Pioneer GM-D8604
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 Item# 34582 / Condition:  Brand New

Pioneer GM-D8604

1200W 4-Channel Class FD Bridgeable Car Audio Amplifier

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Regular Price:$240.00
Savings Of:$113.67
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What's Included:

  • Two 30 amp ATO fuses (installed)
  • Two 8" Speaker-level input adapters
  • Owner's manual (English/ French/ Spanish)
  • 3mm Allen wrench
  • 4-Channel amplifier
  • Four 5/8" Self-tapping screws

Product Highlights:

  • Improved Circuit Design
  • Sensitivity: 95 dB
  • Compact Design for Versatile Installation Options
  • Frequency Response: 10Hz-35kHz
  • 125W RMS x 4 @ 1 Ohm
  • 100W RMS x 4 @ 4 Ohms
  • 1200W Max Power
  • 125W RMS x 4 @ 2 Ohms
  • 300W RMS x 2 [Bridged] @ 4 Ohms
  • Refined Class FD Design Offers Extreme Efficiency and High-Quality Sound
  • Variable Low Pass and High Pass Filter
  • Speaker Level Inputs
  • Dimensions: 10-3/8" x 2-3/8" x 7-7/8"

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. Also, Pioneer's new digital amplifier circuit "Protection Control System" senses its internal temperature and automatically moderates input level. The GM-D8604'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.


Best Frequency Response 10-50k Hz
Fuse Rating 60
Low-Pass Crossover Frequency 40-500 Hz
Minimum Impedance Unbridged 1
Height (inches) 2-3/8
Depth (inches) 7-7/8
Low-Pass Slope (dB/octave) 12 dB/octave
Bass Boost No
Input Voltage 14.4v
Power at 2 Ohms (Watts x Channels) 150 x 4
Width (inches) 11
Bridged Power (Watts x Channels) 300 x 2
THD at Rated RMS Power 1%
Bass Boost Frequency N/A
Amplifier Class FD
High-Pass Slope (dB/octave) 12 dB/octave
Speaker Level Inputs RCA
RMS Power Output (Watts x Channels) 100 x 4
Peak Power Output (Watts x Channels) 600 x 2
Minimum Impedance Bridged 2
Signal to Noise Ratio 75 dB
High-Pass Crossover Frequency 40-500 Hz
Fan Cooled No
Preamp Outputs 1 pair
  • UPC: 884938193146
  • Weight: 29
*Warranty: 1 Year warranty.
1 Year warranty from implies that repairs must be returned to, not the manufacturer. More information can be found in our help section under returns & warranties.
What's not covered : Misuse, abuse, defacement, physical damage of any kind, and improper installation / operation. Video and multimedia equipment with damaged or cracked screens.Subwoofers and speakers are not warranted against being blown, burned or abused.

Do you own this product?  Write a review

   Allan From Dallas
This was a replacement for a phoenix gold 4 channel amp, 2004 vintage. Clearly the tech advanced significantly since then. Everything about the pioneer is better - it's more powerful, easier to install, has more headroom, uses less power, is lighter and sounds clearer. The small footprint and light weight made installation (in a regular cab F150) easy, the block connectors are easy to use and solid, and the amp is easy to fine tune. At the price point i think it is difficult to beat for a single-unit 4 channel amp.

   Suzanne From New Mexico
This amp has proved to be reliable. It has clean sound.