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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

  • Based on 996 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Jun 26
Order within 12 hours and 47 minutes
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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.

Product Dimensions: 7.13 x 9.58 x 2.38 inches


Item Weight: 3.1 pounds


Item model number: GM-A3702


Is Discontinued By Manufacturer: No


Connectivity technologies: RCA


Special features: car stereo, double din car stereo, pioneer car stereo, car stereo bluetooth, kenwood car stereo, bluetooth car stereo, pioneer double din car stereo, alpine car stereo, android car stereo, touch screen car stereo, single din car stereo, car stereo with backup camera, sony car stereo, indash car stereo touch screen, double din car stereo with navigation, 2 din car stereo, car stereo harness, car stereo wire harness, car stereo wire harness connectors, posi car stereo wire harness connectors


Other display features: Wireless


Color: Black/red


Whats in the box: 2-Channel amplifier


Department: Pioneer


Manufacturer: Pioneer Corporation


Date First Available: August 16, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jun 26

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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Similar Products

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
    • Great quality!
Style: 2-Channel - 500W
This is a very clear awesome amp!
Reviewed in the United States on May 3, 2026 by Carlos M Contreras
    • Great value
Style: 2-Channel - 500W
Easy to install, works great with my pioneer deck and sub.
Reviewed in the United States on April 18, 2026 by Andrew M.
    • 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
    • Perfect for driving a single 8” sub
Style: 2-Channel - 500W
Paired this with an 8” pioneer sub and alpine deck, bridged mono on the sub outs. With gain at 100% and sub level at full the bass hits hard and clean. You can feel the bass with just 1 8” sub.
Reviewed in the United States on May 11, 2026 by como651
    • Quality
Style: 2-Channel - 500W
Works great pounds my subs
Reviewed in the United States on June 2, 2026 by Jake’s Mobile Auto Service LLC
    • Power rating is exaggerated.
Style: 2-Channel - 500W
I have the amp running in bridged mode to a dvc pioneer 10 inch sub wired at 4 ohms. The amp barely has enough power to run the sub. I expected quite a bit more from the amp, so I would say the performance is lacking.
Reviewed in the United States on August 20, 2024 by jeff hunholz
    • Great sub woofer amp for my Honda Pilot.
Style: 2-Channel - 500W
Some scumbag stole my sub woofer power amp out of my Honda Pilot. This was a great replacement and paired perfectly with my new Pioneer car stereo. Good a and fast delivery. Way cheaper than the audio shop wanted to charge me for a smaller lower powered amp. Just fit under the passenger seat with no obstructions. ... show more
Reviewed in the United States on March 26, 2026 by Carole

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