---
product_id: 659590714
title: "QS400.4 2 Ohm Mini Compact 4 Channel Car Audio Amplifier 4 x 100 Watts RMS at 2 Ohm - 400 Watt Amp Stereo 12 Volts Amp Class D Full Range Bridgeable"
brand: "prv audio"
price: "605 zł"
currency: PLN
in_stock: true
reviews_count: 5
category: "Prv Audio"
url: https://www.desertcart.pl/products/659590714-qs400-4-2-ohm-mini-compact-4-channel-car-audio
store_origin: PL
region: Poland
---

# 400W max power output Compact 4x5.4x2 inch size 4 channels stable at 2 Ohm QS400.4 2 Ohm Mini Compact 4 Channel Car Audio Amplifier 4 x 100 Watts RMS at 2 Ohm - 400 Watt Amp Stereo 12 Volts Amp Class D Full Range Bridgeable

**Brand:** prv audio
**Price:** 605 zł
**Availability:** ✅ In Stock

## Summary

> 🎶 Compact Powerhouse: Big Sound, Small Footprint, Zero Compromise!

## Quick Answers

- **What is this?** QS400.4 2 Ohm Mini Compact 4 Channel Car Audio Amplifier 4 x 100 Watts RMS at 2 Ohm - 400 Watt Amp Stereo 12 Volts Amp Class D Full Range Bridgeable by prv audio
- **How much does it cost?** 605 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/659590714-qs400-4-2-ohm-mini-compact-4-channel-car-audio)

## Best For

- prv audio enthusiasts

## Why This Product

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

## Key Features

- • **Bridged Boost Mode:** Bridge two channels to unleash 2 x 200W RMS, doubling your audio impact when you need it most.
- • **Space-Savvy Design:** Ultra-compact chassis fits discreetly anywhere in your vehicle without sacrificing power.
- • **Multi-Speaker Mastery:** Stable 2 Ohm operation lets you wire multiple speakers and customize your soundstage like a pro.
- • **Brazilian Class D Tech:** State-of-the-art digital Class D amplifier ensures maximum efficiency and minimal heat generation.
- • **Power-Packed Precision:** Delivers 4 x 100W RMS at 2 Ohm for crystal-clear, full-range sound that fills your ride.

## Overview

The PRV Audio QS400.4 is a compact yet powerful 4-channel car amplifier delivering 400 watts total (4 x 100W RMS at 2 Ohm). Engineered with advanced Brazilian Class D technology, it offers high efficiency and stable operation at low impedance, perfect for multi-speaker setups. Its small footprint (4" x 5.4" x 2") allows easy installation in tight spaces, while bridged mode doubles output power for an immersive audio experience. Ideal for audiophiles seeking professional-grade sound without bulk.

## Description

PRV Audio QS400.4 2 Ohm Mini Compact 4 Channel Car Audio Amplifier 4 x 100 Watts RMS at 2 Ohm - 400 Watt Amp Stereo 12 Volts Amp Class D Full Range Bridgeable || 4 x 100 watts TRUE RMS certified at full range output Digital Class D Brazilian Technology || 4 Channel car audio amplifier stable at 2 Ohm gives you the benefit of wiring multiple speakers and dividing the power per channel. || Engineered to be the most efficient full range amplifier so that you can get the most out of your vehicle’s electrical system! || A small footprint and compact chassis make this amplifier easy to install anywhere in the vehicle: 4″ Wide x 5.40″ Length x 2″ Height || 2 Channel Bridged - double the power output to your speakers by bridging two channels. Minimum impedance of 4 Ohms per bridged channel at output power of 2 x 200 Watts RMS.

Review: Decent amplifier - I bought this for an old camper of mine. We have been slowly rehabbing a 2007 tow behind that had been stripped of its original radio. I added this with a super cheap Bluetooth radio and 2 pairs of marine speakers. I keep the amp set to high pass on all 4 channels. Everything sounds as good as I need it to while camping. I listen to the music the whole day and never have any issues with the amp overheating or clipping. Definitely happy with my purchase.
Review: works good small compact - so far so good. powering 4 6.5 kenwood speakers matched to the amp I have a rear sub and the 6.5 equal the subwoofer output and the sound is spot on. very small hides nicely in the side panal cover. Price good and quailty seems legit. I will update if any issues

## Features

- 4 x 100 watts TRUE RMS certified at full range output Digital Class D Brazilian Technology
- 4 Channel car audio amplifier stable at 2 Ohm gives you the benefit of wiring multiple speakers and dividing the power per channel.
- Engineered to be the most efficient full range amplifier so that you can get the most out of your vehicle’s electrical system!
- A small footprint and compact chassis make this amplifier easy to install anywhere in the vehicle: 4″ Wide x 5.40″ Length x 2″ Height
- 2 Channel Bridged - double the power output to your speakers by bridging two channels. Minimum impedance of 4 Ohms per bridged channel at output power of 2 x 200 Watts RMS.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CCZYVY2K |
| Best Sellers Rank | #121,701 in Electronics ( See Top 100 in Electronics ) #93 in Car Multichannel Amplifiers |
| Brand Name | PRV AUDIO |
| Customer Reviews | 4.3 out of 5 stars 189 Reviews |
| Included Components | PRV Audio QS400.4 2 Ohm Mini Compact 4 Channel Car Audio Amplifier |
| Item Dimensions | 13.7 x 10.2 x 5.1 centimeters |
| Item dimensions L x W x H | 13.7 x 10.2 x 5.1 centimeters |
| Manufacturer | PRV AUDIO |
| Material Type | Aluminum |
| Maximum Output Power | 100 watts per channel |
| Maximum Supply Voltage | 12 Volts (DC) |
| Maximum supply voltage | 12 Volts (DC) |
| Minimum Supply Voltage | 9 Volts (DC) |
| Minimum supply voltage | 9 Volts (DC) |
| Model | QS400.4 2 Ohm |
| Mounting Type | Freestanding |
| Mounting type | Freestanding |
| Number of Channels | 4 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Output Power | 100 Watts |
| Package Type Name | Box or Blister Pack |
| Part Number | QS400.4 2 Ohm |
| UPC | 810075523898 |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts |

## Product Details

- **Item dimensions L x W x H:** 13.7 x 10.2 x 5.1 centimeters
- **Manufacturer:** PRV AUDIO
- **Maximum supply voltage:** 12 Volts (DC)
- **Minimum supply voltage:** 9 Volts (DC)
- **Voltage:** 12 Volts

## Images

![QS400.4 2 Ohm Mini Compact 4 Channel Car Audio Amplifier 4 x 100 Watts RMS at 2 Ohm - 400 Watt Amp Stereo 12 Volts Amp Class D Full Range Bridgeable - Image 1](https://m.media-amazon.com/images/I/71nrv3H+SeL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Decent amplifier
*by T***D on 20 August 2026*

I bought this for an old camper of mine. We have been slowly rehabbing a 2007 tow behind that had been stripped of its original radio. I added this with a super cheap Bluetooth radio and 2 pairs of marine speakers. I keep the amp set to high pass on all 4 channels. Everything sounds as good as I need it to while camping. I listen to the music the whole day and never have any issues with the amp overheating or clipping. Definitely happy with my purchase.

### ⭐⭐⭐⭐⭐ works good small compact
*by F***T on 10 March 2026*

so far so good. powering 4 6.5 kenwood speakers matched to the amp I have a rear sub and the 6.5 equal the subwoofer output and the sound is spot on. very small hides nicely in the side panal cover. Price good and quailty seems legit. I will update if any issues

### ⭐⭐⭐⭐⭐ GREAT BUY
*by L***! on 30 March 2026*

Great item arrived fast and on time was so small smaller than my palm and was amazing easy to install anywhere on my 88-98 GMT 400 single cab buy good quality speakers or else they will blow! Super strong amp loud power nice appearance and if radio tuned properly no distortion. Over all great experience and will buy this AMP again if I have or/# needed

## Frequently Bought Together

- PRV Audio QS400.4 2 Ohm Mini Compact 4 Channel Car Audio Amplifier 4 x 100 Watts RMS at 2 Ohm - 400 Watt Amp Stereo 12 Volts Amp Class D Full Range Bridgeable
- PRV AUDIO Super Tweeters for Car Audio, 3.5 Inch Bullet Tweeter Pair 240 Watts, PRV Tweeter TW350Ti-4 Slim Titanium Bullet PRO Shallow Tweeters Speakers 4 Ohm - Ultra Slim Easy to Mount

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-08-30*