---
product_id: 725191407
title: "BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speakers - 50 Watts Max, Sold in Individually, Use With Stereo and Tweeters"
brand: "boss audio systems"
price: "€ 9.01"
currency: EUR
in_stock: false
url: https://www.desertcart.nl/products/725191407-boss-audio-systems-brs40-4-inch-replacement-car-door-speakers
store_origin: NL
region: Netherlands
---

# 100Hz-18kHz Frequency Range 50W Max Power Polypropylene Woofer Cone BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speakers - 50 Watts Max, Sold in Individually, Use With Stereo and Tweeters

**Brand:** boss audio systems
**Price:** € 9.01
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Upgrade your ride’s vibe with sound that commands attention!

## Quick Answers

- **What is this?** BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speakers - 50 Watts Max, Sold in Individually, Use With Stereo and Tweeters by boss audio systems
- **How much does it cost?** € 9.01 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/725191407-boss-audio-systems-brs40-4-inch-replacement-car-door-speakers)

## 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

- • **Durable Build:** Polypropylene woofer cone and foam surround ensure long-lasting performance.
- • **Wide Frequency Range:** Hear every detail from deep bass to sparkling highs with 100Hz to 18kHz response.
- • **Powerful Sound Output:** 50 Watts max power delivers crisp, clear audio that transforms your drive.
- • **Perfect Fit Replacement:** 4-inch size designed to seamlessly upgrade your car’s audio system.
- • **Versatile Compatibility:** Works effortlessly with stereos and tweeters for a custom sound setup.

## Overview

The BOSS Audio Systems BRS40 is a 4-inch full-range replacement car door speaker delivering up to 50 watts max power and a frequency response from 100Hz to 18kHz. Featuring a durable polypropylene woofer cone and foam surround, it’s sold individually and designed for seamless integration with existing stereos and tweeters, perfect for millennial professionals seeking a premium in-car audio upgrade.

## Description

Replacement 4" 50W Full Range Speaker (Sold Single)

## Features

- Full Range 4" Speaker Single
- 50 Watts MAX 25 Watts RMS Power Handling
- 100 Hz to 18 kHz Frequency Response and dB Sensitivity
- Polypropylene Woofer Cone and Foam Surround
- Sold Individually

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Compatible Devices | Desktop, Laptop, MP3 Player, Smartphone, Tablet |
| Subwoofer Diameter | 4 Inches |
| Item Weight | 395 g |
| Is Waterproof | False |
| Maximum Range | 25 Meters |
| Control Method | Remote |
| Speaker Size | 4 Inches |
| Batteries Required | No |
| Speaker Count | 1 |
| Manufacturer | BOSS Audio Systems |
| Item Model Number | BRS40 |
| Model Year | 2013 |
| Wattage | 50 W |
| Product Dimensions | 18.59 x 4.9 x 15.29 cm; 394.63 g |

## Product Details

- **Brand:** BOSS Audio Systems
- **Speaker Maximum Output Power:** 50 Watts
- **Mounting Type:** Tabletop Mount
- **Speaker Type:** _____
- **Recommended Uses For Product:** For Televisions

## Images

![BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speakers - 50 Watts Max, Sold in Individually, Use With Stereo and Tweeters - Image 1](https://m.media-amazon.com/images/I/61mFc9jCqTL.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.nl/products/725191407-boss-audio-systems-brs40-4-inch-replacement-car-door-speakers](https://www.desertcart.nl/products/725191407-boss-audio-systems-brs40-4-inch-replacement-car-door-speakers)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-25*