Pioneer GM-D8604 4-Channel Car Amplifier – Open Box

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$ 399.99 $249.99 (Sale ends on Sep 17, 2019)

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Pioneer GM-D8604 4-Channel Car Amplifier – Open Box

  • 1,200 Watts Max Power
  • Compact Design for Versatile Installation Options
  • Refined Class FD Design Offers Extreme Efficiency and High-Quality Sound

Only 1 left in stock

SKU: GMD8604 - Open Box Category:

Product Description

Pioneer GM-D8604 4-Channel Car Amplifier – Open Box

The sharp-looking Pioneer GM-D8604 4-channel amplifier can send 100 watts RMS to each of your front and rear speakers, for powerful music that’ll get you and your car rockin’. Highly efficient Class D technology keeps this powerful amp running as cool as it looks, and allows for a compact chassis that fits in a lot of out-of-the-way spaces. If you’re building a big system in stages, you can use this versatile amp at first to drive a pair of speakers with the front two channels while bridging the rear channels together to power a subwoofer with up to 300 watts RMS. Later on, you can get Pioneer’s big mono amp to drive your subs, and switch this amp over to run all four of your full-range speakers.

Big Power, Small Size

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.

Improved Circuit Design

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.

Variable Low Pass and High Pass Filter

For extra flexibility, variable LPF and HPF make audio frequency more adjustable according to subwoofer characteristics and personal listening preferences. The GM-D8604 LPF and HPF are adjustable from 40 Hz to 500 Hz.

Speaker Level Inputs

What, you DON’T own a Pioneer headunit? Well, we won’t hold it against you. In fact we’ll even help you build onto your system. 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. So, the install goes faster, you save money, and you’ve got a Pioneer amp in your vehicle.

Additional Information

Weight 4.5 kg
Dimensions 85 x 290 x 210 mm
Main Features

Amplifier Class – Class FD
Load Impedance Allowance (Ω) – 1 to 8
Bridgeable – Yes
Protection Control System – Yes
MOSFET Output Selection – Yes
Balanced Isolator Input Circuit – Yes
RCA Inputs – 4-Ch.
RCA Outputs (Pass-Through) – Yes
Speaker Level Input – Yes
Speaker Line Input Turn-On Sensor – Yes
Hi-Volt Input Level Control – 200 mV to 6.5 V
Terminal Type – Block
Crossover Type – Variable HPF/LPF
Crossover Frequency – 40 Hz to 500 Hz
Crossover Slope – -12 dB/oct.
Bass Boost Frequency – 50 Hz
Bass Boost Level – 0 dB to 18 dB


Number of Channels – 4/3/2
Maximum Power Output – 1,200 W
Continuous Power Output (1 Ω, ≤ 1% THD+N) – 125 W x 4
Continuous Power Output (2 Ω, ≤ 1% THD+N) – 150 W x 4
Continuous Power Output (4 Ω, ≤ 1% THD+N) – 100 W x 4
Continuous Power Output Bridged (4 Ω) – 300 W x 2
Frequency Response – 10 Hz to 35 kHz
Total Harmonic Distortion (4 Ω) – < 0.05% (1 kHz) Signal-to-Noise Ratio (IHF-A Weighted, at 1 kHz) - > 95 dB

Mobile Amplifier Channels

4 Channel

Mobile Amplifier Class

Class FD

Mobile Amplifier Fuse Rating


Mobile Amplifier RMS

201 to 350 watts


Open Box

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Pioneer 1 Year Manufacturers Warranty


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