---
product_id: 34390355
title: "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"
brand: "pioneer"
price: "$201.70"
currency: USD
in_stock: true
reviews_count: 13
category: "Pioneer"
url: https://www.desertcart.us/products/34390355-pioneer-gm-a3702-2-channel-car-amplifier-500w-max-class
store_origin: US
region: United States of America
---

# 500W max power output Class AB efficiency, low heat Selectable low-pass filter 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

**Brand:** pioneer
**Price:** $201.70
**Availability:** ✅ In Stock

## Summary

> 🎵 Drive the Sound Revolution — Don’t Just Listen, Command Your Car’s Audio!

## Quick Answers

- **What is this?** 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 by pioneer
- **How much does it cost?** $201.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/34390355-pioneer-gm-a3702-2-channel-car-amplifier-500w-max-class)

## 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 with factory radios.
- • **Versatile Bridging Mode:** Switch to single-channel mode to power a subwoofer with 190 watts RMS for deep, impactful lows.
- • **Tailor Your Bass Like a Pro:** Precision low-pass filter with 80 Hz cutoff and 12 dB/octave slope for custom bass control.
- • **Power that Commands Attention:** Unleash up to 500 watts max power for a truly immersive car audio experience.
- • **Efficient Performance, Cooler Ride:** Class AB design balances power and heat management for reliable, distortion-free sound.

## Overview

The Pioneer GM-A3702 is a compact yet powerful 2-channel Class A/B car amplifier delivering up to 500 watts max power. It features a selectable low-pass filter for precise bass customization, efficient heat management, and a bridgeable design that powers subwoofers with 190 watts RMS. With automatic signal sensing and speaker-level inputs, it integrates seamlessly with factory radios, elevating your in-car audio to professional-grade clarity and impact.

## 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 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!
Review: Awesome Amp - 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.

## 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 | #9,076 in Electronics ( See Top 100 in Electronics ) #8 in Car Multichannel Amplifiers |
| Brand | PIONEER |
| Color | Black/red |
| Connectivity technologies | RCA |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,503) |
| Date First Available | August 16, 2016 |
| Department | Pioneer |
| Global Trade Identification Number | 00884938340168 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.1 pounds |
| Item dimensions L x W x H | 7.13 x 9.58 x 2.38 inches |
| Item model number | GM-A3702 |
| Manufacturer | Pioneer Corporation |
| Material | aluminum alloy |
| Maximum Supply Voltage | 12 Volts (DC) |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Other display features | CE |
| Output Power | 500 Watts |
| Package Type Name | Retail Box |
| Product Dimensions | 7.13 x 9.58 x 2.38 inches |
| 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 st… |
| Specification Met | Certified Frustration-free |
| UPC | 884938340168 |
| Voltage | 12 Volts (DC) |
| Whats in the box | 2-Channel amplifier |

## 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

![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 - Image 1](https://m.media-amazon.com/images/I/612Zi83F+nL.jpg)

## 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 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!

### ⭐⭐⭐⭐⭐ Awesome Amp
*by E***N on January 11, 2026*

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.

### ⭐⭐⭐⭐⭐ Fantastic Amplifier!!
*by D***D on October 20, 2025*

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.

## 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

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-31*