---
product_id: 34782691
title: "Sony XMS400D 4 Channel Micro Amplifier (Black)"
brand: "sony"
price: "$335.40"
currency: USD
in_stock: true
reviews_count: 10
category: "Sony"
url: https://www.desertcart.us/products/34782691-sony-xms400d-4-channel-micro-amplifier-black
store_origin: US
region: United States of America
---

# 45W per channel power Compact 8x6x2.4 inch design Built-in LP & HP filters Sony XMS400D 4 Channel Micro Amplifier (Black)

**Brand:** sony
**Price:** $335.40
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your drive with powerhouse sound in a sleek, space-smart package!

## Quick Answers

- **What is this?** Sony XMS400D 4 Channel Micro Amplifier (Black) by sony
- **How much does it cost?** $335.40 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/34782691-sony-xms400d-4-channel-micro-amplifier-black)

## Best For

- sony enthusiasts

## Why This Product

- Trusted sony brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Space-Savvy Design:** Compact form factor fits seamlessly behind your car radio, preserving cabin space.
- • **Reliable & Protected:** Built-in protection circuit with indicator ensures your amp stays safe and sound on every drive.
- • **Plug & Play Simplicity:** High or low-level input connections with hi-level sensing power-on for hassle-free installation.
- • **Tailored Audio Control:** Integrated low-pass and high-pass filters let you fine-tune your sound experience effortlessly.
- • **Power That Packs a Punch:** 45 watts continuous output per channel delivers crisp, immersive sound without distortion.

## Overview

The Sony XMS400D is a 4-channel micro amplifier delivering 45W per channel with Class-D efficiency. Its compact design (8x6x2.4 inches) fits discreetly in your vehicle, while built-in low-pass and high-pass filters provide precise audio tuning. Featuring versatile input options and a protection circuit, it offers reliable, high-quality sound enhancement for your car audio system.

## Description

Power up your in-car sound with the XM-S400D 4-channel amplifier. With a continuous power output of 45 watts per channel, your music comes to life with depth and detail. Its compact size allows you to get the sound you deserve without losing any of the space that you need. Frequency Response: 20-20 kHz

Review: Great upgrade - This amp works great, I hook it to the old cigarette lighter circuit that is 15amps so no need for extra wiring, clean and powerful sound, easy to install.
Review: Little Sony beast - Ok. Just installed it on a Corolla 2009 non-jbl using the stock radio. I didnt want to replace the radio as i am not into loud music, but my speakers were damaged so i had to replace then and wanted to make use of their full potential. The amp does its job very well. I am very impressed. It fits behind the radio perfectly. It is powerful enough to output good sound without blasting, but im sure it can. Well worth the money. Had to play with the wiring but i was able to install with harnesses without cutting any of the original car wires, just the harnesses.

## Features

- Continuous power output of 45 W per channel (at 4 Ω), Class-D Technology, Compact Design
- Built-in LP (low-pass) filter and HP (high-pass) filter, Protection circuit and indicator provided.
- High level or low level input connection, Hi-level Sensing Power On

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01FUFE33O |
| Best Sellers Rank | #64,292 in Electronics ( See Top 100 in Electronics ) #116 in Car Multichannel Amplifiers |
| Customer Reviews | 4.1 4.1 out of 5 stars (126) |
| Date First Available | May 18, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1 pounds |
| Item model number | XMS400D |
| Product Dimensions | 8 x 6.12 x 2.44 inches |
| Warranty | 1 year |
| Weight | 3 Pounds |
| Wireless Remote | No |

## Images

![Sony XMS400D 4 Channel Micro Amplifier (Black) - Image 1](https://m.media-amazon.com/images/I/51g25hspBbL.jpg)

## Questions & Answers

**Q: does this have to be powered from the battery or can it be powered from head unit?**
A: Needs external power (not from head unit) from battery. I wired mine to fuse block.

**Q: will this amp handle 350 watt speakers or do i need a higher amp?**
A: 350 watt speakers probably have lower sensitivity which means a mismatch for this low wattage amp.  Search and read about speaker sensitivity which is measured in dB.

**Q: What wires are required for a 2016 Jeep Grand Cherokee with base six speaker radio?**
A: don't know I ran all new wires for four speaker system.

**Q: Is the outside of this amp made of aluminum?**
A: I believe it is thin steel plate.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great upgrade
*by J***O on June 26, 2025*

This amp works great, I hook it to the old cigarette lighter circuit that is 15amps so no need for extra wiring, clean and powerful sound, easy to install.

### ⭐⭐⭐⭐⭐ Little Sony beast
*by E***N on October 12, 2025*

Ok. Just installed it on a Corolla 2009 non-jbl using the stock radio. I didnt want to replace the radio as i am not into loud music, but my speakers were damaged so i had to replace then and wanted to make use of their full potential. The amp does its job very well. I am very impressed. It fits behind the radio perfectly. It is powerful enough to output good sound without blasting, but im sure it can. Well worth the money. Had to play with the wiring but i was able to install with harnesses without cutting any of the original car wires, just the harnesses.

### ⭐⭐⭐⭐⭐ Very good at what it does
*by S***. on July 13, 2020*

I got this because I didn't want to fill my trunk full of bulky, heavy, space eating gear. All I was after was a little more kick to the sound of my Sony CDX G1200U I purchased a couple years back and this works very well. It doesn't pick up engine noise or get real hot when used for an hour or more. It will let you know if your original recording has trash in it like hiss or pops because they will be more pronounced, but good clean original CDs or MP3 files sound great. The radio sounds like a radio but better. The installation instructions are easy to follow and it comes with all the cords and plugs you need. If you are looking for a system that will rattle your windows and license plate this isn't it, but it is a Sony product so the quality is there.

## Frequently Bought Together

- Sony XMS400D 4 Channel Micro Amplifier (Black)
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-22*