---
product_id: 2391526
title: "BRS40 4 Inch Replacement Car Door Speaker, 50 Watts"
brand: "boss audio systems"
price: "184.80 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Boss Audio Systems"
url: https://www.desertcart.tn/products/2391526-brs40-4-inch-replacement-car-door-speaker-50-watts
store_origin: TN
region: Tunisia
---

# 100Hz-18kHz frequency range Compact 4.06" x 4.06" size 50W max output power BRS40 4 Inch Replacement Car Door Speaker, 50 Watts

**Brand:** boss audio systems
**Price:** 184.80 DT
**Availability:** ✅ In Stock

## Summary

> 🎶 Upgrade your drive with sound that commands attention!

## Quick Answers

- **What is this?** BRS40 4 Inch Replacement Car Door Speaker, 50 Watts by boss audio systems
- **How much does it cost?** 184.80 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/2391526-brs40-4-inch-replacement-car-door-speaker-50-watts)

## 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

- • **Powerful 50W Output:** Delivers clear, punchy sound that elevates your daily drive without overpowering your cabin.
- • **Wide Frequency Range:** Crisp highs and balanced mids from 100Hz to 18kHz ensure your playlists sound vibrant and full.
- • **3-Year Platinum Warranty:** Confidence backed by a robust warranty, making this upgrade a no-brainer for your ride’s audio.
- • **Precision Fit & Flush Mount:** Seamlessly replaces your car door speaker with a sleek 4-inch design for effortless installation.
- • **Durable Build with Foam Surround:** Engineered with a polypropylene cone and foam surround for lasting performance and minimal distortion.

## Overview

The BOSS Audio Systems BRS40 is a 4-inch coaxial car door speaker delivering up to 50 watts of power with a frequency response spanning 100Hz to 18kHz. Its compact design and flush mount compatibility make it an ideal OEM replacement, while the polypropylene cone and foam surround ensure durability and clear sound. Backed by a 3-year platinum warranty, it’s a reliable upgrade for enhancing your vehicle’s audio experience.

## Description

desertcart.com: BOSS Audio Systems BRS40 4 Inch 50 W Single Replacement Car Door Speaker : Electronics

Review: work just fine - Clearly these are not intended to be audiophile quality speakers. But they seem well constructed and work well for my application, as OEM-replacement rear fill speakers. I'm using them behind the seats in my BMW Z3 -- even though they are full-range, they're being driven only in a mid-range capacity by the OEM H-K amp. I'm pleased.
Review: Great replacement - Have an old under cabinet radio that needed a new. Speaker it matched what I needed for it. Some slight modification to modernize it for a better newer speaker. It works well sounds good for me when listening to my music. Just so long as you're not expecting super bass or anything it actually has a good sound for a smaller speaker. And for the price it does the job I needed it to do.

## Features

- Dimensions: 4.06 x 4.06 x 1.80 inches
- Impedance: 4 ohms
- Item Weight: 0.87 Lbs.
- Mounting Depth: 1.75 inches, Mounting Hole: 4.01 inches
- Frequency Response: 100 Hz to 18 KHz
- Sensitivity: 82 dB @ 1 watt/1 meter
- Polypropylene Cone, Foam Surround
- Stamped Basket, 0.77 Inch Voice Coil
- BOSS Audio Systems provides a powerful 3-year platinum online dealer warranty. We strongly encourage professional installation of this product to ensure proper and safe functionality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001RNNX8K |
| Additional Features | Radio |
| Age Range Description | Adult |
| Antenna Location | car |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #7,364 in Electronics ( See Top 100 in Electronics ) #23 in Car Coaxial Speakers |
| Brand | BOSS Audio Systems |
| Built-In Media | Unit |
| Color | black |
| Compatible Devices | Desktop, Karaoke Machine, Laptop, MP3 Player, Smartphone, Tablet |
| Compatible with Vehicle Type | Bus, Car, RV, Tractor, Truck, Van |
| Connectivity Protocol | Coaxial |
| Connectivity Technology | Coaxial |
| Control Method | Touch |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 out of 5 stars 1,096 Reviews |
| Enclosure Material | Plastic Or Metal |
| Frequency Response | 18 KHz |
| Global Trade Identification Number | 00791489110341, 00999994548769 |
| Impedance | 4 ohm |
| Is Waterproof | False |
| Item Dimensions D x W x H | 4.06"D x 4.06"W x 1.8"H |
| Item Weight | 13.92 ounces |
| Manufacturer | BOSS Audio Systems |
| Maximum Range | 25 meters |
| Model Name | BRS40 |
| Model Number | BRS40 |
| Mounting Type | Flush Mount |
| Number of Audio Channels | 4.1 |
| Number of Batteries | 1 12V batteries required. |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Speaker Maximum Output Power | 50 watts |
| Speaker Size | 4 inches |
| Speaker Type | Coaxial |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 4 inches |
| Tweeter Diameter | 4.01 inches |
| UPC | 523161112950 999994548769 999994339039 617407313352 809186297385 328996141256 070071263581 809385692271 072090792981 100010956615 014445412151 791489110341 |
| Unit Count | 1 Count |
| Warranty Description | 3 YEAR PLATINUM DEALER WARRANTY |
| Warranty Type | Extended |
| Water Resistance Level | Not Water Resistant |
| Woofer Diameter | 4 inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** BOSS Audio Systems
- **Connectivity Technology:** Coaxial
- **Frequency Response:** 18 KHz
- **Speaker Maximum Output Power:** 50 watts

## Images

![BRS40 4 Inch Replacement Car Door Speaker, 50 Watts - Image 1](https://m.media-amazon.com/images/I/71Qu5c+NIEL.jpg)

## Available Options

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

## 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ work just fine
*by D***N on June 4, 2026*

Clearly these are not intended to be audiophile quality speakers. But they seem well constructed and work well for my application, as OEM-replacement rear fill speakers. I'm using them behind the seats in my BMW Z3 -- even though they are full-range, they're being driven only in a mid-range capacity by the OEM H-K amp. I'm pleased.

### ⭐⭐⭐⭐⭐ Great replacement
*by S***8 on November 7, 2024*

Have an old under cabinet radio that needed a new. Speaker it matched what I needed for it. Some slight modification to modernize it for a better newer speaker. It works well sounds good for me when listening to my music. Just so long as you're not expecting super bass or anything it actually has a good sound for a smaller speaker. And for the price it does the job I needed it to do.

### ⭐⭐⭐⭐ Medusa turned joe from family guy into stone
*by A***S on May 28, 2026*

I bought two of them and one came with coil rub the other was fine but i really like the sound quality it's a good product for the price but easy install with the plates that come with it and it seems relatively reliable I can say it was hard to find a clamp for the wires altogether I'd recommend

## Frequently Bought Together

- BOSS Audio Systems BRS40 50 Watt, 4 Inch , Full Range, Replacement Car Speaker - Sold Individually
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**Shop now:** [https://www.desertcart.tn/products/2391526-brs40-4-inch-replacement-car-door-speaker-50-watts](https://www.desertcart.tn/products/2391526-brs40-4-inch-replacement-car-door-speaker-50-watts)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-18*