---
product_id: 1177190
title: "BOSS Audio Systems MR50B 5.25 inch Marine Stereo Boat Speakers - 150 Watts (pair), 2 Way, Full Range Audio, Tweeters, Coaxial, Weatherproof, Sold in Pairs"
brand: "boss audio systems"
price: "VT20525"
currency: VUV
in_stock: true
reviews_count: 13
category: "Boss Audio Systems"
url: https://www.desertcart.vu/products/1177190-boss-audio-systems-mr50b-5-25-inch-marine-stereo-boat
store_origin: VU
region: Vanuatu
---

# Weatherproof for marine durability Full range 80Hz-20kHz frequency response 150 Watts peak power output BOSS Audio Systems MR50B 5.25 inch Marine Stereo Boat Speakers - 150 Watts (pair), 2 Way, Full Range Audio, Tweeters, Coaxial, Weatherproof, Sold in Pairs

**Brand:** boss audio systems
**Price:** VT20525
**Availability:** ✅ In Stock

## Summary

> 🌟 Ride the waves with sound that’s as unstoppable as you are!

## Quick Answers

- **What is this?** BOSS Audio Systems MR50B 5.25 inch Marine Stereo Boat Speakers - 150 Watts (pair), 2 Way, Full Range Audio, Tweeters, Coaxial, Weatherproof, Sold in Pairs by boss audio systems
- **How much does it cost?** VT20525 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/1177190-boss-audio-systems-mr50b-5-25-inch-marine-stereo-boat)

## 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 150W Output:** Feel every beat with robust sound that cuts through the waves.
- • **Peace of Mind Warranty:** Backed by a 3-year platinum warranty for worry-free marine adventures.
- • **Crystal Clear Audio Range:** From deep bass to crisp highs, enjoy full spectrum sound with 80Hz-20kHz frequency response.
- • **Built to Brave the Elements:** Advanced weatherproofing ensures your soundtrack never stops, rain or shine.
- • **Compact & Flush Mount Design:** Sleek 5.25-inch speakers fit seamlessly into your boat’s setup without sacrificing style.

## Overview

The BOSS Audio Systems MR50B marine speakers deliver 150 watts of weatherproof, full-range audio in a compact 5.25-inch coaxial design. Engineered with polypropylene cones and Mylar dome tweeters, these speakers offer a wide 80Hz-20kHz frequency response and 89 dB sensitivity, ensuring clear, powerful sound on any water adventure. Designed for flush mounting and backed by a 3-year platinum warranty, they’re the perfect upgrade for boaters who demand durability and premium sound quality.

## Description

Buy BOSS Audio Systems MR50B 5.25 inch Marine Stereo Boat Speakers - 150 Watts (pair), 2 Way, Full Range Audio, Tweeters, Coaxial, Weatherproof, Sold in Pairs: Coaxial Speakers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great for reviving Rockustics! - My ancient c2004 Rockustics were blown and I used these as replacements for the innerds. First I took them apart to find Fifa A16CG-21-04 speakers inside- last available on clearance for $20-$30 a pair. Definitely didn't want to drop another $800 on new Rockustics after discovering that. So I ordered these. They sounded pretty tinny when test wired naked. Agree with a review saying they sounded like a transister radio. But installed into the Rockustic shell, replicating the good seal, they now sound GREAT! Excellent bass. Know that the fit was a challenge. The Fifas had screw holes 5.25 oc and nothing out there looked to be a good fit. These are 5.25 on the face, but the included foam circle, screws and little brackets did the trick with a bit of futzing. We are again rocking on the patio. THANKS!
Review: Very Good Sound For The Money - These speakers look nice and sound very good. They are several steps above the stock speakers that came standard on our Starcraft Pontoon Boat and failed after just 2 years. Good sound without much distortion to speak of at mid-upper and high volume. I would definitely purchase these speakers again and strongly recommend them for marine applications. Well built, weather resistant construction that resists sun fading in a nice looking speaker that compliments the boat's interior nicely. One caution: the speakers are quite beefy and deep and you will need to make sure that if you are replacing a 5.5" speaker(s) with these speakers you will need to ensure you have some additional room to enlarge your speaker opening!

## Features

- Weatherproof - The MR50B have been outfitted with the latest weatherproofing techniques for protection against the elements
- Dimensions: 6.25 x 6.25 x 3.25 inches
- Mounting Depth: 2.2”, Mounting Hole: 4.94”
- Impedance: 4 ohms, Frequency Response: 80 Hz- 20 kHz
- System Sensitivity (1 W/1 m): 89 dB
- Cone: Polypropylene, Voice Coil: Single 1”
- Surround: Treated Cloth, Basket: Plastic
- Tweeter: Mylar Dome 1”, Item Weight: 2.4 Lbs. (pair)
- BOSS Audio Systems provides a powerful 3-year platinum online dealer warranty so long as the purchase is made through desertcart.com. We strongly encourage professional installation of this product to ensure proper and safe functionality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000FKP7MQ |
| Additional Features | Weatherproof |
| Age Range Description | Adult |
| Antenna Location | For Music Players |
| Audio Driver Size | 5.25 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #7,408 in Electronics ( See Top 100 in Electronics ) #44 in Marine Speakers |
| Brand | BOSS Audio Systems |
| Built-In Media | Speakers |
| Color | Black |
| Compatible Devices | Marine Stereo, MP3 Player, Smartphone, Tablet, Laptop |
| Compatible with Vehicle Type | Boat |
| Connectivity Protocol | Coaxial |
| Connectivity Technology | Coaxial |
| Control Method | Touch |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 4.4 out of 5 stars (868) |
| Enclosure Material | Polypropylene, Treated Cloth, Plastic, Mylar Dome, Aluminum |
| Frequency Response | 80 Hz |
| Global Trade Identification Number | 00791489250108 |
| Impedance | 4 Ohms |
| Is Waterproof | True |
| Item Dimensions D x W x H | 6.3"D x 3.3"W x 6.3"H |
| Item Type Name | BOSS Audio Systems MR50B 5.25 inch Marine Stereo Boat Speakers - 150 Watts (pair), 2 Way, Full Range Audio, Tweeters, Coaxial, Weatherproof, Sold in Pairs |
| Item Weight | 1.4 Pounds |
| MP3 player | No |
| Manufacturer | BOSS Audio Systems |
| Model Name | MR50B |
| Model Number | MR50B |
| Mounting Type | Flush Mount |
| Number of Audio Channels | 2.0 |
| Number of Batteries | 1 12V batteries required. |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Speaker Maximum Output Power | 150 Watts |
| Speaker Size | 5.25 Inches |
| Speaker Type | Woofer, Tweeter |
| Specific Uses For Product | boating, marine entertainment, outdoor water activities |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 5.25 Inches |
| UPC | 115970702516 102930608667 163120502394 151903157305 595641755995 809386472704 791489250108 182682353299 172304210543 015568992698 079532109291 809187121849 012302854229 755034161820 100177403991 |
| Unit Count | 1.0 Count |
| Warranty Description | 3 Year Platinum Online Dealer Warranty valid only on products Sold / Shipped by Amazon.com. This offer is not valid on purchases made from third party market place sellers |
| Warranty Type | Extended |
| Water Resistance Level | Water Resistant |
| Woofer Diameter | 5.25 Inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** BOSS Audio Systems
- **Connectivity Technology:** Coaxial
- **Frequency Response:** 80 Hz
- **Speaker Maximum Output Power:** 150 Watts

## Images

![BOSS Audio Systems MR50B 5.25 inch Marine Stereo Boat Speakers - 150 Watts (pair), 2 Way, Full Range Audio, Tweeters, Coaxial, Weatherproof, Sold in Pairs - Image 1](https://m.media-amazon.com/images/I/712Kvp6xwRL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for reviving Rockustics!
*by C***N on July 28, 2020*

My ancient c2004 Rockustics were blown and I used these as replacements for the innerds. First I took them apart to find Fifa A16CG-21-04 speakers inside- last available on clearance for $20-$30 a pair. Definitely didn't want to drop another $800 on new Rockustics after discovering that. So I ordered these. They sounded pretty tinny when test wired naked. Agree with a review saying they sounded like a transister radio. But installed into the Rockustic shell, replicating the good seal, they now sound GREAT! Excellent bass. Know that the fit was a challenge. The Fifas had screw holes 5.25 oc and nothing out there looked to be a good fit. These are 5.25 on the face, but the included foam circle, screws and little brackets did the trick with a bit of futzing. We are again rocking on the patio. THANKS!

### ⭐⭐⭐⭐⭐ Very Good Sound For The Money
*by A***R on October 17, 2015*

These speakers look nice and sound very good. They are several steps above the stock speakers that came standard on our Starcraft Pontoon Boat and failed after just 2 years. Good sound without much distortion to speak of at mid-upper and high volume. I would definitely purchase these speakers again and strongly recommend them for marine applications. Well built, weather resistant construction that resists sun fading in a nice looking speaker that compliments the boat's interior nicely. One caution: the speakers are quite beefy and deep and you will need to make sure that if you are replacing a 5.5" speaker(s) with these speakers you will need to ensure you have some additional room to enlarge your speaker opening!

### ⭐⭐⭐⭐⭐ Very Pleased, Manufacturer Specs are Wrong
*by J***N on October 24, 2011*

I needed to replace the speakers in my boat and was hoping to find speakers that matched the existing mounting holes. These are advertised as 5.25" speakers, but the face plate is a full 6" (the manufacturer told me that the face plate was 5-1/2"). The circular cut-out for mounting needs to be 4-1/2" (not 4-3/8" like the manufacturer said). I'm really not sure where the 5.25" measurement comes from; even the box calls them 5" speakers, so go figure. Fortunately for me, I needed the 6" faceplate (I guessed that the manufacturer's rep was wrong) and the mounting holes lined up perfectly. Note that your cut-out needs to be almost perfect as the screw holes are just outside its perimeter, and if you make the cut-out too big, your screws will have nothing to grab; too small and the speaker won't fit inside. The sound of these are better than the original speakers in the boat. Strong bass, good mid- and high range, and able to take the power of my new radio and be played loudly to offset the sound of the boat motor. Solidly constructed. A great buy!

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-05*