--- product_id: 740462416 title: "BOSS Audio Systems R1004 4-Channel Car Amplifier - Riot Series 400W Full Range A/B Stable 2 Ohm Drive with IC (Integrated Circuit) Perfect for Car Speakers & Car Stereos 400W 4 Channel A/B Class Black" brand: "boss audio systems" price: "€ 194.95" currency: EUR in_stock: true category: "Boss Audio Systems" url: https://www.desertcart.hr/products/740462416-boss-audio-systems-r1004-4-channel-car-amplifier-riot-series store_origin: HR region: Croatia --- # Class A/B stable 2 Ohm drive 400W max output power Variable gain control BOSS Audio Systems R1004 4-Channel Car Amplifier - Riot Series 400W Full Range A/B Stable 2 Ohm Drive with IC (Integrated Circuit) Perfect for Car Speakers & Car Stereos 400W 4 Channel A/B Class Black **Brand:** boss audio systems **Price:** € 194.95 **Availability:** ✅ In Stock ## Summary > 🚗 Amplify your drive with riotous sound power! ## Quick Answers - **What is this?** BOSS Audio Systems R1004 4-Channel Car Amplifier - Riot Series 400W Full Range A/B Stable 2 Ohm Drive with IC (Integrated Circuit) Perfect for Car Speakers & Car Stereos 400W 4 Channel A/B Class Black by boss audio systems - **How much does it cost?** € 194.95 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/740462416-boss-audio-systems-r1004-4-channel-car-amplifier-riot-series) ## 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 - • **Custom Signal Control:** Variable gain control lets you fine-tune signal strength without volume distortion - • **Full Range Flexibility:** Perfectly drives both car speakers and subwoofers for a complete audio upgrade - • **Class A/B Amplification:** Efficiently balances power and precision for full-range audio fidelity - • **Versatile Compatibility:** Supports both low-level RCA and high-level speaker inputs for seamless integration - • **Power-Packed Performance:** Delivers up to 100W x 4 channels at 2 Ohm for immersive sound clarity ## Overview The BOSS Audio Systems R1004 is a compact 4-channel Class A/B car amplifier delivering up to 400W total output. Designed for full-range use, it supports both speakers and subwoofers with flexible input options and variable gain control, making it a versatile upgrade for car audio enthusiasts seeking powerful, clear sound. ## Description Output - Up to 100W x 4 @ 2 ohm and up to 50W x 4 A/B technology - Class A amplifier flows a vast amount of current to the output transistor even without audio signal reception. Class B amplifier will not flow current to the output transistor when no audio signal is received. FULL RANGE - This full range amplifier can be used not only for speakers, but also subwoofers. Variable Gain Control - Gain control is not a function to adjust the volume. You can only adjust the amount of signal sent from the receiver to the amplifier. LOW & HIGH LEVEL INPUTS - Low level (RCA) inputs are measured by voltage. High level (+/-wire) inputs are measured in watts. Both basically send a signal from the receiver to the amplifier and speaker ## Features - Output - 4 x Max 100W @ 2 Ohm, 50W x 4 Max @ 4 Ohm - Class A/B Technology - Class A amplifiers flow a vast amount of current through the output transistor even when the audio signal is not received. Class B amplifier will not flow current to the output transistor when no audio signal is received - FULL RANGE - This full range amplifier can be used not only for speakers, but also subwoofers - Variable Gain Control - Gain control is not a function to adjust the volume. You can only adjust the amount of signal sent from the receiver to the amplifier - LOW & HIGH LEVEL INPUTS - Low level (RCA) inputs are measured by voltage. High level (+/-wire) inputs are measured in watts. Both basically send a signal from the receiver to the amplifier and speaker ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004S50ZDA | | Amazon Bestseller | #1,290,307 in Automotive ( See Top 100 in Automotive ) #176 in Car Multichannel Amplifiers | | Brand | BOSS Audio Systems | | Brand Name | BOSS Audio Systems | | Customer Reviews | 3.8 out of 5 stars 3,523 Your Review | | Global Trade Identification Number | 00791489115254 | | Item Dimensions | 19.8 x 22.9 x 5.1 cm | | Item Weight | 3.09 Pounds | | Item dimensions L x W x H | 19.8 x 22.9 x 5.1 cm | | Manufacturer | BOSS AUDIO | | Model | R1004 | | Number of Channels | 4 | | Number of Items | 1 | | Part Number | R1004 | | UPC | 791489115254 352937470365 | | Voltage | 14.5 Volts | ## Product Details - **Brand:** BOSS Audio Systems - **Item dimensions L x W x H:** 19.8 x 22.9 x 5.1 cm - **Manufacturer:** BOSS AUDIO - **Mounting Type:** Surface Mount - **Voltage:** 14.5 Volts ## Images ![BOSS Audio Systems R1004 4-Channel Car Amplifier - Riot Series 400W Full Range A/B Stable 2 Ohm Drive with IC (Integrated Circuit) Perfect for Car Speakers & Car Stereos 400W 4 Channel A/B Class Black - Image 1](https://m.media-amazon.com/images/I/71E1lrT603L.jpg) ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/740462416-boss-audio-systems-r1004-4-channel-car-amplifier-riot-series](https://www.desertcart.hr/products/740462416-boss-audio-systems-r1004-4-channel-car-amplifier-riot-series) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-22*