---
product_id: 271535847
title: "GM-A3702 2-Channel Bridgeable Amplifier"
brand: "pioneer"
price: "R$1202"
currency: BRL
in_stock: false
reviews_count: 5
url: https://www.desertcart.com.br/products/271535847-gm-a3702-2-channel-bridgeable-amplifier
store_origin: BR
region: Brazil
---

# 500W max power output Automatic signal detection & on High-voltage input level control GM-A3702 2-Channel Bridgeable Amplifier

**Brand:** pioneer
**Price:** R$1202
**Availability:** ❌ Out of Stock

## Summary

> 🎵 Amplify your drive with clean, powerful sound that keeps pace with you!

## Quick Answers

- **What is this?** GM-A3702 2-Channel Bridgeable Amplifier by pioneer
- **How much does it cost?** R$1202 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/271535847-gm-a3702-2-channel-bridgeable-amplifier)

## 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

- • **Compact & Cool:** Sleek aluminum alloy design stays cool under pressure for long-lasting reliability
- • **Seamless Signal Sync:** Auto-detects input mode for instant power-up with your receiver
- • **Powerhouse Performance:** Delivers a robust 500W output to energize your audio setup
- • **Pure Sound, Zero Whine:** Engineered to eliminate alternator noise even at high gain
- • **Smart Input Flexibility:** Supports both RCA and speaker-level inputs without manual switching

## Overview

The Pioneer GM-A3702 is a 2-channel bridgeable amplifier delivering up to 500 watts of clean power. Featuring automatic signal detection, it seamlessly syncs with OEM receivers, whether using RCA or speaker-level inputs. Its high-voltage input control and balanced isolator circuit ensure noise-free, high-fidelity audio. Compact and durable, this aluminum alloy amplifier is designed for easy installation and reliable performance, making it a top choice for vehicle audio enthusiasts seeking premium sound without the hassle.

## Description

2-channel bridge amplifier Pioneer amplifiers automatically select the appropriate input signal mode, cinch or speaker mode. When the receiver is turned on, the amplifier will automatically turn on. When connected to an OEM receiver or receiver without RCA output and using the speaker level output, the amplifier automatically senses the input mode and turns on in sync with the receiver. When connected to an OEM receiver or receiver without RCA output via a speaker cable, the amplifier will be switched on at the same time as the receiver. Pioneer amplifiers automatically detect input signal and select RCA level or speaker level.

Review: Previously I had a Crunch amp and it gives the alternator whine when I press on the accelerator. Tried many ways to fix it with capacitors and better grounding but it can only be fixed by turning down gain all the way. After changing to this, it sounds really clean even with the gain being turned up by default, despite having reused all the old power and grounding cables.
Review: Très facile d'installation. J'ai un 10" 400 watts et l'amplificateur le prends très bien. Ne deviens pas trop chaude pour l'instant. Reste à voir sa longévité à long terme car je ne l'ai que depuis 24 hres. Arrivé en même pas 24 hre.

## Features

- Maximum Power 500W
- Automatic Signal Detection & On
- Hi-Volt Input Level Control
- Balanced Isolator Input Circuit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01KKHT4YU |
| Best Sellers Rank | #153,322 in Electronics ( See Top 100 in Electronics ) #498 in Home Audio Amplifiers |
| Brand Name | PIONEER |
| Country Of Origin | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,106) |
| Global Trade Identification Number | 00884938340168 |
| Included Components | Please see the Pioneer Electronics Website for additional product details. |
| Item Dimensions | 18.1 x 24.3 x 6 centimeters |
| Item Weight | 1.41 kg |
| Manufacturer | Pioneer Electronics USA Inc |
| Material Type | aluminum alloy |
| Maximum Output Power | 500 watts |
| Maximum Supply Voltage | 12 Volts (DC) |
| Model | GM-A3702 |
| Mounting Type | Through-Hole Mount |
| Number of Channels | 2 |
| Output Power | 500 Watts |
| Package Type Name | Box |
| Part Number | GM-A3702 |
| Specification Met | CE |
| UPC | 884938340168 |
| Unit Count | 1 Count |
| Voltage | 12 Volts (DC) |

## Product Details

- **Item dimensions L x W x H:** 18.1 x 24.3 x 6 centimeters
- **Manufacturer:** Pioneer Electronics USA Inc
- **Maximum supply voltage:** 12 Volts (DC)
- **Mounting type:** Through-Hole Mount
- **Voltage:** 12 Volts (DC)

## Images

![GM-A3702 2-Channel Bridgeable Amplifier - 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

### ⭐⭐⭐⭐⭐ Review
*by N***K on 8 July 2024*

Previously I had a Crunch amp and it gives the alternator whine when I press on the accelerator. Tried many ways to fix it with capacitors and better grounding but it can only be fixed by turning down gain all the way. After changing to this, it sounds really clean even with the gain being turned up by default, despite having reused all the old power and grounding cables.

### ⭐⭐⭐⭐⭐ Review
*by J***G on 20 July 2025*

Très facile d'installation. J'ai un 10" 400 watts et l'amplificateur le prends très bien. Ne deviens pas trop chaude pour l'instant. Reste à voir sa longévité à long terme car je ne l'ai que depuis 24 hres. Arrivé en même pas 24 hre.

### ⭐⭐⭐⭐⭐ Review
*by B***H on 26 December 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!

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.com.br/products/271535847-gm-a3702-2-channel-bridgeable-amplifier](https://www.desertcart.com.br/products/271535847-gm-a3702-2-channel-bridgeable-amplifier)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-05-11*