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Pioneer GM-A3702

2-channel car amplifier — 60 watts RMS x 2

Item # 130GMA3702

Why put an amplifier in your car? Pioneer's GM-A3702 2-channel amplifier will greatly improve the sound quality in...

Read more from Crutchfield writer, Buck P.

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$79.99

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About the Pioneer GM-A3702

Plays loud and clear

Why put an amplifier in your car? Pioneer's GM-A3702 2-channel amplifier will greatly improve the sound quality in your vehicle, so you'll find yourself looking forward to your time on the road. This punchy little Pioneer will power a pair of speakers with 60 watts RMS each, which is a gigantic jump over the power supplied by your car radio alone. You'll hear more of the little details in your music, especially when you turn your system up to overcome road noise.

Plays loud and clear

Why put an amplifier in your car? Pioneer's GM-A3702 2-channel amplifier will greatly improve the sound quality in your vehicle, so you'll find yourself looking forward to your time on the road. This punchy little Pioneer will power a pair of speakers with 60 watts RMS each, which is a gigantic jump over the power supplied by your car radio alone. You'll hear more of the little details in your music, especially when you turn your system up to overcome road noise.

Practical features

You can also put this versatile amp into single-channel mode, switch on the low-pass filter for clarity, and run a subwoofer with up to 190 watts RMS, perfect for a modest system. Speaker-level inputs allow you to add the GM-A3702 to a factory radio that doesn't have preamp outputs. If your vehicle needs a sonic upgrade, this amp's small footprint and reasonable price make it a great choice.

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Product highlights:

  • 2-channel car amplifier
  • 60 watts RMS x 2 at 4 ohms (95 watts RMS x 2 at 2 ohms)
  • 190 watts RMS x 1 in bridged mode (4-ohm stable in bridged mode)
  • CEA-2006 compliant
  • Class AB amp technology
  • selectable low-pass filter (80 Hz, 12 dB per octave)
  • preamp and speaker-level inputs
  • fuse rating: 25A x 1
  • 10-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 9-3/4"W x 2-3/8"H x 7-3/16"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # GM-A3702
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What's in the box:

  • 2-Channel amplifier
  • 25A ATO fuse (installed)
  • Speaker input harness with four 4" wires
  • 4 Self-tapping screws (3/4" length)
  • Owner's Manual (Eng/Fren)
  • Owner's Manual (Span)
  • Warranty sheet

Customer reviews

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Pioneer GM-A3702 Reviews

Average Customer Review(s):

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Cons:

Crutchfield response

Product Research

Features

CEA-2006 Compliant: CEA-2006 is a system of testing and measurement methods for mobile audio amplifiers. This voluntary standard advocates a uniform method for measuring an amplifier's RMS power output and signal-to-noise ratio. The criteria for measuring power uses a DC input voltage of 14.4 volts and the RMS power output is measured into a 4Ω load, with 1% or less Total Harmonic Distortion plus noise (THD+N), and over a frequency range of 20 Hz to 20 kHz (for full range amplifiers). Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4Ω. CEA-2006 standards allow consumers to compare amplifiers on an equal basis. Using CEA-2006 criteria, the Pioneer GM-A3702 is rated at 60 watts RMS x 2 channels, with a 75 dBA signal to noise ratio.

Specifications: The manual also lists these non CEA-2006 compliant specifications:

  • Power:
    • 2Ω: 95 watts x 2 channels (14.4 volts, 1 kHz, no more than 1% THD+N)
    • Bridged: 190 watts x 1 channel (into 4Ω, 14.4 volts, 1 kHz, no more than 1% THD+N)
  • Signal to Noise Ratio: 95 dB (at rated power)

Gain Control: To accommodate the varying range of signal levels coming from today's factory and aftermarket radios, the input gain is adjustable (0.3V-6.5V line level, 3V-26V speaker level).

LPF: A two position switch turns the low pass filter (LPF) on/off. The crossover point is fixed at 80 Hz and the slope is 12dB/octave.

Power Connections: The power and ground connections are 0.54" wide screw terminals, the remote turn-on screw terminal is 0.325" wide. A Phillips-head or flat blade screw driver (not included) is required to tighten/loosen the terminals. With a total fuse rating of 25 amps, 10 AWG power and ground wire is recommended. A 25A fuse should be placed on the power wire within 18" of the battery. Spade connectors are recommended for the power, ground, and remote wires.

Speaker Connections: The speaker screw terminals are 0.325" wide. A Phillips-head or flat blade screw driver (not included) is required to tighten/loosen the terminals. Spade connectors are recommended for the speaker wires.

RCA Input: The amplifier features one pair of stereo RCA line level inputs (left/right).

Speaker Input: The included speaker level input harness allows you to connect your OEM radio (or aftermarket radio that does not have the typical RCA-type outputs) without having to buy an adapter.

Auto Power On: When using the speaker level input, a circuit senses the input signal and turns the amp on automatically. This feature makes it easier to add an amplifier to a factory radio or to a receiver with no preamp outputs.

Fuse: The amp is protected by one 25-amp ATO blade fuse.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
Affordable option with 190W RMS bridged to run a sub enclosure. Good specs and compact [ Cristiano  Feb 27, 2019 ]
A
Recommended by the great staff at Crutchfield [ Travis  Feb 04, 2019 ]
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cheapest way to get my sub powered [ RUSTY  Jan 12, 2019 ]
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features, size, good value [ ron  Sep 25, 2018 ]
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Used to power factory Bose 6" sub in my Silverado. [ Adam  Sep 24, 2018 ]
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liked the small compact size [ James  Aug 20, 2018 ]
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Pioneer always been a trusted brand [ BRANDON  Aug 09, 2018 ]
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Its cheap and it's the right amount of power to run my new JBL GT7-96 GT7 Series 6"x9" 3-way car speakers. [ Erick  Aug 07, 2018 ]
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small but effective! lots of features and great price point :) [ KEVIN J  Jul 23, 2018 ]
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Good price, brand and fell into the RMS I needed. [ Jeff  Jul 13, 2018 ]
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Crutchfield has the best price on many items. Do the research you will see! [ Kurt  Jul 12, 2018 ]
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Nice price [ Miguel  Jul 07, 2018 ]
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Good value and always had good luck with Sony amps, my need in this case was minor so think this was the best fit [ Ryan  Jun 26, 2018 ]
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Price [ Shawn C.  Jun 04, 2018 ]
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I like Pioneer products. [ Kevin  Jun 02, 2018 ]
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Awsome price for value [ Krista  Apr 23, 2018 ]
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it was recommended by crutchfield based off of the subwoofer that i wanted.. trust in crutchfield, they won't let you down [ C  Apr 17, 2018 ]
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To run 6.5" component set. [ Braden  Mar 22, 2018 ]
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Wanted an amp to push my Polk Audio DB 522 speakers... [ Brad  Mar 17, 2018 ]
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Adviser recommendation [ Barry  Feb 20, 2018 ]
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Price and works with the subs I have. [ G  Feb 09, 2018 ]
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For compatibility with my head unit and I've been very happy with previous Pioneer purchases. [ David  Feb 06, 2018 ]
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Because my husband picked it out [ Mary  Dec 22, 2017 ]
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I liked the price and the rms watts [ FRANK  Dec 18, 2017 ]
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to run the sub in the trunk [ E  Nov 28, 2017 ]
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power tube [ Stephen  Nov 24, 2017 ]
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price [ mike  Nov 05, 2017 ]
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Right output for my application. I've used Pioneer amps before, and have no complaints! [ David  Nov 04, 2017 ]
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Value [ Charles  Oct 18, 2017 ]
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Purchased to put into a cooler radio. [ Christopher  Sep 17, 2017 ]
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most power for the money [ william  Aug 13, 2017 ]
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Very satisfied with original purchase. Ordered a 2nd unit for additional speakers after an older amp stopped working. [ D JOE  Jul 31, 2017 ]
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It's price [ Marcel  Jul 15, 2017 ]
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It's all I needed. Price was right. [ John  Jun 22, 2017 ]
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Great amp for the price. [ Ralph  Jun 11, 2017 ]
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Because I'm going to amplify my aftermarket speakers [ steven  Jun 10, 2017 ]
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Didn't know a whole lot about amps, but the guy who I talked to on here recommended it. [ Mason  Jun 09, 2017 ]
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Need a boost for my Blaupunkt Toronto deck to drive the 6x9 rear deck Helix speakers when riding with the top down but I have limited trunk space - this should do the trick at great price (Tech recommendation). [ FREDERIC  May 23, 2017 ]
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Recommended by Bryce, suitable for Pioneer Sub in this car. Thanks for the Instruction Manual gift! Very much appreciated. Dana [ Dana  May 17, 2017 ]
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nice amp!!!! [ CESAR  May 15, 2017 ]
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i build custom cooler radios to sell. this is my go to amp because of price and size [ tracey  May 10, 2017 ]
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Long-time Pioneer fan. Have CD, speakers, and amps: all Pioneer. Had a KEX-20 cassette deck back in the late ' 70's. It was the best! [ R  May 05, 2017 ]
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features and cost [ MYRON  Apr 24, 2017 ]
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On line match [ KIRK B  Apr 07, 2017 ]
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I've always liked Pioneer as a brand and it was just the power my door speakers need. Or could be used as a subwoofer amp in the future if I need. [ Adam  Mar 31, 2017 ]
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Tech recommended [ Amy  Mar 28, 2017 ]
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i Think is good for the price listed over Here!!! :) [ Roberto  Mar 14, 2017 ]
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I have 1991 Mercedes-Benz/AMG 3.6 coupe with a Blaupunkt Toronto RDM126 head unit. I recentlypurchased a set of Pioneer G-series to replace the OEM dash and rear speakers. The car has OEM "Active Base" speakers in the doors and I needed a 2-ch amplifier to drive them. The replacement Pioneer speakers sound pretty good so I decided to give the company a shot for my amplifier purchase. [ Chad  Mar 12, 2017 ]
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Brand of course! I also have speakers and radio as well. [ Paul  Mar 01, 2017 ]
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Crutchfiefld customer service and price [ Glenn  Jan 31, 2017 ]
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It was what I was wanting for the price [ Thomas  Jan 04, 2017 ]
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To drive tweeters [ David  Dec 30, 2016 ]
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It should fit in the space available, speaker level inputs, power output is compatible with my speakers. [ ROBERT M  Dec 21, 2016 ]
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Crutchfield always have good prices and also provides good information to make sure you get the best set up for what you are looking for. There were indeed other competitors but Crutchfield had the best price with free shipping, [ FARRIS  Dec 16, 2016 ]
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Price [ ROBERT  Nov 27, 2016 ]
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Compact size, didn't want/need megawatts. Great value! [ David M.  Nov 19, 2016 ]
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8 questions already asked

Q
Would this amp work well with 2 Jensen DUBw10?
[ Trevor  Sep 13, 2018 ]
1 answer
A
Thanks for your question. For information on selecting the best amp I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system.
[ Krissy  Sep 18, 2018 ]  Staff
Q
Will this provide sufficient power for a set of Infinity Pappas component set 60.11?
[ Eminemgsr  Mar 31, 2018 ]
3 answers
A
Definitely, Infinity's are very efficient (93 dB sensitivity) and the Pioneer amp is a good affordable power solution.
[ Aaron  Apr 09, 2018 ]
A
I returned this amp. I found the power to be raw and unrefined. It is affordable but I think there are better products out there for the money.
[ NATHANIEL  Apr 08, 2018 ]
A
Yes. This amp is 60 watts RMS at 4 ohm and 95 watts at 2 ohms. The Kappas are 90 watts RMS at 2 ohms I'm pretty sure.
[ Caleb  Apr 07, 2018 ]
Q
Will this 2 channel amp power 4 aftermarket door speakers (Pioneer Model: TS-G1645R) rated at 4 ohms?
[ Nickt  Sep 09, 2017 ]
1 answer
A
Yes it should be able to at 47.5 watts per speaker, but you won't be able to use fader controls like you can with a 4 channel amp and there will be more distortion pushing what it will see as a 2 ohm setup if you wire in parallel.
[ Jeremy  Sep 09, 2017 ]
Q
Should i add a high pass filter to this amp so bass would only go to my subs running on a different amp?
[ Isaac  Jun 29, 2017 ]
1 answer
A
Thanks for the question! In order to get more personalized recommendations regarding your car audio setup, you would be better off contacting an Advisor directly by phone (888.955.6000) or online chat. They can help answer your specific questions in greater detail.
[ Larry  Jul 07, 2017 ]  Staff
Q
Pioneer GM A3702 vs SONY XM N502 which one will be better for running a sub?
[ gaurav  Jun 02, 2017 ]
1 answer
A
Thanks for your question. For information on selecting the best amp for your sub I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system.
[ Kenny  Jun 02, 2017 ]  Staff
Q
Would this amp work for a component speaker system or is it desined for subs only?
[ Boneskull  Apr 02, 2017 ]
2 answers
A
This will work on component or Sub. It is actually probably meant more for components. If connecting to a sub you will want to bridge this amp to get the most out of it. I have this connected to a Memphis 8" sub bridged, cranked up and still wish it had just a little more juice.
[ Ivan  Apr 04, 2017 ]
A
Yes. It can be used to power 2 component speakers. Make sure you check the power rating of the speakers you wish to use to be sure they are compatible with the power rating of the amp.
[ Curt  Apr 04, 2017 ]
Q
In bridged mode it says 190 watts x1, 4 ohm stable. I am curious if that means it pushes 190 to a single 4 ohm speaker (sub)? Also, if you are wanting to use the auto power on speaker level feature, do you need rca adapters or anything like that to plug in to it?
[ Rocky  Mar 25, 2017 ]
1 answer
A
You can bridged the 2-channels on this amp down to a single channel in order to drive a single speaker or subwoofer. And the included speaker-level input harness allows you to connect your OEM radio (or aftermarket radio that does not have the typical RCA-type outputs) without having to buy an adapter. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. Hope that helps!
[ Larry  Apr 05, 2017 ]  Staff
Q
Is this Amplifier compatible with a Rockford Fostgate Punch P3S-1X10?
[ Jake  Jan 09, 2017 ]
1 answer
A
Thanks for your question. For information on selecting the best amp for your sub I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system.
[ Kenny  Jan 09, 2017 ]  Staff
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