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PIONEER

Pioneer GM-A3702 2-Channel Car Amplifier – 500W Max, Class AB, Bridgeable Design, Automatic Signal Sensing and Turn-on, Built-in high-/Low-Pass Filter

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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, May 4
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Style: 2-Channel - 500W


Features

  • 2-Channel Class A/B Amp Elevate your car audio with the Pioneer GM-A3702 2-channel amp, delivering louder and clearer sound. Unleash increased power, transforming your listening experience beyond the limitations of a traditional radio.
  • Maximum Power Output Power up your music. The GM-A3702 cranks out a strong 500 watts of max power output creating dynamic and impactful sound reproduction, with 60 watts RMS x 2 at 2 ohms (190 watts RMS x 1 in bridged mode).
  • Efficiency The Pioneer GM-A3702 boasts a Class AB design, balancing efficiency and performance, ensuring optimal power usage for a reliable audio experience without excessive heat generation.
  • Low Distortion With minimized crossover distortion, this amplifier guarantees a clean and distortion-free audio output, preserving the integrity of the source signal for high-quality sound reproduction.
  • Selectable Low-Pass Filter Featuring a selectable low-pass filter with precision control, the GM-A3702 allows users to tailor their audio experience with a cutoff frequency of 80 Hz and a gradual 12 dB per octave slope for optimal customization of bass frequencies.

Description

Elevate your in car audio experience with the Pioneer GM-A3702 2-channel Class A/B amplifier. With a maximum power output of 500 watts, it delivers dynamic and impactful sound that will enhance your ride. This Pioneer amplifier powers a pair of speakers with 60 watts RMS each, delivering a significant jump in power over your car radio alone. Boasting a Class A/B design, this car amplifier balances efficiency and performance, ensuring optimal power usage without excessive heat generation. Experience crystal-clear audio with minimized crossover distortion, preserving the integrity of the source signal for high-quality sound reproduction. Tailor your audio experience with the selectable low-pass filter, offering precision control with an 80 Hz cutoff frequency and a gradual 12 dB per octave slope for optimal customization of bass frequencies. With the Pioneer GM-A3702 car amp you also have the ability to switch to single-channel mode, activate the low-pass filter for clarity, and power a subwoofer with up to 190 watts RMS. Speaker-level inputs make it easy to integrate the GM-A3702 with a factory radio that lacks preamp outputs. Transform your car audio experience with this compact yet powerful amplifier today, and immerse yourself in a world of elevated sound quality.

Item dimensions L x W x H: 7.13 x 9.58 x 2.38 inches


Voltage: 12 Volts (DC)


Manufacturer: Pioneer Corporation


Maximum Supply Voltage: 12 Volts (DC)


Mounting Type: Surface Mount


Voltage: 12 Volts (DC)


Maximum Supply Voltage: 12 Volts (DC)


Mounting Type: Surface Mount


Number of Channels: 2


Output Power: 500 Watts


Package Type Name: Retail Box


Item Dimensions: 7.13 x 9.58 x 2.38 inches


Material Type: aluminum alloy


Specification Met: Certified Frustration-free


Manufacturer: Pioneer Corporation


Model: GM-A3702


Brand Name: PIONEER


Global Trade Identification Number: 68


UPC: 884938340168


Item Type Name: PIONEER


Included Components: 2-Channel amplifier


Item Weight: 3.1 Pounds


Unit Count: 1.0 Count


Warranty Description: 1 year


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Great amp, with awesome sound and definite value for the money
Style: 2-Channel - 500W
Sounds really better than expected. Looks great and inconspicuous. I have mine wired at 2ohms. It holds stable with no drain and no overheating. Easy to connect and the auto on/off feature is great. You'll really enjoy this amp. It provides a great sound over stock any day. And if we're being honest, i actually bought 2! ... show more
Reviewed in the United States on December 26, 2025 by Black Tortoise Tech
    • Awesome Amp
Style: 4-Channel - 1000W
Really great amp for the money. Good amount of adjustability, produces good sound and is plenty powerful. The bridging feature and selection between 1, 2, or 3 channels makes it very versatile. Doesn’t get very warm powering (2) 6.5” door speakers and a Kicker 8” woofer.
Reviewed in the United States on January 11, 2026 by Ethan
    • solid
Style: 2-Channel - 500W
solid 2 channel amp.
Reviewed in the United States on March 19, 2026 by Sydney Rogers
    • Powerful, clear-sounding and modestly-priced (12VDC power runs efficiently off Talentcell...)
Style: 2-Channel - 500W
I hooked up my old PolkAudio TS25i (seems most similar to latest-model TSi100, would be a great deal at $150/pair if actually similar) and got outstanding results. After running the same speakers on a mid-grade home component integrated amp by NAD, I think I was hearing a fuller bottom end with the Pioneer 12VDC amp. Although others have noted this amp should prominently market its true continuous power rating at low distortion, not the peak power 500Watts blazoned on its shell, it got louder than desired for a porch dance party, where the absence of walls sucks away sound level, and PLENTY loud to fill my 18x12 living room to party-level loudness, running through the two polk 2-way bookshelf speakers. The presence of that full bass suggests it's got some reserves beyond that. What I'm most happy about is it doesn't gobble up much power. My rig is a prototype for a powerful battery-only portable PA system, using a Yamaha 4-channel mixer (https://smile.amazon.com/gp/product/B00I2J4V5G/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1), Behrenger PowerPlay personal monitor station (https://smile.amazon.com/Behringer-P1-B-BEHRINGER-POWERPLAY/dp/B00GRKXRMK/ref=pd_rhf_ee_s_rp_c_2_0_4/146-7260826-2760957?_encoding=UTF8&pd_rd_i=B00GRKXRMK&pd_rd_r=b81d7dd3-e0e0-40be-a9cb-1208225c60eb&pd_rd_w=5P9ol&pd_rd_wg=oWpZX&pf_rd_p=ea85cb41-868b-4aee-9344-f4ee71f19400&pf_rd_r=ZTY0RMF7TEQ258CX58DH&psc=1&refRID=ZTY0RMF7TEQ258CX58DH) could probably be removed from signal-chain, and possibly some Skars 6x9's (https://smile.amazon.com/gp/product/B019Y7VLUM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1) in compact wedge enclosures (https://smile.amazon.com/gp/product/B074QZ5FSZ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1), all running off two pair of Talentcell 12V battery bricks with 12V, 9V, and USB 5V outputs (https://smile.amazon.com/gp/product/B01337QXMA/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1). I had one parallel-jumpered pair of Talentcell 100 Wh (airport compliant) bricks running the Yamaha mixer and Behrenger personal pre-amp, and one pair of Talentcell 132 Wh bricks running the Pioneer power amp. The signal-level bricks are 3/4 the capacity of the power amp bricks. They drained faster than the power amp bricks, even though a couple mixers should be less than 1/2 the power of a power amp? The whole system played about 1 hour of very-loud music, 6 hours at a level you'd turn it down to talk to a friend, 2 hours at background level and probably another 4 hours with amp and signal processing in 'standby': on but not playing music. I'd guess the rig could do >4hours at very-loud volume, no problem, maybe 6 or 8. ... show more
Reviewed in the United States on October 25, 2020 by Robert Monk
    • Accurate Advertised Specs!
Style: 2-Channel - 1000W
Initial testing was impressive. Unlike most audio advertisements, this one is accurate! It's actually far more sound volume than I'll ever need or use. Knowing that audio specifications are usually blatant lies, I bought the cheapest head unit I could find, with the features I wanted. I ignored the output power ratings. It actually sounds decent but all the credit goes to this amp. Installation will be quick & simple. I'm using the factory speakers in my old Ford F-350 4x4 truck. I plan on buying another for my desk. Driven by my computer and connected to some Klipsch bookshelf speakers. I know, a bit overkill but like I said, everyone else can't be honest with specifications so at least this way I know what I'm buying. ... show more
Reviewed in the United States on November 1, 2025 by Jeff P
    • Fantastic Amplifier!!
Style: 4-Channel - 1000W
I love the power and performance of this amplifier. It fits nicely on the ledge in my trunk and looks very professional. I purchased this Pioneer Amplifier in August 2019 along with an in-dash Pioneer stereo, speakers, and a 10-inch subwoofer. I had it installed professionally at Best Buy, which I highly recommend. My entire system has performed flawlessly for just over five years. My Pioneer 4-channel amp is truly a game changer. ... show more
Reviewed in the United States on October 20, 2025 by David
    • Decent price to run 1-15inch sub, let’s see if it works and hold up till I can upgrade
Style: 2-Channel - 500W
Review Image by Mathew Benson
Review Image by Mathew Benson
Review Image by Mathew Benson
Review Image by Mathew Benson
Haven’t plugged it and set it up with my black diamond 15 inch subwoofer hopefully it’s enough power to get a good steady sound until I can upgrade
Reviewed in the United States on December 17, 2025 by Mathew Benson
    • Did not work
Style: 2-Channel - 500W
Did not work out the box
Reviewed in the United States on February 27, 2026 by Fatboyslim35

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