---
product_id: 1121438
title: "BOSS Audio Systems R1004 Riot 400 Watt 4 Channel Class A/B Car Amplifier"
brand: "boss audio systems"
price: "₨49598"
currency: LKR
in_stock: true
category: "Boss Audio Systems"
url: https://www.desertcart.lk/products/1121438-boss-audio-systems-r1004-riot-400-watt-4-channel-class
store_origin: LK
region: Sri Lanka
---

# 400W max power output 4-channel full range sound MOSFET power supply for precision BOSS Audio Systems R1004 Riot 400 Watt 4 Channel Class A/B Car Amplifier

**Brand:** boss audio systems
**Price:** ₨49598
**Availability:** ✅ In Stock

## Summary

> 🎶 Unleash your ride’s roar with Boss Riot power!

## Quick Answers

- **What is this?** BOSS Audio Systems R1004 Riot 400 Watt 4 Channel Class A/B Car Amplifier by boss audio systems
- **How much does it cost?** ₨49598 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/1121438-boss-audio-systems-r1004-riot-400-watt-4-channel-class)

## 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

- • **Compact Yet Mighty:** Sleek 7.75” x 9” x 2” design fits seamlessly into your car without sacrificing power.
- • **Precision MOSFET Tech:** Advanced MOSFET power supply ensures efficient, distortion-free audio performance.
- • **Rock-Solid Reliability:** Backed by a 6-year parts and labor warranty—because your sound system deserves longevity.
- • **Versatile Full-Range Output:** Supports full-range speakers plus subwoofers for a rich, immersive soundscape.
- • **Power That Commands Attention:** Delivers 100W x 4 channels at 2 Ohms for crystal-clear, room-filling sound.

## Overview

The BOSS Audio Systems R1004 Riot is a 400-watt max 4-channel Class A/B car amplifier featuring a precision MOSFET power supply, 2-8 Ohm speaker compatibility, and full-range output. Compact and reliable, it offers a 6-year warranty and is designed to elevate your car audio experience with powerful, distortion-free sound.

## 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.

## Features

- Power - 100 Max x 4 @2 Ohms, 50 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
- Full Range - You have the option to run your speakers at full range, plus a subwoofer for some bass. Make sure the math adds up and you are good to go. i.e. Impedance loads, proper polarity.
- MOSFET Power Supply - A MOSFET is an electrical switch that allows the flow of electrical current. It controls the output voltage & current precisely by removing the output current sensing loss & eliminating all secondary feedback circuitry.
- 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.
- 6 Years Parts and Labor

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004S50ZDA |
| Best Sellers Rank | #9,168 in Electronics ( See Top 100 in Electronics ) #12 in Car Multichannel Amplifiers |
| Brand | BOSS Audio Systems |
| Built-In Media | Users manual |
| Customer Reviews | 3.8 3.8 out of 5 stars (3,711) |
| Item Type Name | BOSS Audio Systems R1004 4 Channel Car Amplifier – Riot Series, 400 Watts, Full Range, Class A/B, 2 Ohm Stable, IC (Integrated Circuit) Great for Car Speakers and Car Stereos |
| Item Weight | 3.1 pounds |
| Manufacturer | BOSS Audio Systems |
| Mfr Part Number | R1004 |
| Model Number | R1004 |
| Number of Items | 1 |
| Unit Count | 6 Count |
| Warranty Description | 6 Year Platinum Online Dealer Warranty valid only on products Sold / Shipped by Amazon.com. This offer is not valid on purchases made from third party market place sellers |

## Product Details

- **Brand:** BOSS Audio Systems
- **Item dimensions L x W x H:** 9.16 x 10.44 x 2.25 inches
- **Manufacturer:** BOSS Audio Systems
- **Mounting Type:** Surface Mount
- **Number of Channels:** 2

## Images

![BOSS Audio Systems R1004 Riot 400 Watt 4 Channel Class A/B Car Amplifier - Image 1](https://m.media-amazon.com/images/I/61MuGUxecOL.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.

## 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
- BOSS Audio Systems CH6530 Chaos Series 6.5 Inch Car Door Speakers - 300 Watts (Pair), 3 Way, Full Range, Tweeters, Coaxial, Sold in Pairs

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-08-17*