---
product_id: 456950544
title: "Pioneer GM-DX104 4-Channel Car Amplifier – 400W Max, Efficient Class D, Bridgeable Design, Hi-Res Certified, Gold terminals, Clean Output, Low Interference"
brand: "pioneer"
price: "¥48603"
currency: JPY
in_stock: true
reviews_count: 5
category: "Pioneer"
url: https://www.desertcart.jp/products/456950544-pioneer-gm-dx104-4-channel-car-amplifier-400w-max-efficient
store_origin: JP
region: Japan
---

# Efficient Class D tech 400W max power output Bridgeable 4-channel design Pioneer GM-DX104 4-Channel Car Amplifier – 400W Max, Efficient Class D, Bridgeable Design, Hi-Res Certified, Gold terminals, Clean Output, Low Interference

**Brand:** pioneer
**Price:** ¥48603
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your ride with sound that commands attention!

## Quick Answers

- **What is this?** Pioneer GM-DX104 4-Channel Car Amplifier – 400W Max, Efficient Class D, Bridgeable Design, Hi-Res Certified, Gold terminals, Clean Output, Low Interference by pioneer
- **How much does it cost?** ¥48603 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/456950544-pioneer-gm-dx104-4-channel-car-amplifier-400w-max-efficient)

## 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 Yet Mighty:** Mini chassis fits tight spaces without sacrificing performance—perfect for sleek, modern car interiors.
- • **Flexible Installation:** Bridgeable channels adapt seamlessly to your custom speaker setup for ultimate sound control.
- • **Power Meets Precision:** Unleash up to 400W of crystal-clear sound that transforms your drive into a concert hall.
- • **Cool & Clean Performance:** Class D efficiency means less heat, less interference, and more pure audio bliss.
- • **Hi-Res Certified Clarity:** Experience every note in stunning detail with high-resolution audio compatibility.

## Overview

The Pioneer GM-DX104 is a compact, bridgeable 4-channel car amplifier delivering up to 400W max power with efficient Class D technology. Hi-Res certified for superior audio clarity, it offers flexible installation options and clean, low-interference output, making it an ideal upgrade for both factory and aftermarket car audio systems.

## Description

Pioneer GM-DX104 4-Channel Bridgeable Car Amplifier is a compact Class D amplifier engineered to deliver efficient high-performance amplification for vehicle audio systems. Supporting Hi-Res Audio playback and bridgeable channel configuration, it provides installation flexibility while enhancing sound clarity and output. Its compact design allows convenient installation in vehicles with limited available mounting space.

Review: Goo - Good
Review: More power and sound clarity! - I installed the Pioneer GM-DX104 in my 2024 Subaru Forester Sport, and the improvement was far beyond my expectations. The sound quality improved dramatically. Vocals became much clearer, the soundstage opened up, and the door speakers now have much more power and detail. Even at higher volumes, the sound stays clean without distortion. It honestly feels like upgrading to a completely different audio system. Before installing the amplifier, the subwoofer tended to overpower the system, making the midrange and highs sound muddy and less defined. After adding the GM-DX104, the mids and highs became much clearer and more balanced. Because of that, I actually needed to increase the subwoofer level slightly to restore the bass balance I preferred. The wiring was also very straightforward. The semi-transparent yellow wire was used for the power cable, and the semi-transparent brown wire was the ground cable, making the installation easy to understand and reducing the chance of wiring mistakes. I originally considered mounting the amplifier behind the head unit inside the center console because of its compact size. However, after considering heat dissipation, I decided to install it under the front passenger seat where there is much better airflow. It fits perfectly there while allowing plenty of ventilation. This has been the most cost-effective upgrade I've made to my car audio system, and I highly recommend it to anyone looking for a compact 4-channel amplifier.

## Features

- Hi-Res audio compatible 4-channel amplifier delivers powerful and detailed sound reproduction
- Bridgeable design offers flexible installation options for different speaker system configurations
- Compact mini amplifier chassis simplifies installation where mounting space is limited
- Class D amplifier technology provides efficient power delivery with reduced heat generation
- Designed to enhance factory or aftermarket car audio systems with improved amplification performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DSZBBCB7 |
| Best Sellers Rank | #21,705 in Electronics ( See Top 100 in Electronics ) #12 in Car Audio Amplifiers |
| Brand | PIONEER |
| Built-In Media | 1 x Pioneer GM-DX104 4-Channel Bridgeable Car Amplifier |
| Customer Reviews | 4.4 out of 5 stars 46 Reviews |
| Item Type Name | Car Amplifier |
| Item Weight | 590 g |
| Manufacturer | Pioneer Corporation |
| Mfr Part Number | GM-DX104 |
| Model Number | GM-DX104 |
| Number of Items | 1 |
| Warranty Description | Pioneer Standard Warranty |

## Product Details

- **Item dimensions L x W x H:** 38 x 64 x 181 millimeters
- **Manufacturer:** Pioneer
- **Maximum supply voltage:** 12 Volts
- **Minimum supply voltage:** 12 Volts
- **Voltage:** 45 Volts

## Images

![Pioneer GM-DX104 4-Channel Car Amplifier – 400W Max, Efficient Class D, Bridgeable Design, Hi-Res Certified, Gold terminals, Clean Output, Low Interference - Image 1](https://m.media-amazon.com/images/I/51uLVPO3UKL.jpg)
![Pioneer GM-DX104 4-Channel Car Amplifier – 400W Max, Efficient Class D, Bridgeable Design, Hi-Res Certified, Gold terminals, Clean Output, Low Interference - Image 2](https://m.media-amazon.com/images/I/71Hx+FVe1nL.jpg)
![Pioneer GM-DX104 4-Channel Car Amplifier – 400W Max, Efficient Class D, Bridgeable Design, Hi-Res Certified, Gold terminals, Clean Output, Low Interference - Image 3](https://m.media-amazon.com/images/I/71WR3eOaMaL.jpg)
![Pioneer GM-DX104 4-Channel Car Amplifier – 400W Max, Efficient Class D, Bridgeable Design, Hi-Res Certified, Gold terminals, Clean Output, Low Interference - Image 4](https://m.media-amazon.com/images/I/71as8VpTj8L.jpg)
![Pioneer GM-DX104 4-Channel Car Amplifier – 400W Max, Efficient Class D, Bridgeable Design, Hi-Res Certified, Gold terminals, Clean Output, Low Interference - Image 5](https://m.media-amazon.com/images/I/615XiWjAu7L.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Goo
*by M***N on 26 July 2026*

Good

### ⭐⭐⭐⭐⭐ More power and sound clarity!
*by A***2 on 23 July 2026*

I installed the Pioneer GM-DX104 in my 2024 Subaru Forester Sport, and the improvement was far beyond my expectations. The sound quality improved dramatically. Vocals became much clearer, the soundstage opened up, and the door speakers now have much more power and detail. Even at higher volumes, the sound stays clean without distortion. It honestly feels like upgrading to a completely different audio system. Before installing the amplifier, the subwoofer tended to overpower the system, making the midrange and highs sound muddy and less defined. After adding the GM-DX104, the mids and highs became much clearer and more balanced. Because of that, I actually needed to increase the subwoofer level slightly to restore the bass balance I preferred. The wiring was also very straightforward. The semi-transparent yellow wire was used for the power cable, and the semi-transparent brown wire was the ground cable, making the installation easy to understand and reducing the chance of wiring mistakes. I originally considered mounting the amplifier behind the head unit inside the center console because of its compact size. However, after considering heat dissipation, I decided to install it under the front passenger seat where there is much better airflow. It fits perfectly there while allowing plenty of ventilation. This has been the most cost-effective upgrade I've made to my car audio system, and I highly recommend it to anyone looking for a compact 4-channel amplifier.

### ⭐⭐⭐⭐⭐ Aplificatore Top
*by G***I on 1 July 2026*

Amplificatore pazzesco, ha letteralmente trasformato il suono della mia auto! La qualità dell'audio è al top: suono pulitissimo, zero distorsioni anche ad alto volume e bassi potenti che non coprono le voci. Gestisce anche il calore alla perfezione, rimanendo sempre a temperature sicure. ​L'unica nota: per chi lo monta con un'autoradio aftermarket, nella confezione ci vorrebbe un adattatore a 16 pin incluso, perché senza si rischia di impazzire un po' con i collegamenti e i cablaggi. ​A parte questo, è un prodotto definitivo. Consigliatissimo!

## Frequently Bought Together

- Pioneer GM-D1004 4-Channel Class FD Bridgeable Car Amplifier – 400W Max Power, 45W RMS
- BOSS Audio Systems KIT2 8 Gauge Complete Car Amplifier Installation Wiring Kit with Power Cables, Ground Cables, Turn-On Wire, Speaker Wire, Terminals

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-19*