 x 8.5 x 2.4 inches 12.99 x 9.06 x 4.33 inches 12.99 x 4.72 x 11.02 inches

Product Description

An amplifier shouldn’t take up too much space, especially in your car. The GM-D8704 might just be what you’re looking for. It combines a 1-Ohm stable circuit, installation flexibility and a superior high-power output. Pioneer’s new extra-efficient Class-D digital amplifiers mark a dramatic improvement in power output capability, yet are 50% smaller than the current GM-Series Class-AB amplifiers. That makes them more versatile in terms of installation as well as performance. To prevent circuit shutdown, Pioneer’s new digital amplifier circuit “Protection Control System” senses its internal temperature and automatically moderates input level accordingly. Stable, durable circuitry lessens the risk of high input power for the unit to achieve 1 Ω connection. This design enhances the flexibility to connect multiple subwoofers to a system. For extra flexibility, variable LPF and HPF make audio frequency more adjustable according to subwoofer characteristics and personal listening preferences. The GM-D8704 LPF and HPF are adjustable from 40 Hz to 500 Hz. What, you DON’T own a Pioneer head unit? Well, we won’t hold it against you. In fact we’ll even help you build onto your system. The GM-D8704’s speaker level inputs allow you to connect your OEM unit (or any unit that doesn’t have the typical RCA-type inputs) without having to buy add-on adapters. So, the install goes faster, you save money, and you’ve got a Pioneer amp in your vehicle.


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Customer reviews

4.6 out of 5 stars
4.6 out of 5
192 global ratings

Top reviews from the United States

Reviewed in the United States on July 21, 2019
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4.0 out of 5 stars Jack of all trades
Reviewed in the United States on July 21, 2019
There's no doubt about it, this amp is a tremendous value for what you pay for it on Amazon, the other big brand Japanese amps can't compete for the price. You have power, cool operation, 2 ohm bridged and 1 ohm stereo loads, a decent clipping feature to set gains, and a free bass knob.

Sound quality is not as crystal clear compared to the other 2 brands but when it is running 2 ohm stereo and 4 ohms bridged at full load its luke warm in comparison to the amp it replaced.

Cons: for me the finish on mine was not even all the way around and scratched easily to the bare metal, (use painters tape when mounting it) the angled terminals are junk (amazed they didn't strip at the angle I was trying to feed the wires)

In the end nothing as powerful would fit under the seat of my 2019 Crosstrek as this, and I'm not looking to pull my seat and get a replacement back in.
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Reviewed in the United States on September 9, 2019
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Reviewed in the United States on March 2, 2021
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Reviewed in the United States on August 26, 2019
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Reviewed in the United States on July 24, 2019
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Reviewed in the United States on March 17, 2019
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