--- product_id: 34390355 title: "GM-A3702 2-Channel Car Amplifier – 500W Max, Class AB, Bridgeable Design, Automatic Signal Sensing and Turn-on, Built-in high-/Low-Pass Filter" brand: "pioneer" price: "฿9642" currency: THB in_stock: true reviews_count: 13 category: "Pioneer" url: https://www.desertcart.co.th/products/34390355-gm-a3702-2-channel-car-amplifier-500w-max-class-ab store_origin: TH region: Thailand --- # 500W max power output Class AB efficiency Selectable low-pass filter GM-A3702 2-Channel Car Amplifier – 500W Max, Class AB, Bridgeable Design, Automatic Signal Sensing and Turn-on, Built-in high-/Low-Pass Filter **Brand:** pioneer **Price:** ฿9642 **Availability:** ✅ In Stock ## Summary > 🎵 Drive the Sound Revolution — Don’t Just Listen, Command Your Car’s Audio! ## Quick Answers - **What is this?** GM-A3702 2-Channel Car Amplifier – 500W Max, Class AB, Bridgeable Design, Automatic Signal Sensing and Turn-on, Built-in high-/Low-Pass Filter by pioneer - **How much does it cost?** ฿9642 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/34390355-gm-a3702-2-channel-car-amplifier-500w-max-class-ab) ## Best For - pioneer enthusiasts ## Why This Product - Trusted pioneer brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Integration:** Speaker-level inputs and automatic signal sensing make installation effortless, even with factory radios. - • **Tailored Bass Precision:** Customize your audio with a selectable low-pass filter featuring an 80 Hz cutoff and smooth 12 dB/oct slope. - • **Versatile Bridging Mode:** Switch to bridged single-channel mode to power subwoofers with a robust 190 watts RMS output. - • **Power That Commands Attention:** Unleash up to 500 watts max power for immersive, dynamic sound that transforms your drive. - • **Efficient Performance, Cooler Ride:** Class AB design balances power and heat management for reliable, long-lasting audio excellence. ## Overview The Pioneer GM-A3702 is a compact yet powerful 2-channel Class AB car amplifier delivering up to 500 watts max power. It features a selectable low-pass filter for precise bass control, a bridgeable design for subwoofer support, and automatic signal sensing for easy integration with factory radios. Engineered for efficiency and minimal distortion, it ensures clear, dynamic sound without overheating, making it a top choice for upgrading your in-car audio experience. ## 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. Review: Great sub woofer amp for my Honda Pilot. - 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. Review: Great amp, with awesome sound and definite value for the money - 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! ## 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01KKHT4YU | | Best Sellers Rank | #7,835 in Electronics ( See Top 100 in Electronics ) #10 in Car Multichannel Amplifiers | | Brand Name | PIONEER | | Customer Reviews | 4.4 4.4 out of 5 stars (1,130) | | Global Trade Identification Number | 00884938340168 | | Included Components | 2-Channel amplifier | | Item Dimensions | 7.13 x 9.58 x 2.38 inches | | Item Type Name | PIONEER | | Item Weight | 3.1 Pounds | | Manufacturer | Pioneer Corporation | | Material Type | aluminum alloy | | Maximum Output Power | 500 watts | | Maximum Supply Voltage | 12 Volts (DC) | | Model | GM-A3702 | | Mounting Type | Surface Mount | | Number of Channels | 2 | | Output Power | 500 Watts | | Package Type Name | Retail Box | | Part Number | GM-A3702 | | Specification Met | Certified Frustration-free | | UPC | 884938340168 | | Unit Count | 1.0 Count | | Voltage | 12 Volts (DC) | | Warranty Description | 1 year | ## Product Details - **Item dimensions L x W x H:** 7.13 x 9.58 x 2.38 inches - **Manufacturer:** Pioneer Corporation - **Maximum Supply Voltage:** 12 Volts (DC) - **Mounting Type:** Surface Mount - **Voltage:** 12 Volts (DC) ## Images ![GM-A3702 2-Channel Car Amplifier – 500W Max, Class AB, Bridgeable Design, Automatic Signal Sensing and Turn-on, Built-in high-/Low-Pass Filter - Image 1](https://m.media-amazon.com/images/I/612Zi83F+nL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: What amp would be best for mtx terminator 2 12** A: I have the pioneer 1000watt that works good with my terminator 12s. **Q: Will this work for two 8in pioneer shallow mount subs?** A: Works fine for my two 10 inch Rockford Fosgate subs. **Q: using an ipod nano as the input to this amp, will it turn on automatically and will it function properly?** A: Yes you can. But the output voltage from the nano is a maximum about 1.5 volts. So you would have to run a short RCA to 3.5 adapter for signal loss. Also you will need a switch to power amplifier on and off. I have done it. Also you will have no ability to equalize the sound. **Q: Will this work for (2) 10 inch rocford fosgate subs** A: That's actually what I'm using it on. I have two 10 inch P1s and it works well. Both my subs are on a single input and if i try to bridge them, it cuts out so i just use a single channel and it sounds good. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great sub woofer amp for my Honda Pilot. *by C***E on March 26, 2026* 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. ### ⭐⭐⭐⭐⭐ Great amp, with awesome sound and definite value for the money *by B***H on December 26, 2025* 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! ### ⭐⭐⭐⭐⭐ 98% Smooth and compact with a kick. *by S***E on June 14, 2022* Like many other amps it has a super small tendency to have a back ground noise. But I’m talking small, engine running and you need to listen for it and intermittently happens. Truly no amazing for the price and overwhelming quality of sound and power it helps project through my speakers. Highly recommended and also works great if you only want to run a subwoofer as it has a bypass switch. Manage to also use OeM amp wiring with no issues or clipping. ## Frequently Bought Together - Pioneer GM-A3702 2-Channel Bridgeable Car Amplifier – 500W Max Power, Class AB - BOSS Audio Systems KIT2 8 Gauge Complete Car Amplifier Installation Wiring Kit with Power Cables, Ground Cables, Turn-On Wire, Speaker Wire, Terminals - Scosche LOC2SL Line Output Converter with Remote Control Knob - 2CH High/Low RCA Converter Car Audio - Ideal for Subwoofer Amp - Line Level Converter for Car Stereo - Easy Installation - Quality Sound --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/34390355-gm-a3702-2-channel-car-amplifier-500w-max-class-ab](https://www.desertcart.co.th/products/34390355-gm-a3702-2-channel-car-amplifier-500w-max-class-ab) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-28*