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  1. Home
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  3. Discontinued Pioneer Car Audio & Electronics
  4. Discontinued Pioneer Car Amplifiers
  5. Discontinued Pioneer 4-Channel Amplifiers

Discontinued Pioneer 4-Channel Amplifiers

Pioneer’s 4-channel amplifiers offer balanced, dynamic sound for every track.

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Product Type
Price Range
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
Amplifier Key Features
Amplifiers can offer a diverse array of features. If you select more than one feature, then you will view amplifiers that have ALL features selected. These include speaker-level inputs that facilitate seamless integration with factory audio systems, Bluetooth connectivity suitable for ATV/UTV or Classic vehicle setups, built-in DSPs that provide enhanced control over your audio signal, and a host of other functionalities to explore.
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Remote bass/level controller
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Amp Bluetooth Connectivity
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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You are currently viewing discontinued products.

Pioneer GM-D8604 (Ships as 2019 model: Pioneer GM-D8704)

600W Class FD 4-Channel GM Digital Series Amplifier

GM-D8604 big DISCONTINUED
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Pioneer GM-D8604 (Ships as 2019 model: Pioneer GM-D8704)

600W Class FD 4-Channel GM Digital Series Amplifier

• 100W x 4-Chan. @ 4 ohm
• 150W x 4-Chan. @ 2 ohm
• 125W x 4-Chan. @ 1 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 4 Gauge Power and Ground Inputs
• High Power Capability with Small Size

46

• 100W x 4-Chan. @ 4 ohm
• 150W x 4-Chan. @ 2 ohm
• 125W x 4-Chan. @ 1 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 4 Gauge Power and Ground Inputs
• High Power Capability with Small Size

Pioneer GM-A4604

480W Peak (240W RMS) 4-Channel A Series Bridgeable Class AB 2-Ohm Stable Car Amplifier

GM-A4604 big DISCONTINUED
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Pioneer GM-A4604

480W Peak (240W RMS) 4-Channel A Series Bridgeable Class AB 2-Ohm Stable Car Amplifier

• RMS: 40W x 4 @ 4 ohm, 60W x 4 @ 2 ohm, 120W x 2 @ 4 ohm
• Total Peak Power: 480W
• CEA-2006 Compliant
• Dimensions: 12-1/2"W x 8-1/2"L x 2-3/8"H

7

• RMS: 40W x 4 @ 4 ohm, 60W x 4 @ 2 ohm, 120W x 2 @ 4 ohm
• Total Peak Power: 480W
• CEA-2006 Compliant
• Dimensions: 12-1/2"W x 8-1/2"L x 2-3/8"H

Pioneer GM-A6604

760W Peak (360W RMS) 4-Channel A Series Bridgeable Class AB 2-Ohm Stable Car Amplifier

GM-A6604 big DISCONTINUED
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Pioneer GM-A6604

760W Peak (360W RMS) 4-Channel A Series Bridgeable Class AB 2-Ohm Stable Car Amplifier

• RMS: 60W x 4 @ 4 ohm, 90W x 4 @ 2 ohm, 180W x 2 @ 4 ohm
• Total Peak Power: 760W
• CEA-2006 Compliant
• Dimensions: 13-3/4"W x 8-1/2"L x 2-1/2"H

8

• RMS: 60W x 4 @ 4 ohm, 90W x 4 @ 2 ohm, 180W x 2 @ 4 ohm
• Total Peak Power: 760W
• CEA-2006 Compliant
• Dimensions: 13-3/4"W x 8-1/2"L x 2-1/2"H

Pioneer GM-6400F

600W Max, 4-Channel Amplifier

GM-6400F big DISCONTINUED
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Pioneer GM-6400F

600W Max, 4-Channel Amplifier

GM Series • Bridgeable 4-Channel • Class AB Amplifier • 60 Watts RMS x4 Channel @ 4 ohm • 75 Watts RMS x 4 Channel @ 2 ohm • Speaker Level Inputs • LPF/HPF Crossovers • Gain Caution Feature • H Shaped Chassis

17

GM Series • Bridgeable 4-Channel • Class AB Amplifier • 60 Watts RMS x4 Channel @ 4 ohm • 75 Watts RMS x 4 Channel @ 2 ohm • Speaker Level Inputs • LPF/HPF Crossovers • Gain Caution Feature • H Shaped Chassis

Pioneer GM-A6604 Open Box Complete (Very Good, Used)

760W Peak (360W RMS) 4-Channel A Series Bridgeable Class AB 2-Ohm Stable Car Amplifier

GM-A6604 big DISCONTINUED
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Pioneer GM-A6604 Open Box Complete (Very Good, Used)

760W Peak (360W RMS) 4-Channel A Series Bridgeable Class AB 2-Ohm Stable Car Amplifier

• Item Condition: Open Box
• RMS: 60W x 4 @ 4 ohm, 90W x 4 @ 2 ohm, 180W x 2 @ 4 ohm
• Total Peak Power: 760W
• CEA-2006 Compliant
• Dimensions: 13-3/4"W x 8-1/2"L x 2-1/2"H

• Item Condition: Open Box
• RMS: 60W x 4 @ 4 ohm, 90W x 4 @ 2 ohm, 180W x 2 @ 4 ohm
• Total Peak Power: 760W
• CEA-2006 Compliant
• Dimensions: 13-3/4"W x 8-1/2"L x 2-1/2"H

Pioneer GM-D8604 Open Box Complete (Very Good, Used)

600W Class FD 4-Channel GM Digital Series Amplifier

GM-D8604 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Pioneer GM-D8604 Open Box Complete (Very Good, Used)

600W Class FD 4-Channel GM Digital Series Amplifier

• Item Condition: Open Box
• 100W x 4-Chan. @ 4 ohm
• 150W x 4-Chan. @ 2 ohm
• 125W x 4-Chan. @ 1 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 4 Gauge Power and Ground Inputs
• High Power Capability with Small Size

• Item Condition: Open Box
• 100W x 4-Chan. @ 4 ohm
• 150W x 4-Chan. @ 2 ohm
• 125W x 4-Chan. @ 1 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 4 Gauge Power and Ground Inputs
• High Power Capability with Small Size

Pioneer GM-D9500F

800W Max Class FD 4-Channel Amplifier (Full-Range Class D)

GM-D9500F big DISCONTINUED
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Pioneer GM-D9500F

800W Max Class FD 4-Channel Amplifier (Full-Range Class D)

FD Series Class D 4-Channel Car Amplifier • 75W x 4 Chan. @ 4 Ohm • 100W x 4 Chan. @ 2 Ohm • 800W Max • 4/3/2 Channel Operation • Speaker-Level Inputs • Compression-Type Terminals • LPF • HPF

62

FD Series Class D 4-Channel Car Amplifier • 75W x 4 Chan. @ 4 Ohm • 100W x 4 Chan. @ 2 Ohm • 800W Max • 4/3/2 Channel Operation • Speaker-Level Inputs • Compression-Type Terminals • LPF • HPF

Pioneer GM-A6604 Like New, Demo Product

760W Peak (360W RMS) 4-Channel A Series Bridgeable Class AB 2-Ohm Stable Car Amplifier

GM-A6604 big DISCONTINUED
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Pioneer GM-A6604 Like New, Demo Product

760W Peak (360W RMS) 4-Channel A Series Bridgeable Class AB 2-Ohm Stable Car Amplifier

Like new Damaged Package
• RMS: 60W x 4 @ 4 ohm, 90W x 4 @ 2 ohm, 180W x 2 @ 4 ohm
• Total Peak Power: 760W
• CEA-2006 Compliant
• Dimensions: 13-3/4"W x 8-1/2"L x 2-1/2"H

Like new Damaged Package
• RMS: 60W x 4 @ 4 ohm, 90W x 4 @ 2 ohm, 180W x 2 @ 4 ohm
• Total Peak Power: 760W
• CEA-2006 Compliant
• Dimensions: 13-3/4"W x 8-1/2"L x 2-1/2"H

Pioneer Premier GM-6150F

600 watts Max, 4-Channel Amplifier

GM-6150F big DISCONTINUED
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Pioneer Premier GM-6150F

600 watts Max, 4-Channel Amplifier

4-Channel Power Amplifier • 60W x 4 chan. @ 4 Ohm • 75W x 4 chan. @ 2 Ohm • screw type speaker terminals • 4-channel RCA inputs • preamp outputs • MOSFET power supply • CEA-2006 compliant

1

4-Channel Power Amplifier • 60W x 4 chan. @ 4 Ohm • 75W x 4 chan. @ 2 Ohm • screw type speaker terminals • 4-channel RCA inputs • preamp outputs • MOSFET power supply • CEA-2006 compliant

Pioneer Premier PRS-D4100F

1200W Max, Premier PRS-Series 4-Channel Full-Range Class FD Amplifier with ICEpower Technology

PRS-D4100F big DISCONTINUED
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Pioneer Premier PRS-D4100F

1200W Max, Premier PRS-Series 4-Channel Full-Range Class FD Amplifier with ICEpower Technology

Premier PRS ICE 4-Channel Amplifier • 75 watts RMS x 4 chan. @ 4 ohm • 150 watts RMS x 4 chan. @ 2 ohm • Speaker Level Inputs • Gain Control • S/N Ratio: 100 dB • Class D ICEpower Technology

2

Premier PRS ICE 4-Channel Amplifier • 75 watts RMS x 4 chan. @ 4 ohm • 150 watts RMS x 4 chan. @ 2 ohm • Speaker Level Inputs • Gain Control • S/N Ratio: 100 dB • Class D ICEpower Technology

Pioneer GM-4300F

4-Channel Amplifier

GM-4300F big DISCONTINUED
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Pioneer GM-4300F

4-Channel Amplifier

4-Channel Power Amplifier • 40W x 4 chan. @ 4 Ohm • 50W x 4 chan. @ 2 Ohm • screw type speaker terminals • MOSFET power supply • speaker level inputs/preamp outputs • oversized power terminals • CEA-2006 compliant

4-Channel Power Amplifier • 40W x 4 chan. @ 4 Ohm • 50W x 4 chan. @ 2 Ohm • screw type speaker terminals • MOSFET power supply • speaker level inputs/preamp outputs • oversized power terminals • CEA-2006 compliant

Pioneer GM-X564

No picture DISCONTINUED
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Pioneer GM-X564

60 watts x 4 into 2 ohm • 120 watts x 2 bridged • variable high-pass/low-pass crossovers • balanced isolator input circuit • preamp outputs

60 watts x 4 into 2 ohm • 120 watts x 2 bridged • variable high-pass/low-pass crossovers • balanced isolator input circuit • preamp outputs

Pioneer Premier PRS-A900

4-Channel Premier PRS Pro Series Amplifier with Filterless Design for Sonic Purity

PRS-A900 big DISCONTINUED
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Pioneer Premier PRS-A900

4-Channel Premier PRS Pro Series Amplifier with Filterless Design for Sonic Purity

PRS Series 4-Channel Class AB Car Amplifier • 50W x 4 chan. @ 4 ohm • 50W x 4 chan. @ 2 ohm • 100W x 2 chan. @ 4 ohm • 100W x 4 chan. Max • Separate left and right channels • Independent left and right power supplies

2

PRS Series 4-Channel Class AB Car Amplifier • 50W x 4 chan. @ 4 ohm • 50W x 4 chan. @ 2 ohm • 100W x 2 chan. @ 4 ohm • 100W x 4 chan. Max • Separate left and right channels • Independent left and right power supplies

Pioneer Premier PRS-D4200F

1200W Max, 4-Channel Premier PRS Series Full-Range Class D with ICEpower Technology Amplifier

PRS-D4200F big DISCONTINUED
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Pioneer Premier PRS-D4200F

1200W Max, 4-Channel Premier PRS Series Full-Range Class D with ICEpower Technology Amplifier

Premier PRS Series 4-Channel Full-Range Class D Car Amplifier • 75W x 4 chan. @ 4 ohm • 150W x 4 chan. @ 2 ohm • 300W x 2 chan. @ 4 ohm • 300W x 4 chan. Max • ICEpower gives the amplifier incredible efficiency

3

Premier PRS Series 4-Channel Full-Range Class D Car Amplifier • 75W x 4 chan. @ 4 ohm • 150W x 4 chan. @ 2 ohm • 300W x 2 chan. @ 4 ohm • 300W x 4 chan. Max • ICEpower gives the amplifier incredible efficiency

Pioneer GM-D8704( Open Box )

600W Class FD 4-Channel GM Digital Series Amplifier w/ Wired Bass Boost Remote

GM-D8704 big DISCONTINUED
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Pioneer GM-D8704( Open Box )

600W Class FD 4-Channel GM Digital Series Amplifier w/ Wired Bass Boost Remote

• 100W x 4-Chan. @ 4 ohm
• 150W x 4-Chan. @ 2 ohm
• 125W x 4-Chan. @ 1 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 4 Gauge Power and Ground Inputs
• High Power Capability with Small Size

• 100W x 4-Chan. @ 4 ohm
• 150W x 4-Chan. @ 2 ohm
• 125W x 4-Chan. @ 1 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 4 Gauge Power and Ground Inputs
• High Power Capability with Small Size

Pioneer GM-D1004 OPEN BOX INCOMPLETE

400W 4-Channel GM Digital Series Class FD Amplifier

GM-D1004 big DISCONTINUED
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Pioneer GM-D1004 OPEN BOX INCOMPLETE

400W 4-Channel GM Digital Series Class FD Amplifier

Used and Installed. Missing RCA's and hardware.
• RMS Power: 45W x 4 @ 4 ohm, 45W x 4 @ 2 ohm
• Total Peak Power: 400W
• CEA-2006 Compliant
• Dimensions: 7-1/8" W x 2-1/2" D x 1-1/2" H

Used and Installed. Missing RCA's and hardware.
• RMS Power: 45W x 4 @ 4 ohm, 45W x 4 @ 2 ohm
• Total Peak Power: 400W
• CEA-2006 Compliant
• Dimensions: 7-1/8" W x 2-1/2" D x 1-1/2" H

Pioneer GM-A6604-OPEN BOX

360W RMS 4-Channel GM Series Bridgeable Car Amplifier

GM-A6604-2 big DISCONTINUED
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Pioneer GM-A6604-OPEN BOX

360W RMS 4-Channel GM Series Bridgeable Car Amplifier

• RMS: 60W x 4 @ 4 ohm, 90W x 4 @ 2 ohm, 180W x 2 @ 4 ohm
• Total Peak Power: 760W
• CEA-2006 Compliant
• Dimensions: 13-3/4"W x 8-1/2"L x 2-1/2"H

• RMS: 60W x 4 @ 4 ohm, 90W x 4 @ 2 ohm, 180W x 2 @ 4 ohm
• Total Peak Power: 760W
• CEA-2006 Compliant
• Dimensions: 13-3/4"W x 8-1/2"L x 2-1/2"H

Pioneer GM-A4604-OPEN BOX

240W RMS 4-Channel GM Series Bridgeable Car Amplifier

GM-A4604-2 big DISCONTINUED
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Pioneer GM-A4604-OPEN BOX

240W RMS 4-Channel GM Series Bridgeable Car Amplifier

• RMS: 40W x 4 @ 4 ohm, 60W x 4 @ 2 ohm, 120W x 2 @ 4 ohm
• Total Peak Power: 240W
• CEA-2006 Compliant
• Dimensions: 12-1/2"W x 8-1/2"L x 2-3/8"H

• RMS: 40W x 4 @ 4 ohm, 60W x 4 @ 2 ohm, 120W x 2 @ 4 ohm
• Total Peak Power: 240W
• CEA-2006 Compliant
• Dimensions: 12-1/2"W x 8-1/2"L x 2-3/8"H

Pioneer GM-6200F

4-Channel Amplifier

GM-6200F big DISCONTINUED
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Pioneer GM-6200F

4-Channel Amplifier

4-Channel Power Amplifier • 60W x 4 chan. @ 4 Ohm • 75W x 4 chan. @ 2 Ohm • screw type speaker terminals • MOSFET power supply • speaker level inputs/preamp outputs • oversized power terminals • CEA-2006 compliant

1

4-Channel Power Amplifier • 60W x 4 chan. @ 4 Ohm • 75W x 4 chan. @ 2 Ohm • screw type speaker terminals • MOSFET power supply • speaker level inputs/preamp outputs • oversized power terminals • CEA-2006 compliant

Pioneer GM-6500F

760W 4-Channel GM Series Car Amplifier w/ High-Level Speaker Inputs

GM-6500F big DISCONTINUED
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Pioneer GM-6500F

760W 4-Channel GM Series Car Amplifier w/ High-Level Speaker Inputs

• Bridgeable 4-Channel
• Class AB Amplifier
• 60 Watts RMS x4-Channel @ 4 ohm
• 85 Watts RMS x 4-Channel @ 2 ohm
• Speaker Level Inputs
• LPF/HPF Crossovers
• Gain Caution Feature
• H Shaped Chassis
• CEA-2006 Compliant Amplifier

5

• Bridgeable 4-Channel
• Class AB Amplifier
• 60 Watts RMS x4-Channel @ 4 ohm
• 85 Watts RMS x 4-Channel @ 2 ohm
• Speaker Level Inputs
• LPF/HPF Crossovers
• Gain Caution Feature
• H Shaped Chassis
• CEA-2006 Compliant Amplifier

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    Pioneer 4-Channel Amplifiers Information

    A 4 channel car amplifier from Pioneer will provide your vehicle with the power it requires. These amps can operate four channels and Pioneer is a leader in amplification solutions. Power your speakers with a Pioneer 4-channel amplifier for a great all around sound.
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