Garage
Shop

Boss MR50B (Black Version)

300W Peak (150W RMS) 5.25" MR Series 2-Way Marine Coaxial Speakers

Boss
Shop all Boss
highlight-star-icon

• 150 watts Max Each, 75 watts RMS Each
• 1" Dome Tweeter
• Polypropylene Material
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 2.2"

Learn more about the mr50b

We apologize

This item has been discontinued

Description


Boss brand icon

Authorized dealer

Product Details:

  • 5-1/4" Full-range Marine Speakers
  • Power Handling:
    • Peak: 300 watts per pair / 150 watts each
    • RMS: 150 watts per pair / 75 watts each
  • Polypropylene cone material
  • Cloth speaker surround
  • 1" Dome Tweeters
  • Impedance: 4 ohm
  • Marine Certified
  • Top-mount Depth: 2.2"
  • Cutout Dimensions: 3.9"
  • Frequency Response: 80 - 20000 Hz
  • Sensitivity: 89 dB
  • Grilles included
  • Authorized Internet Dealer
  • 3 Year Manufacturer's Warranty

  • Priced Per Pair


Best selling similar products

MARINESTADIUM82M small

JBL Stadium Marine 82M (JBLMARSPKSD82MGAM)

• 500 watts Peak Each, 200 watts RMS Each
• Mylar Dome tweeters
• Convertible design works as component or coaxial
• Polypropylene material
• Impedance: 3 ohm
• Sensitivity: 92 dB
• Mounting Depth: 3-3/16"

$147.95

List price $499.95

DB652 small

Polk Audio DB652 (DB 652)

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

(12)

$109.00

List price $119.99

KM65 small

Kicker KM65 (45KM654)

• 195 watts Peak Each, 65 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Includes 2 charcoal and 2 white grilles
• Injection Molded Polypropylene material
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Mounting Depth: 2-7/8"

(2)

$159.96

List price $219.99

MVSP65 small

NVX MVSP65 (Includes White & Black Grill Sets)

• 300 watts Peak Each, 100 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene material
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Mounting Depth: 2.37"

(2)

$179.99

List price $239.99

HXM65 small

Diamond Audio HXM65

• 400 watts Peak Each, 80 watts RMS Each
• 1" Titanium Dome tweeters
• Kevlar Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 2.18"

$399.99

List price $399.99

51KM604WL small

Kicker 51KM604WL

• 150 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Dome tweeter
• UV-Treated Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Mounting Depth: 2-1/2"

$95.96

List price $139.99

DB402 small

Polk Audio DB402 (DB 402)

• 135 watts Peak Each, 45 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

(4)

$90.00

List price $99.99

HXM525 small

Diamond Audio HXM525

• 300 watts Peak Each, 60 watts RMS Each
• 1" Titanium Dome tweeters
• Kevlar Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 2.18"

$399.99

List price $399.99

M6-770X-S-GwGw small

JL Audio M6-770X-S-GwGw

• 100 watts RMS Each
• 1" Silk Dome Tweeter
• Injection Molded Polypropylene Material
• Impedance: 4 ohm
• Sensitivity: 91 dB
• Mounting Depth: 3.32"

(1)

$729.99

List price $729.99

M2-TS small

Rockford Fosgate M2-TS

• 1” Aluminum Pro Audio Marine Horn Tweeter Kit
• 800 watts Peak Each
• 200 watts RMS Each
• 4 ohm Impedance

(1)

$189.99

List price $189.99

Specifications & Details


Speaker Specifications
Priced Per
Pair
Speaker Size
5-1/4"
Design
Full-range
Tweeter Design
Dome
Tweeter Size
1"
Woofer Composition
Polypropylene
Woofer Surround
Cloth
Peak Power Handling
150 watts
RMS Power Handling
75 watts
Total RMS Per Pair/Set
150 watts
Total PEAK Per Pair/Set
300 watts
Sensitivity
89 dB
Frequency Response
80 - 20000 Hz
Impedance (Per Voice Coil)
4 ohm
Top-Mount Depth (Mounting Depth)
2.2"
Cutout Dimensions
3.9"
Number of Speakers
2
General specifications
Speaker Grilles
Yes
Illumination
None
Color
Black
Marine Certified
Yes
Warranty and Return Policy
Parts Warranty Duration
3 years
Labor Warranty Duration
3 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

MR50B

Weight:

3.35lbs

Internal SKU:

mr50b

Internal Product ID:

3969

Customer Ratings & Reviews


Boss MR50B (Black Version) thumbnail image

5 star
47%
4 star
42%
3 star
11%
2 star
0%
1 star
0%



Durability
4.4
Value
4.7
Features
4.2
Design
4.4
Usability
4.7

Customer Reviews

Sort by:

Loading...

Decent speakers for the money

These speakers are descent for the money. I installed in a 1998 Bayliner Capri and I had to cut the hole slightly larger than the original speaker hole. they just fit in the padded area so they worked out. It will take you a little time to trim the hold properly, but these will work.

By Boat Guy on April 7, 2009

65 found this helpful


WOW Great Speakers for the Boat .

I put these in the boat not expecting much.
The sound is awesome!
Hardware and instructions are all there.
PERFECT FOR THE BOAT !!!
And WaterProof......

By IdahoBrett on December 10, 2009

61 found this helpful


you get what you pay for

I wanted a cheap speaker and that's what I got .....they sound ok at low levels but get distorted at high volume

By darrin on October 13, 2010

59 found this helpful


nice

These speakers worked great and sounded great. Excellent value.

By waterboy on December 17, 2011

55 found this helpful


Great Value!

Features:

I purchased these speakers as a cheap replacement. I was amazed at the quality but two things stood out right away. First the wattage rating is an amazing 150W. This is rare in a set of speakers this small especially if you have a decent head unit which pushes 52W per channel. Other speakers were only rated to 40 and we all know what happens when you crack the sound up with those! Secondly, the frequency response was a very wide range thanks to the true dual coil. 120Hz won't obviously give you that pounding base, but it was 40 Hz lower than other 5 inch speakers.

Quality:

The construction is premium and I like the reinforced housing. Other speakers just have the magnet housing attached to the speaker plane. These had struts that backed up the attachment and will obviously reduce the chance for cracks riding through bumpy water.

All wiring was tinned and was stainless. No exposed copper to corrode. The wiring was plastic coated and was seamless. A true "marine" speaker instead of a name change.


Installation:

I have a 2001 Baylier 1950 Classic Capri and both of the factory speakers were cracked from normal wear. I had to bring the factory mounting hole out just a litte bit (1/8 inch). I used a rotary tool and a scouring blade and it was perfect. The included screws were more than long enough to penetrate the padding, speakers and set into the wood backing.

My only complaint is that the spade connectors on the speakers are just a touch smaller than the wider factory clips. I had to crimp new ends on the boat wiring, but that was the only problem I had.

I would definitely recommend these speakers to someone (especially a Bayliner owner) looking to replace or even upgrade their factory speakers.

By Matt on November 2, 2009

56 found this helpful


Boss MR50B

The speakers are easy to install, for the price are of good quality with better than I expected tone in all ranges,

I would recommend this speaker to anyone looking for quality sound at entry level prices.

By Bill on November 24, 2010

51 found this helpful


Good sound for good price

Bought a set to mount on the side of our camper. They are a good size unless you want to really crank them up but for our use they are perfect. Our radio is not very powerful so up to about 3/4 volume they sound great. The rain and sun have had no negative effect on them at all.

By David on September 8, 2010

52 found this helpful


rv useage

I replaced the external speakers on my 2009 cougar travel trailer with boss MR50B speakers. all I can say is that it was an easy job and the speakers sound great. In the northwest we sometimes get a rain storm or two during the year and I feel these speakers are up to the task. At 73 yrs. old I didn't know that the speakers were sold in pairs so I have a spare set for down the road.

By tom on August 26, 2014

50 found this helpful


Boat Speakers

Easy to install, sound good enough for my boat and use

By Nick6string on February 19, 2011

51 found this helpful


Awesome sound

I have these speakers on my motorcycle with the JVC KD-X31MBS marine stereo and they sound great. More bass than i was expecting and can hear music clearly at 85 mph.

By Scot on October 17, 2014

50 found this helpful




HAEBX5B small

JVC HAEBX5B (HA-EBX5-B) Black Sports-Clip In-Ear Headphones

In-Ear Sports-Clip Splash Proof Stereo Headphones w/ Around the Ear Design (Black)

(3)

$12.99

List price $19.95

TW28 small

Pyramid TW28

300W, 3.75" Aluminum Bullet Horn Tweeters w/1" Titanium Dome Tweeters and Swivel Housing Enclosure

(16)

$19.99

List price $39.99

PS-IPH5-OR small

Trident Perseus Case for iPhone 5 (orange)

Light-duty Shock-absorbing Silicone Sleeve with Raised Grooves and Screen Protector

$10.99

List price $14.95

VTM3501 small

BOYO Vision VTM3501

3.5" Rear View / Stand-Alone TFT-LCD Car Monitor

$129.99

List price $199.99

06VCVX102 small

Kicker 06VCVX102 / VCVX10 2 ohms

Single 10" CompVX Subwoofer Loaded in a Vented Enclosure (2 ohms Final Impedance) 06VCVX10 / VCVX102

$199.99

List price $449.99

DPH759IRC small

Absolute DPH759IRC (CREAM)

Individual 7.5" TFT-LCD Monitor Loaded in a Universal Headrest with Built-in DVD Player

(1)

$119.99

List price $399.99

PCRL2042C small

Revlon Rvst2042c

0.75 Inch Mid Size Ceramic Straightener

$17.99

List price $29.00

XMD1000+XMDKEN100 small

Terk XMD1000 + XMDKEN100

Kenwood XM Satellite Radio Solution Package

$84.99

List price $109.99

ARC-4/4811 small

American Originals ARC-4/4811

5 Cup Electric Rice Cooker

$14.99

List price $59.95

Related Searches


Save up to 10 different vehicles in your garage

Add vehicle
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.