---
product_id: 276485527
title: "BOSS Audio Systems R4002 Riot Series Car Audio Stereo Amplifier – 800 High Output, 2 Channel, Class A/B, 2/4 Ohm, Low/High Level Inputs, High/Low Pass Crossover, Full Range, Bridgeable, Subwoofer"
brand: "boss audio systems"
price: "€ 184.66"
currency: EUR
in_stock: false
reviews_count: 7
category: "Boss Audio Systems"
url: https://www.desertcart.com.cy/products/276485527-boss-audio-systems-r4002-riot-series-car-audio-stereo-amplifier
store_origin: CY
region: Cyprus
---

# 800W max bridged power Full range & bridgeable Variable input gain control BOSS Audio Systems R4002 Riot Series Car Audio Stereo Amplifier – 800 High Output, 2 Channel, Class A/B, 2/4 Ohm, Low/High Level Inputs, High/Low Pass Crossover, Full Range, Bridgeable, Subwoofer

**Brand:** boss audio systems
**Price:** € 184.66
**Availability:** ❌ Out of Stock

## Summary

> 🎵 Unleash Your Ride’s True Sound Potential with Boss Riot R4002!

## Quick Answers

- **What is this?** BOSS Audio Systems R4002 Riot Series Car Audio Stereo Amplifier – 800 High Output, 2 Channel, Class A/B, 2/4 Ohm, Low/High Level Inputs, High/Low Pass Crossover, Full Range, Bridgeable, Subwoofer by boss audio systems
- **How much does it cost?** € 184.66 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/276485527-boss-audio-systems-r4002-riot-series-car-audio-stereo-amplifier)

## 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

- • **Tailor Your Sound:** Variable input gain control lets you fine-tune signal strength without volume distortion.
- • **Versatile Connectivity:** Supports both low and high level inputs for seamless integration with any car audio system.
- • **Built to Last & Perform:** Compact design with 0.01% THD and 102 dB S/N ratio for professional-grade audio fidelity.
- • **Power That Packs a Punch:** Delivers up to 800W max bridged output for booming bass and crystal-clear highs.
- • **Precision Audio Engineering:** Class A/B topology combined with MOSFET power supply ensures clean, efficient sound delivery.

## Overview

The BOSS Audio Systems R4002 Riot Series is a 2-channel Class A/B car amplifier delivering up to 800 watts max power bridged at 4 ohms. Featuring a MOSFET power supply, variable gain control, and full range capability, it supports both low and high level inputs for versatile installation. With a compact footprint and professional-grade specs like 0.01% THD and 102 dB S/N ratio, it’s engineered to elevate your in-car audio experience with powerful, clear sound and reliable performance backed by a 6-year warranty.

## Description

Drive your in-vehicle audio experience up a level with the Boss Audio Riot R4002 Class A/B 2-Channel Full Range Amplifier. This 2-Ohm stable amplifier features 800 Watts Max Power with a MOSFET power supply to pump out your playlists. Customize the sound with Fixed High Pass Crossover, Variable Low Pass Crossover and Bass Boost. Control those Bass vibes with the Remote Subwoofer Control. Bridge channels for more power and flexibility. Amplifiers in the Riot Series are perfect for first time car audio buyers looking to add Bass, enhanced sound and performance to their system at an affordable price. Get your vehicle rocking with the Boss Audio R4002. For further product details, please scroll down.

Review: جيد
Review: Good amp - The review is after 8 months of usage and this works well so far. Satisfied customer

## Features

- Power - 400 Max x 2 @ 2 Ohms, 200 Max x 2 @ 4 Ohms, 800 Max Bridged x 1 @ 4 Ohms
- Full Range - With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers
- 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
- 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
- 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: 10.72” x 10.44” x 2.25”, Weight: 5.20 lbs., Speaker Impedance: 2 to 8 Ohm, THD @ RMS Output: 0.01%, S/N Ratio: 102 dB, Frequency Response: 9 Hz to 50 kHz, Fuse Quantity: 1 40 Amp ATO Blade
- Warranty - BOSS Audio Systems provides a 6 Year Platinum Online Dealer Warranty for purchases through desertcart.Com. We strongly encourage professional installation of this product to ensure proper functionality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004S50ZNA |
| Best Sellers Rank | #47,236 in Electronics ( See Top 100 in Electronics ) #28 in Car Multichannel Amplifiers |
| Country of origin | China |
| Department | BOSS AUIO |
| Item model number | R4002 |
| Manufacturer | BOSS Audio Systems |
| Product Dimensions | 27.23 x 26.52 x 5.72 cm; 2.36 kg |

## Product Details

- **Brand:** BOSS Audio Systems
- **Item dimensions L x W x H:** 27.2 x 26.5 x 5.7 centimeters
- **Manufacturer:** BOSS Audio Systems
- **Mounting type:** Freestanding
- **Number of channels:** 2

## Images

![BOSS Audio Systems R4002 Riot Series Car Audio Stereo Amplifier – 800 High Output, 2 Channel, Class A/B, 2/4 Ohm, Low/High Level Inputs, High/Low Pass Crossover, Full Range, Bridgeable, Subwoofer - Image 1](https://m.media-amazon.com/images/I/91arWIXGJWL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***D on 6 June 2023*

جيد

### ⭐⭐⭐ Good amp
*by T***E on 17 June 2022*

The review is after 8 months of usage and this works well so far. Satisfied customer

### ⭐⭐⭐⭐⭐ Review
*by A***強 on 5 May 2015*

これは‼ なかなか良いですね‼ 何とも言えない‼最高です❗(笑)

## Frequently Bought Together

- BOSS Audio Systems R4002 Riot Series Car Audio Stereo Amplifier – 800 High Output, 2 Channel, Class A/B, 2/4 Ohm, Low/High Level Inputs, High/Low Pass Crossover, Full Range, Bridgeable, Subwoofer
- 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 Cyprus*
*Store origin: CY*
*Last updated: 2026-03-05*