---
product_id: 1121438
title: "BOSS Audio Systems R1004 Riot Series 4 Channel Amplifier Car Audio - Class A/B, 400 High Output, 2-8 Ohm Stable, High/Low Level Inputs, Full Range"
brand: "boss audio systems"
price: "€ 124.12"
currency: EUR
in_stock: true
reviews_count: 13
category: "Boss Audio Systems"
url: https://www.desertcart.gr/products/1121438-boss-audio-systems-r1004-riot-series-4-channel-amplifier-car
store_origin: GR
region: Greece
---

# 400W max power output Compact 7.8x9x2 inch size 4 channels for full-range sound BOSS Audio Systems R1004 Riot Series 4 Channel Amplifier Car Audio - Class A/B, 400 High Output, 2-8 Ohm Stable, High/Low Level Inputs, Full Range

**Brand:** boss audio systems
**Price:** € 124.12
**Availability:** ✅ In Stock

## Summary

> 🎶 Unleash your ride’s true voice with Boss Riot R1004 — power, precision, and punch in one sleek package!

## Quick Answers

- **What is this?** BOSS Audio Systems R1004 Riot Series 4 Channel Amplifier Car Audio - Class A/B, 400 High Output, 2-8 Ohm Stable, High/Low Level Inputs, Full Range by boss audio systems
- **How much does it cost?** € 124.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/1121438-boss-audio-systems-r1004-riot-series-4-channel-amplifier-car)

## Best For

- boss audio systems enthusiasts

## Why This Product

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

## Key Features

- • **Peace of Mind Warranty:** Backed by a 6-year Platinum Online Dealer Warranty when purchased through desertcart.com—because your sound system deserves the best.
- • **Rock-Solid Reliability:** Class A/B topology with MOSFET power supply guarantees distortion-free sound and durability even in rugged conditions.
- • **Power That Packs a Punch:** Delivers up to 100W x 4 channels at 2 Ohms for immersive, crystal-clear audio that commands attention on every drive.
- • **Sleek & Space-Savvy Design:** Compact dimensions (7.8 x 9 x 2 inches) fit effortlessly under seats or tight spaces—perfect for the modern minimalist car setup.
- • **Versatile Input Compatibility:** Supports both high and low level inputs, ensuring seamless integration with any factory or aftermarket head unit.

## Overview

The BOSS Audio Systems R1004 Riot Series is a compact, 4-channel Class A/B amplifier delivering up to 400 watts max power with 2-8 Ohm stability. Featuring versatile high/low level inputs and a MOSFET power supply, it ensures clean, distortion-free sound. Its compact size fits tight spaces, making it ideal for first-time car audio enthusiasts seeking powerful, reliable performance backed by a 6-year warranty.

## Description

Power up your music on the trails with the Boss Audio Riot R1004 4 Channel Class A/B Amplifier. This 2-Ohm stable Amplifier features 400 Watts Max Power with a MOSFET power supply to get your music in gear. Amplifiers in the Riot Series are perfect for first time car audio buyers looking for enhanced sound and performance for their system at an affordable price. Get better sound with the Boss Audio R1004. For further product details, please scroll down.

Review: IT’S NOT THE AMP’S FAULT! - ***UPDATE 8/4/18*** I went mudding a week ago and accidentally sank my jeep in a pond 🙃 Completely flooded the floor of my interior and soaked the amp, luckily it was off. A couple days later I ripped the entire interior out and washed it out really good, like literally washed the inside of my jeep with a hose. I figured the amp had already been soaked what more harm could I do. Got everything back together after drying out, fired up the jeep, turned the stereo on and BAM! Perfect sound quality. If it can get soaked twice and still work I think that says something. *end of update* Did you know, that running your power lead in close proximity to your audio cables can cause loss of sound clarity, distortion, and you guessed it, alternator whine?! I’ve had to fix plenty of botched installs due to this. I did a little test and ran my audio cables directly next to my 4g power lead going to both my amps. Heavy whine and almost no signal clarity. Re routed my cables to run on the opposite side of my power lead and wow! Signal was clear, bassy, and no alternator whine. This amp is phenomenal and woke up the old Bose speakers I pulled out of a 2001 Pontiac GTP (2ohms at 50 watts RMS, give or take). I drive a Jeep Wrangler TJ and space is precious, so I can’t have big amps and fancy subs. This fit under my driver seat perfectly and cranks some serious audio to my speakers, even with the top down. Great price for a quality low budget system and I get lots of compliments from friends. GREAT AMP!!!
Review: Power and sound quality in the car - This amplifier exceeded my expectations. The installation was simple and the difference in the car's audio is impressive: the bass is heard deeper, the treble is clearer and in general the sound is much stronger. It does not distort even if it increases the volume and you can see the quality in every detail. In addition, the size is compact and does not take up too much space. Without a doubt, an excellent purchase for those who enjoy good music in the car.

## Features

- Power - 100 Watts Max X 4 @2-Ohms, 50 Watts Max X 4 @4-Ohms
- Class A/B Topology - Class ‘A’ Amplifiers Have Enormous Amount Of Current Flowing Through Its Output Transistors With No Audio Signal. Class ‘B’ Amplifiers Have No Current Flowing Through Its Outputs With No Audio Signal
- Low & High Level Inputs - A low level (RCA) input is measured in voltages. A high level (+/- wire) input is measured in wattages. Both essentially carry signal from your receiver to your amplifier to your speakers
- Variable Input Gain Control - The gain control is not for adjusting volume. It simply adjusts the amount of signal that is coming from your receiver and going to your amplifier
- Specs - Dimensions: 7.75” x 9” x 2”, Weight: 3.09 lbs., Speaker Impedance: 2 to 8 Ohm, THD @ RMS Output: 0.01%, S/N Ratio: 90 dB, Frequency Response: 12 Hz to 22 kHz, Fuse Quantity: 1 15 Amp ATO Blade
- BOSS Audio Systems provides a powerful 6 year Platinum Online Dealer Warranty so long as the purchase is made through desertcart.com. We strongly encourage professional installation of this product to ensure proper and safe functionality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004S50ZDA |
| Best Sellers Rank | #16,009 in Electronics ( See Top 100 in Electronics ) #29 in Car Multichannel Amplifiers |
| Brand | BOSS Audio Systems |
| Color | Black |
| Customer Reviews | 4.0 4.0 out of 5 stars (5,446) |
| Date First Available | March 15, 2011 |
| Global Trade Identification Number | 00791489115254 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.09 pounds |
| Item dimensions L x W x H | 7.8 x 9 x 2 inches |
| Item model number | R1004 |
| Manufacturer | BOSS Audio Systems |
| Maximum Output Power | 400 watts |
| Mounting Type | Surface Mount |
| Number of Channels | 4 |
| Other display features | Wireless |
| Output Power | 400 Watts |
| Product Dimensions | 7.8 x 9 x 2 inches |
| UPC | 791489115254 352937470365 |
| Voltage | 14.5 Volts |
| Whats in the box | Users manual |

## Product Details

- **Brand:** BOSS Audio Systems
- **Item dimensions L x W x H:** 7.8 x 9 x 2 inches
- **Manufacturer:** BOSS Audio Systems
- **Mounting Type:** Surface Mount
- **Voltage:** 14.5 Volts

## Images

![BOSS Audio Systems R1004 Riot Series 4 Channel Amplifier Car Audio - Class A/B, 400 High Output, 2-8 Ohm Stable, High/Low Level Inputs, Full Range - Image 1](https://m.media-amazon.com/images/I/71Xi58jg5SL.jpg)

## Available Options

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

## Questions & Answers

**Q: whats rhe size of the amplifier**
A: Dimensions of the R4002 are 10.79" x 10.43" x 2.25".

**Q: I just purchased a BOSS Armor Series 10inch 2200 watt sub and wanted to know if this amp would push it pretty good?**
A: For a few more bucks this is a better match for your sub(SSL EV2.2000 EVOLUTION 2,000-Watt 2-Channel MOSFET Amplifier). Now  with that being said your 10" sub will not handle 2200w it will only handle very short peaks of 2200w and it would have to be clean wattage. this amp will push it well set it about 3/4 and X it over at about 90hz

**Q: Can you support two 10" subs with this one amp?**
A: Hello. Yes, this amplifier will support two subwoofers. You will need to make sure that each subwoofer does not exceed 400 watts peak power.

**Q: will this amp power 2 6x9 500 watt door speakers and 2 rear pillar speakers?**
A: It will with ok sound quality if it's for inside the car listening pleasures. However getting another one and bridging it or a higher powered amp for a good baseline would be recommended.

## Customer Reviews

### ⭐⭐⭐⭐⭐ IT’S NOT THE AMP’S FAULT!
*by J***N on July 2, 2018*

***UPDATE 8/4/18*** I went mudding a week ago and accidentally sank my jeep in a pond 🙃 Completely flooded the floor of my interior and soaked the amp, luckily it was off. A couple days later I ripped the entire interior out and washed it out really good, like literally washed the inside of my jeep with a hose. I figured the amp had already been soaked what more harm could I do. Got everything back together after drying out, fired up the jeep, turned the stereo on and BAM! Perfect sound quality. If it can get soaked twice and still work I think that says something. *end of update* Did you know, that running your power lead in close proximity to your audio cables can cause loss of sound clarity, distortion, and you guessed it, alternator whine?! I’ve had to fix plenty of botched installs due to this. I did a little test and ran my audio cables directly next to my 4g power lead going to both my amps. Heavy whine and almost no signal clarity. Re routed my cables to run on the opposite side of my power lead and wow! Signal was clear, bassy, and no alternator whine. This amp is phenomenal and woke up the old Bose speakers I pulled out of a 2001 Pontiac GTP (2ohms at 50 watts RMS, give or take). I drive a Jeep Wrangler TJ and space is precious, so I can’t have big amps and fancy subs. This fit under my driver seat perfectly and cranks some serious audio to my speakers, even with the top down. Great price for a quality low budget system and I get lots of compliments from friends. GREAT AMP!!!

### ⭐⭐⭐⭐⭐ Power and sound quality in the car
*by R***O on September 10, 2025*

This amplifier exceeded my expectations. The installation was simple and the difference in the car's audio is impressive: the bass is heard deeper, the treble is clearer and in general the sound is much stronger. It does not distort even if it increases the volume and you can see the quality in every detail. In addition, the size is compact and does not take up too much space. Without a doubt, an excellent purchase for those who enjoy good music in the car.

### ⭐⭐⭐⭐ Small loud amp
*by C***Z on January 13, 2026*

Excellent replacement for OEM system. Small powerful amp. Only setback is that has no crossover, full range only with volume (in voltage) control.

## Frequently Bought Together

- BOSS Audio Systems R1004 Riot Series 4 Channel Amplifier Car Audio - Class A/B, 400 High Output, 2-8 Ohm Stable, High/Low Level Inputs, Full Range
- 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 Greece*
*Store origin: GR*
*Last updated: 2026-03-02*