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Pioneer GM-D8500M

1200W Max GM Digital Series Class D Monoblock Amplifier

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Pioneer GM-D9601

OUR PRICE: $199.99

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  • GM Series Class D Monoblock Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 300 watts x 1 chan.
    • 2 ohms: 600 watts x 1 chan.
  • Max power output: 1200 watts x 1 chan.
  • MOSFET power supply
  • LED power indicator
  • Wired remote bass level control included
  • Variable bass boost (0-12 dB at 50 Hz)
  • Compact amplifier design
  • Balanced isolator input circuit
  • Speaker-level inputs with included high-level to RCA adapter
  • Heavy duty aluminum alloy heatsink
  • Chrome-plated RCA level inputs
  • Chrome-plated screw terminals
  • Variable low-pass filter (40-240 Hz, 12 dB/octave)
  • CEA-2006 compliant amplifier
  • Frequency response: 10-240 Hz
  • Dimensions: 11-3/8"L x 7-7/8"W x 2-1/4"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 1-year SonicElectronix.com warranty

Product History:

Pioneer GM-D9601 thumbnail
(newest, current model)
Pioneer GM-D8500M thumbnail
(previous model, replaced by Pioneer GM-D9601)
Pioneer GM-D8400M thumbnail
(previous model, replaced by Pioneer GM-D8500M)

Power Specifications - Subwoofer Channel

RMS Power @ 4 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
300 watts x 1 channels
RMS Power @ 2 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
600 watts x 1 channels
Peak Power Output
This form of power rating refers to the maximum amount of power an electronic device can handle or output in an instant without damage. Often times this maximum is achieved during a brief musical burst, such as a drum accent or low bass hit. Some manufacturers display peak power ratings on the face of their products to increase the appeal to consumers. The RMS power rating is more accurate, and we recommend using it for product comparison. This is the peak power output for the amplifier's 5th channel.
1200 watts x 1 channels

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
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.

D
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.
1 - Mono
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.

1200 watts
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.

600 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
4 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
2 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Not Bridgeable
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
0.03%
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Yes - with included adapter
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.
No
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.

Low-pass (LP)
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

40 - 240 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
80 dB
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 12 dB
Bass/Gain Remote
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.
Yes
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
No
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
30A x 2 
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

Yes
Strappable
Some amplifiers can be "strapped" together in order to increase the output of a single audio channel. These amplifiers feature RCA preamp outputs, allowing you to pass the signal directly from one amp to the other to ensure consistency.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
85%
4 Star
12%
3 Star
3%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.8
Value
4.8
Features
4.4
Design
4.6
Usability
4.8
Kamil

Oceanside, California

Overall
Durability
Value
Features
Design
Usability
Pioneer GM-D8500M

December 3, 2012

I dont have huge experience with car audio but I always preferred Pioneer brand. I got this amplifier in my 350z roadster and 10" TS-SW2501S4 1200W, 4 Ohm sub-woofer, to my stock Bose audio system. Cant ask for more, it is sweet. Also the amp stays cool all the time no matter how loud you are.

0 of 0 found this helpful

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JAMES

JACKSONVILLE, FL

Overall
Durability
Value
Features
Design
Usability
Second Time Buyer

August 19, 2012

Owned this amp before, had it powering a 12" Orion Cobalt (CO124S) and it made some of my buddies' cars with 2 12s sound like nothing!! This was definitely a go to when I thought about what I was going to do next.

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Frank

Dallas, TX

Overall
Durability
Value
Features
Design
Usability
2nd one of these I've bought.

July 29, 2012

I got one of these back last year for a system and loved it. Now that I've moved on and got another truck it was time for another system. No questions asked I went straight back to Sonic and placed an order for another 8500 and all the goodies to hook it up. The first one I got was powering a 10in Alpine Type-S at 300w; this one is powering a 12in Alpine Type-R at 600W/2ohms and it's running strong with no issues. This little guy is tough too, I've got it mounted to the back of the seat in my SUV and I've had all sorts of stuff bang into it (not on purpose) and it hardly has a scratch on it.

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Tyler

Canada

Overall
Durability
Value
Features
Design
Usability
wicked amp!

June 26, 2012

i have this amp powering two 12" svc pioneer subs, 300watts rms each wired to 2 ohms in a 1.68 cubic foot box (for each sub) ported and tuned to 45 hz, and they slam so hard i cant even use my rear veiw mirror anymore, nor my side mirrors! my whole car shakes so much i cant even have a drink in my cup holder without some slpashing out! this amp is way under rated, would recomend to anyone who wants a fair priced amp that rocks very hard and does NOT need an alternator upgrade to power! im running it with stock 105 amp alternator, new battery and big 3 upgrade with 4 gauge wire and no problems what so ever. and im powering 2 other amps for my 8 speakers also! also! these things are tough as a rock! i also have the gm-d7500m amp and my trunk leaked a bit (fixed now haha) and when i opened up the trunk, the equivilent of a whole bucket of water spilled dirrectly on top of it, and no sparks, no shorts, no nothing! it was perfeclty fine! like it was right on top of it! tough as a rock! buy it! you wont be sorry!

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Tyrus

Lawrenceville, PA

Overall
Durability
Value
Features
Design
Usability
amazing amp

March 18, 2012

This amp looks perfect and puts out amazing power, i have this powering 2 12" power acoustics and they SLAM. This amp looks amazing and produces awesome sound and doesn't over heat.

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kiley

greensboro, PA

Overall
Durability
Value
Features
Design
Usability
not that good

February 23, 2012

I had it powering a jl w6 and it just wasnt enough. Even though they said it would be nice little amp if your powering a small sub though

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Thomas

Bluffton, SC

Overall
Durability
Value
Features
Design
Usability
WOW

December 29, 2011

Picked up one of these bad boys at wal**rt about a year ago. This amp is a beast for the size. 800 watts does not get any more powerful than this. If you are looking for a good quality amp and a decent price, this is it.

0 of 0 found this helpful

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RON

Chambersburg, PA

Overall
Durability
Value
Features
Design
Usability
amazing sound

December 8, 2011

I've had this amp for over 6 months and its simply amazing for the price. Running 2 Alpine 300rms 10s under rear seat of my truck. Wired 2ohms and never over heats!

0 of 0 found this helpful

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Murc

SoCal

Overall
Durability
Value
Features
Design
Usability
Better than my kicker DX

November 25, 2011

I replaced a kicker amp with this and very happy with it. Good power and it sounds very nice for a fraction of what the kicker amp costs.

0 of 0 found this helpful

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Don

Canada

Overall
Durability
Value
Features
Design
Usability
Pioneer GM-D8500M

November 22, 2011

Clean sound, great looking, recommended.

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torcher

Australia

Overall
Durability
Value
Features
Design
Usability
Pioneer GM-D8500M

November 14, 2011

I own a JL audio w3 sub. now if you know much about subs u know the w3 is a powerful sub. i bought the pioneer mono block to run a single w3 and it does the job marviously i would reccomend this amp to anyone looking for maximum power. Great product i have nothing to fault about the amp.

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Bruce

Australia

Overall
Durability
Value
Features
Design
Usability
Great sound

November 7, 2011

I bought 2 of these amps to run 2 pioneer 12 inch subs, they work great. Haven't turned them past normal setting and they crank hard. Excellent quality as you expect from pioneer.

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vanzee

Australia

Overall
Durability
Value
Features
Design
Usability
awsome

October 31, 2011

This amp is great im using in my wrx with 2 10" subs nice bass sound easy to use and install highly recommended.

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Patrick

keansburg, NJ

Overall
Durability
Value
Features
Design
Usability
great amp

October 14, 2011

i bought the Pioneer GM-D8500M amp with Pioneer TS-W309D4 sub dam do they work great together. Sub hits hard and never over heats. I never had any problems with the products and i would recommend them.

0 of 0 found this helpful

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MauiBlueBandit

McHenry, Il

Overall
Durability
Value
Features
Design
Usability
Pioneer GM-D8500M & TS-W308D4

September 20, 2011

This amp, 2 pioneer 12s wired @ 1 OHM in a sealed box (overpowers them) . knocked my rearview mirror off and unbolted my hatch motor right off the car. So loud people complain their ears hurt from the sound pressure. No light dimming, over heating or anything. Next im replacing my stock speakers with pioneer A- Series and a GM-D9500F. PIONEER IS BEST. make sure you do not loose the remote cause without it the output is WEAK

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?

los angeles, ca

Overall
Durability
Value
Features
Design
Usability
Reliable quality!

September 7, 2011

There is a reason why all Lexus cars have this amp in their cars. Any radio attached to this amp will sound even better.

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aaron8301

Port Orchard, WA

Overall
Durability
Value
Features
Design
Usability
Love. Pioneer. Amps.

August 12, 2011

This pushes my two Infinity Reference 12" subs like they were meant to be - hard and clean! The remote knob is much easier than constantly going into my head unit's menu to adjust the bass as well. I don't know how I ever lived without it.

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boss

valdosta, GA

Overall
Durability
Value
Features
Design
Usability
Great amp

August 9, 2011

Its a great amp but i didnt like it as much cause i wun push my 4 12's and they was only 300 rms and it sounded like garbarge so i just plugged it into my two 12's and they bang the seal around my trunk. I got a 2 door monte carlo.

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RICHARD

UKIAH, CA

Overall
Durability
Value
Features
Design
Usability
Great Power

August 8, 2011

This amp pumps the perfect amount of power to my RE sex sub. Best price for this amount of power.

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Frank

Dallas, TX

Overall
Durability
Value
Features
Design
Usability
Amazing

July 20, 2011

Great amp! Fits perfectly behind the rear seat in my truck! I have it powering a 10inch Alpine Type-S 1043D and it is a much happier sub with this amp. The bass controll knob is very nice, it doesn't give a "cheep" vibe. I would buy this amp again. I like that it's 2 Ohm stable that gives me room to upgrade the sub without having to upgrade the amp. I have had my System playing at full power for a 2.5 hour drive and the amps never quit once...

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Accessory Tools and Products

Accessories added

NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

The reviews speak for themselves, this is awesome wire with everything you need!

Your Price $69.99

Stinger SK4641 4 Gauge Wiring Kit

Get a high quality amp kit from Stinger to get the most from your new amp!

Your Price $64.99

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

Your Price $59.99

Kicker Big 3 Package 1/0 Gauge Big 3 Upgrade Kit

Get all you need including wire cutters to upgrade your power and ground wire.

Your Price $149.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $39.99

StreetWires FB4

4 AWG / 4 Gauge Firewall Bushing

Your Price $6.95

NVX XDBU4 - Top of the Line!

Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs

Your Price $17.99

Professional Installation for your Car Power Amplifier

Covers labor charges through our professional installer network.

Your Price $89.99

NVX XIX25 X-Series RCA Interconnect Cable

16.4 ft. of 4-Channel X-Series RCA Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $18.99

NVX XWS1225 12 AWG Speaker Wire

25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $39.99

NVX XWS1625 16 AWG Speaker Wire

25 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $13.99

Belva BBSW127 12 AWG Speaker Wire

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $14.99

Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $12.99

SMD DD-1 Distortion Detector

Set the gain of an audio amplifier quickly and accurately

Your Price $149.99

AutoSound 2000 CD-102

High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.

Your Price $11.99

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Product Summary

Manufacturer

Model Number

GM-D8500M

UPC

012562969916

Weight

8.50lbs

Internal SKU

gmd8500m

Internal Product ID

22154

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Pioneer GM-D8500M