Boss Audio MR4.3B 200-Watt Indoor/Outdoor Weatherproof 3-Way Speaker System - Black - Pair

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Model Number: MR4.3B
Web Code: 10589645


Weather resistant and conveniently compact, the Boss Audio MR4.3W speakers are suitable for indoor, outdoor, and marine use. These commercial-grade speakers each feature a 4" woofer, 1" tweeter, and 1.5" poly cone that work in harmony to deliver 200W of rich, high fidelity audio. They feature a rear insert keyhole and swivel mounting brackets.

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9 Years
  • Pair of multi-purpose stereo speakers are suitable for interior or exterior use
  • Weatherproof design makes these speakers suitable for marine use as well
  • Each 3-way 200W speaker delivers accurate, high fidelity sound via a 4" polypropylene woofer cone with rubber surround, a 1" tweeter, and a 1.5" poly cone for midrange
  • Compact design can be placed or mounted an many convenient locations, including your patio or as part of your home entertainment system
  • Rear insert keyhole slot for surface mounting
  • Swivel mounting brackets for wall and ceiling mounting
Number of Speakers Included
Speaker Type
Outdoor Speaker
Frequency Response
80 Hz - 18 Khz
Power Capability
200 W
85 dB
4 Ohm
Mid Range Speaker Size
1.5 in
Tweeter Size
.75 in
Woofer Size
4 in
Wireless Multi-Room Capability
Bluetooth Connectivity
Dolby Atmos


13.49 cm
20.32 cm
13.49 cm
Width (Inches)
5.31 in
Height (Inches)
8 in
Depth (Inches)
5.31 in
2.26 kg

  • waste of time

    from Kitchener, ON on March 7, 2019

    same response as someone else reviewed it. WHY do you have them listed on your site when they are not available at any location? been watching for 6 months now.

  • Why do you post them on your page when they are not available anywhere?

    from Orillia, ON on January 13, 2019


  • Boss Audio MR$. 3B Speakers

    from Bolton, ON on June 15, 2018

    Bought a pair of these in May 2018 and played them through what I thought was a good JVC receiver. The speakers sounded tinny with no bottom end. I was going to return them but I figured these speakers couldn't be that poor in quality so I decided to give them a second chance. I dumped the JVC receiver and used these speakers on an old 100 watt per channel Pioneer SX receiver I had kicking around from the eighties. The difference was incredible. The speakers sounded superb, lots of punch, great bass and the highs were excellent. I was astounded!!!! In essence, these are great speakers for the money, especially on sale. I'm using one pair in my workroom and I just purchased a second pair for the garage. My advice when using these speakers is to have a good, high quality powered source as the speakers can handle up to 200 watts. Speaker efficiency is good so you won't be using all the extra wattage but it is good to have the extra wattage available if you need it. I would highly recommend these speakers for a gazebo or any small room. I'm using a pair of Polk Audio Atrium 4s for my gazebo and these speakers sound just as good for half the price. Structurally, the Boss speakers are very well made and they appear to be able to hold up to the outdoor elements. Five stars all the way.

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