---
product_id: 1314543
title: "BOSS Audio Systems MR4.3B 4 Inch Marine Speakers (Pair), Full Range, 3 Way"
brand: "boss audio systems"
price: "$236.19"
currency: USD
in_stock: true
reviews_count: 13
category: "Boss Audio Systems"
url: https://www.desertcart.us/products/1314543-boss-audio-systems-mr4-3b-4-inch-marine-speakers-pair
store_origin: US
region: United States of America
---

# 80Hz-18kHz frequency range 100% waterproof design 200W max output BOSS Audio Systems MR4.3B 4 Inch Marine Speakers (Pair), Full Range, 3 Way

**Brand:** boss audio systems
**Price:** $236.19
**Availability:** ✅ In Stock

## Summary

> 🚤 Elevate your marine vibe with sound that sails above the rest!

## Quick Answers

- **What is this?** BOSS Audio Systems MR4.3B 4 Inch Marine Speakers (Pair), Full Range, 3 Way by boss audio systems
- **How much does it cost?** $236.19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/1314543-boss-audio-systems-mr4-3b-4-inch-marine-speakers-pair)

## 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

- • **3-Way Speaker System:** Dedicated tweeter, midrange, and woofer deliver balanced, dynamic sound clarity.
- • **Powerful 200W Output:** Feel the deep, clear sound that commands attention on any boat or outdoor adventure.
- • **Wide Frequency Range:** Experience crisp highs and rich lows from 80Hz to 18kHz for full-range audio immersion.
- • **Compact 4-Inch Design:** Sleek and space-saving, perfect for stylish marine setups without compromise.
- • **All-Weather Waterproof Build:** Never worry about rain or splashes—these speakers are built to brave the elements.

## Overview

The BOSS Audio Systems MR4.3B are 4-inch, 3-way marine speakers delivering up to 200 watts of powerful, full-range sound. Featuring a waterproof design and a frequency response spanning 80Hz to 18kHz, these speakers are engineered for durability and crystal-clear audio performance in harsh outdoor and marine environments. Compact yet robust, they come with swivel brackets for flexible mounting and a 3-year platinum warranty, making them a reliable choice for boaters and outdoor enthusiasts seeking premium sound on the water.

## Description

Great Product

Review: Decent speakers. Wouldn't have a huge rager with them tho - This is the second pair. The first ones did last 6 year outside getting rained on though so money well spent
Review: These things just work! Plug them in and go! - These look and sound great! Easy to hook up and use! No issues!

## Features

- Impedance: 4 Ohms, Frequency Response: 80 Hz - 18 kHz, Sensitivity: 85 dB
- Cone: Polypropylene, Voice Coil: 1 Inch Aluminum
- Surround: Rubber, Basket: Plastic
- One .75 Inch Dome Tweeter And 1.5 Inch Poly Cone Midrange Per Speaker
- Included: Swivel Brackets
- Dimensions: Depth 5.3” x Width 5.3” x Height 8.8”, Weight Per Pair: 7.4 Lbs.
- 3 Year Platinum Online Dealer Warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BTVSWWW |
| Additional Features | Waterproof |
| Antenna Location | Music,Indoor,Outdoor |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Surround |
| Best Sellers Rank | #52,664 in Electronics ( See Top 100 in Electronics ) #95 in Marine Speakers |
| Brand | BOSS Audio Systems |
| Built-In Media | Great Product |
| Color | BLACK |
| Compatible Devices | Smartphone, Tablet, MP3 Player, Laptop |
| Compatible with Vehicle Type | Boat |
| Connectivity Technology | Coaxial |
| Control Method | App |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.5 out of 5 stars 507 Reviews |
| Enclosure Material | Plastic |
| Frequency Response | 18000 hertz |
| Global Trade Identification Number | 00791489120289 |
| Impedance | 4 ohm |
| Is Waterproof | TRUE |
| Item Dimensions D x W x H | 5.3"D x 5.3"W x 8.8"H |
| Item Type Name | Great Product |
| Item Weight | 5.9 pounds |
| Manufacturer | Boss Audio Systems, Inc. |
| Model Name | MR4.3B |
| Model Number | MR4.3B |
| Mounting Type | Panel Mount |
| Number Of Circuits | 3 |
| Number of Audio Channels | 3 |
| Number of Batteries | 1 12V batteries required. |
| Number of Items | 1 |
| Number of Power Levels | 1 |
| Speaker Maximum Output Power | 200 watts |
| Speaker Size | 4 inches |
| Speaker Type | Coaxial, Tweeter, Outdoor |
| Specific Uses For Product | personal |
| Subwoofer Connectivity Technology | Wired |
| Tweeter Diameter | 0.79 inches |
| UPC | 807032937232 803982861962 804066818834 791489118996 791489120289 |
| Unit Count | 1 Count |
| Warranty Description | Warranty |
| Warranty Type | One-Year Warranty or Limited Warranty |
| Water Resistance Level | Waterproof |
| Woofer Diameter | 4 inches |

## Product Details

- **Audio Output Mode:** Surround
- **Brand:** BOSS Audio Systems
- **Connectivity Technology:** Coaxial
- **Mounting Type:** Inside Mount,Outside Mount,Boat Mount
- **Speaker Maximum Output Power:** 200 Watts

## Images

![BOSS Audio Systems MR4.3B 4 Inch Marine Speakers (Pair), Full Range, 3 Way - Image 1](https://m.media-amazon.com/images/I/71byh9eMWtL.jpg)
![BOSS Audio Systems MR4.3B 4 Inch Marine Speakers (Pair), Full Range, 3 Way - Image 2](https://m.media-amazon.com/images/I/81P66+PWanL.jpg)
![BOSS Audio Systems MR4.3B 4 Inch Marine Speakers (Pair), Full Range, 3 Way - Image 3](https://m.media-amazon.com/images/I/71-K6JGygAL.jpg)
![BOSS Audio Systems MR4.3B 4 Inch Marine Speakers (Pair), Full Range, 3 Way - Image 4](https://m.media-amazon.com/images/I/51uIsmF2MlL.jpg)
![BOSS Audio Systems MR4.3B 4 Inch Marine Speakers (Pair), Full Range, 3 Way - Image 5](https://m.media-amazon.com/images/I/61IQQXrQIvL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Decent speakers. Wouldn't have a huge rager with them tho
*by S***N on July 1, 2026*

This is the second pair. The first ones did last 6 year outside getting rained on though so money well spent

### ⭐⭐⭐⭐⭐ These things just work! Plug them in and go!
*by J***X on November 18, 2025*

These look and sound great! Easy to hook up and use! No issues!

### ⭐⭐⭐⭐⭐ good product
*by K***H on January 21, 2026*

sound great and good value

## Frequently Bought Together

- BOSS Audio Systems MR4.3B 200 Watt Per Pair, 4 Inch, Full Range, 3 Way Weatherproof Marine Speakers Sold in Pairs
- Amazon Basics Speaker Cable, Easy Assembly, 16-Gauge, Bronze, 100 ft
- Moukey Stereo Receivers with Bluetooth 5.0, 400W 2.0 Channel Power Audio Amplifier Stereo System w/USB, SD, AUX, RCA, MIC in w/Echo, LED for Karaoke, Home Theater Speakers - MAMP1

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-05*