---
product_id: 252213234
title: "BOSS AUDIO BRS40 Replacement Speaker 4\" 50-watt Full Range Speaker"
brand: "boss"
price: "1040 kr"
currency: NOK
in_stock: true
category: "Boss"
url: https://www.desertcart.no/products/252213234-boss-audio-brs40-replacement-speaker-4-50-watt-full-range
store_origin: NO
region: Norway
---

# 4Ω impedance for crisp sound 1.7-inch mounting depth 50W peak power BOSS AUDIO BRS40 Replacement Speaker 4" 50-watt Full Range Speaker

**Brand:** boss
**Price:** 1040 kr
**Availability:** ✅ In Stock

## Summary

> 🎶 Upgrade your drive with sound that commands attention!

## Quick Answers

- **What is this?** BOSS AUDIO BRS40 Replacement Speaker 4" 50-watt Full Range Speaker by boss
- **How much does it cost?** 1040 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/252213234-boss-audio-brs40-replacement-speaker-4-50-watt-full-range)

## Best For

- boss enthusiasts

## Why This Product

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

## Key Features

- • **Plug-and-Play Replacement:** Individually packaged and ready to upgrade your car’s sound system hassle-free.
- • **Precision 4-Ohm Impedance:** Optimized for seamless integration with most car audio systems, delivering balanced audio performance.
- • **Powerful 50-Watt Peak Output:** Experience booming sound that fills your ride with clarity and punch.
- • **Compact 4-Inch Dual Cone Design:** Fits flush with a shallow 1.7-inch mounting depth for easy installation without sacrificing sound quality.
- • **Wide Frequency Range (100Hz-18kHz):** Captures rich lows and sparkling highs for a full-range audio experience.

## Overview

The BOSS AUDIO BRS40 is a 4-inch dual cone replacement speaker designed for car audio systems. It delivers up to 50 watts peak power with a 4-ohm impedance, ensuring crisp, full-range sound from 100Hz to 18kHz. Its compact 1.7-inch mounting depth allows for easy flush installation, making it the perfect upgrade for drivers seeking powerful, clear audio on the go.

## Description

4" Double Cone Replacement Speaker, Individually Boxed

## Features

- Description for 4-inch dual cone speaker - brs40 product overview 4-inch dual cone speaker, individually packaged in clamshell 50 watts peak power handling
- Comes with 25 watts RMS power impedance 4 ohms frequency response
- And 100hz-18khz polypropylene cone material mounting depth - 1.7-Inch

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001RNNX8K |
| Age Range Description | Adult |
| Antenna Location | For Smartphones or Tablets, For Computers, For Televisions, For Music Players |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Surround |
| Battery Average Life | 5 Hours |
| Best Sellers Rank | #317,260 in Electronics ( See Top 100 in Electronics ) #108 in Car Coaxial Speakers |
| Box Contents | Speaker |
| Brand Name | Boss |
| Colour | Black |
| Compatible Devices | Desktop, Karaoke Machine, Laptop, MP3 Player, Smartphone, Tablet |
| Compatible with Vehicle Type | Bus, Car, RV, Tractor, Truck, Van |
| Connectivity Protocol | Bluetooth |
| Control Method | Touch |
| Controller Type | Touch Control |
| Country of Origin | USA |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,043) |
| Enclosure Material | Bone China |
| Frequency Response | 18000 Hz |
| Global Trade Identification Number | 00791489110341, 00999994548769 |
| Impedance Unit of Measure | 4 Ohms |
| Input Voltage | 12 Volts (DC) |
| Is Waterproof | false |
| Item Dimensions D x W x H | 10.3D x 10.3W x 4.6H Centimeters |
| Item Weight Unit of Measure | 0.87 Pounds |
| MP3 player | No |
| Manufacturer | BOSS Audio Systems |
| Maximum Range | 25 metres |
| Model Name | BRS40 |
| Model Number | BRS40 |
| Mounting Type | Flush Mount |
| Network Connectivity Technology | Auxiliary |
| Number of Audio Channels | 2 1 |
| Number of Batteries | 1 12V batteries required. |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Product Features | Radio |
| Speaker Maximum Output Power | 50 Watts |
| Speaker Size | 4 Inches |
| Speaker Type | Component |
| Specific Uses For Product | car audio systems replacement |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Speaker Diameter Unit of Measure | 4 Inches |
| UPC | 523161112950 999994548769 999994339039 617407313352 809186297385 328996141256 070071263581 809385692271 072090792981 100010956615 014445412151 791489110341 |
| Unit Count | 1 Count |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | Bluetooth |
| Woofer Driver Diameter | 4 Inches |

## Product Details

- **Audio Output Mode:** Surround
- **Brand:** Boss
- **Connectivity Technology:** Auxiliary
- **Frequency Response:** 18000 Hz
- **Speaker Maximum Output Power:** 50 Watts

## Images

![BOSS AUDIO BRS40 Replacement Speaker 4" 50-watt Full Range Speaker - Image 1](https://m.media-amazon.com/images/I/31CW5UImkBL.jpg)
![BOSS AUDIO BRS40 Replacement Speaker 4" 50-watt Full Range Speaker - Image 2](https://m.media-amazon.com/images/I/51t22Mzg9mL.jpg)
![BOSS AUDIO BRS40 Replacement Speaker 4" 50-watt Full Range Speaker - Image 3](https://m.media-amazon.com/images/I/51MLLrUSs9L.jpg)
![BOSS AUDIO BRS40 Replacement Speaker 4" 50-watt Full Range Speaker - Image 4](https://m.media-amazon.com/images/I/41HGCYP1RhL.jpg)
![BOSS AUDIO BRS40 Replacement Speaker 4" 50-watt Full Range Speaker - Image 5](https://m.media-amazon.com/images/I/41aztD2DulL.jpg)

## Questions & Answers

**Q: What is the ohm rating on these speakers?**
A: 4 ohm's

**Q: Does this fit 2011 Ram 1500 dash speaker?**
A: The only sure way to tell is to take out the old speaker and measure it. If yours is not the size of the BRS35, there are other sizes available.

**Q: is it important to use the plastic mounting ring?**
A: Not if the speaker fits without them.  I installed them in the front doors in my old Escort without them and they work fine.

**Q: Is it a pair of speakers or just one speaker?**
A: Just one at a time. So you really have to order 2 of them if you need a pair.

Sold at unit.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.no/products/252213234-boss-audio-brs40-replacement-speaker-4-50-watt-full-range](https://www.desertcart.no/products/252213234-boss-audio-brs40-replacement-speaker-4-50-watt-full-range)

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*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-10-04*