---
product_id: 218538406
title: "BRS40 50 Watt, 4 Inch, Full Range, Replacement Car Speaker - Sold Individually"
brand: "boss audio systems"
price: "€ 43.59"
currency: EUR
in_stock: true
url: https://www.desertcart.de/products/218538406-brs40-50-watt-4-inch-full-range-replacement-car-speaker
store_origin: DE
region: Germany
---

# 4 Ohm impedance 100Hz-18kHz frequency range 50W power output BRS40 50 Watt, 4 Inch, Full Range, Replacement Car Speaker - Sold Individually

**Brand:** boss audio systems
**Price:** € 43.59
**Availability:** ✅ In Stock

## Summary

> 🎶 Upgrade your drive with sound that commands attention!

## Quick Answers

- **What is this?** BRS40 50 Watt, 4 Inch, Full Range, Replacement Car Speaker - Sold Individually by boss audio systems
- **How much does it cost?** € 43.59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/218538406-brs40-50-watt-4-inch-full-range-replacement-car-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

- • **Durable Build:** Polypropylene cone and foam surround for long-lasting, distortion-free audio.
- • **Wide Frequency Range:** Hear every beat from deep bass to sparkling highs (100Hz-18kHz).
- • **Peace of Mind Warranty:** 3-year platinum online dealer warranty keeps your sound investment secure.
- • **Effortless Compatibility:** 4 Ohm impedance ensures seamless integration with most car audio systems.
- • **Power-Packed Performance:** 50 watts deliver crisp, clear sound that fills your ride.

## Overview

The BOSS Audio Systems BRS40 is a 4-inch, 50-watt full-range car speaker featuring a 4 Ohm impedance and a wide frequency response of 100Hz to 18kHz. Built with a durable polypropylene cone and foam surround, it offers reliable, high-quality sound reproduction. Compact and lightweight, it comes with a 3-year platinum online dealer warranty for lasting confidence.

## Description

BRS40 50 Watt, 4 Inch, Full Range, Replacement Car Speaker - Sold Individually

## Features

- Impedance: 4 Ohms, Frequency Response: 100 Hz - 18 kHz, Sensitivity: 82 dB
- Cone: Polypropylene, Voice Coil: 1 Inch Aluminum
- Surround: Foam, Basket: Stamped
- Dimensions: Depth 4.1” x Width 4.1” x Height 1.8”, Weight Per Pair: 1 Lbs.
- 3 Year Platinum Online Dealer Warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Number of Batteries | 1 12V batteries required. |
| Is Electric | Yes |
| Power Source | Corded Electric |
| Speaker Maximum Output Power | 50 Watts |
| Subwoofer Connectivity Technology | Wired |
| Connectivity Technology | Coaxial |
| Audio Driver Type | Dynamic Driver |
| Item Weight | 0.87 Pounds |
| Item Dimensions D x W x H | 4.06"D x 1.8"W x 4.06"H |
| Unit Count | 1.0 Count |
| Impedance | 4 Ohm |
| Number of Audio Channels | 4.1 |
| Compatible with Vehicle Type | Bus, Van, RV, Car, Truck, Tractor |
| Compatible Devices | Laptop, Personal Computer, Smartphone |
| Speaker Size | 4 Inches |
| Tweeter Diameter | 4.01 Inches |
| Water Resistance Level | Not Water Resistant |
| MP3 player | No |
| Specific Uses For Product | car audio systems replacement |
| Color | black |
| Is Waterproof | False |
| Warranty Type | Extended |
| Maximum Range | 25 Meters |
| Control Method | Touch |
| Audio Output Mode | Surround |
| Mounting Type | Flush Mount |
| Material Type | Polypropylene, Aluminum |
| Speaker Type | Coaxial |
| Additional Features | Hi Res Audio |
| Recommended Uses For Product | For Music Players |
| Subwoofer Diameter | 4 Inches |

## Product Details

- **Brand:** BOSS Audio Systems
- **Speaker maximum output power:** 50 Watts
- **Connectivity technology:** Coaxial
- **Audio output mode:** Surround
- **Mounting type:** Flush Mount
- **Material:** Polypropylene, Aluminum
- **Model name:** BRS40
- **Speaker type:** Coaxial
- **Special feature:** Radio
- **Recommended uses for product:** For music players

## Images

![BRS40 50 Watt, 4 Inch, Full Range, Replacement Car Speaker - Sold 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.de/products/218538406-brs40-50-watt-4-inch-full-range-replacement-car-speaker](https://www.desertcart.de/products/218538406-brs40-50-watt-4-inch-full-range-replacement-car-speaker)

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-02-10*