---
product_id: 2391526
title: "BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speaker - 50 Watts Max, Sold in Individually"
brand: "boss audio systems"
price: "₨360"
currency: SCR
in_stock: true
category: "Boss Audio Systems"
url: https://www.desertcart.sc/products/2391526-boss-audio-systems-brs40-4-inch-replacement-car-door-speaker
store_origin: SC
region: Seychelles
---

# 100Hz-18kHz frequency range Compact 4-inch size 50W max power punch BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speaker - 50 Watts Max, Sold in Individually

**Brand:** boss audio systems
**Price:** ₨360
**Availability:** ✅ In Stock

## Summary

> 🎶 Upgrade your ride’s vibe with boss-level sound clarity!

## Quick Answers

- **What is this?** BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speaker - 50 Watts Max, Sold in Individually by boss audio systems
- **How much does it cost?** ₨360 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/2391526-boss-audio-systems-brs40-4-inch-replacement-car-door-speaker)

## 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

- • **Perfect Fit Design:** Compact 4.06-inch diameter and shallow 1.75-inch mounting depth for seamless door installation.
- • **Powerful Sound Boost:** Delivers crisp, clear audio with up to 50 watts max power for an immersive driving soundtrack.
- • **Wide Frequency Range:** Covers 100 Hz to 18 kHz to capture every beat and vocal nuance with precision.
- • **Durable Build Quality:** Polypropylene cone and foam surround ensure long-lasting performance and rich sound clarity.
- • **Peace of Mind Warranty:** Backed by a 3-year platinum dealer warranty for reliable, worry-free upgrades.

## Overview

The BOSS Audio Systems BRS40 is a 4-inch coaxial car door speaker delivering up to 50 watts max power. It features a polypropylene cone, foam surround, and a frequency response spanning 100 Hz to 18 kHz, ensuring rich, clear audio. Compact and easy to install with a 1.75-inch mounting depth, it’s designed for a perfect fit in most vehicles. Supported by a 3-year platinum warranty, this speaker is a reliable upgrade for any car audio enthusiast seeking premium sound quality.

## Description

desertcart.com: BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speaker - 50 Watts Max, Sold in Individually : Electronics

## 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 | #8,034 in Electronics ( See Top 100 in Electronics ) #44 in Car Coaxial Speakers |
| Brand | BOSS Audio Systems |
| Built-In Media | Speaker |
| 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 | 4.2 4.2 out of 5 stars (5,026) |
| Enclosure Material | Polypropylene, Aluminum |
| Frequency Response | 18 KHz |
| Global Trade Identification Number | 00791489110341, 00999994548769 |
| Impedance | 4 Ohms |
| Is Waterproof | False |
| Item Dimensions D x W x H | 4.06"D x 4.06"W x 1.8"H |
| Item Weight | 0.87 Pounds |
| MP3 player | No |
| 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 |
| Specific Uses For Product | car audio systems replacement |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 4 Inches |
| Tweeter Diameter | 4.01 Inches |
| UPC | 523161112950 999994548769 999994339039 617407313352 809186297385 328996141256 070071263581 072090792981 809385692271 100010956615 014445412151 791489110341 |
| Unit Count | 1.0 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

![BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speaker - 50 Watts Max, Sold in Individually - 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.

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**Shop now:** [https://www.desertcart.sc/products/2391526-boss-audio-systems-brs40-4-inch-replacement-car-door-speaker](https://www.desertcart.sc/products/2391526-boss-audio-systems-brs40-4-inch-replacement-car-door-speaker)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-06-24*