Skip Navigation

Enjoy atmospheric surround sound

Boston Acoustic's compact MSurround speakers blend so seamlessly into your room you'll hardly notice them. But when the jets start screaming overhead in the next cinematic dogfight, you'll definitely know they're there — delivering enveloping, atmospheric surround sound. And not just in the middle of the room — everyone will hear the effects clearly no matter where they sit, thanks to the MSurround's advanced driver design.

Balanced Mode Radiator

Balanced Mode Radiator for wide-open sound

One of the keys to the MSurround's impressive performance is Boston's innovative Balanced Mode Radiator (BMR). BMR drivers use a flat speaker surface that combines the traditional "pistonic" movement of speaker cones with a "bending-wave" movement to create sound. This design allows the driver to cover a much wider range of sound — one that's normally handled by both a tweeter and a midrange — and gives the BMR exceptionally wide 180-degree sound dispersion. What does that mean? Instead of just a small "sweet spot" directly in front of the speaker, even listeners way off to the sides will enjoy crisp, accurate sound. The MSurround also uses a 3-1/2" polypropylene woofer to deliver robust mid/bass frequencies.

Got wire?

Most speakers don't include any. Learn about choosing and installing speaker wire at the Crutchfield Learning Center.
Shop our selection of speaker wire.

Product Highlights:

  • 2-1/2" Balanced Mode Radiator (BMR) mid/tweeter for a wide, open soundstage
  • 3-1/2" polypropylene low-frequency driver
  • Boston Lo-Q™ cabinet construction reduces vibration and eliminates unwanted resonance
  • high-gloss black piano lacquer finish with leatherette covered baffle provides a luxurious look and feel
  • frequency response: 95-22,000 Hz (±3dB)
  • sensitivity: 86 dB
  • impedance: compatible with 8-ohm outputs
  • recommended amplifier power: 50-150 watts
  • 5-way binding post speaker terminals
  • built-in keyhole slots for wall mounting
  • 6-1/2"W x 9-9/16"H x 4-7/16"D
  • weight: 5.5 lbs. each
  • warranty: 5 years
  • Our 60-day money-back guarantee

Boston Acoustics MSurround Reviews

Average Customer Review:

2 Reviews

Happy To Get A Pair While Still At Crutchfield

Written by: doubtingtom37 from St George, VA on September 27, 2014

Crutchfield Customer Review (What's this?)

Terrific complement to BlueSound PowerNode, along with P-Sub. Was concerned about power required, but no issue whatsoever. Vocals and most instruments are crystal clear and distinct. Crutchfield clearance was very timely.

Pros: Attractive, small, upscale quality, easy access to Boston Acoustics Support during crossover setup.

Cons: P-Sub needed due to low-end frequency response. Input power must be factored into decision.

Boston Acoustics MSurround speakers, White

Written by: Lee in IN from Evansville,IN on August 3, 2014

Crutchfield Customer Review (What's this?)

The Boston Acoustics MSurround deliver crisp voices, detailed surround treble and rocking bass. The Aluminum enclosure is rock solid and it has dual top ports for all around sound. The Balanced Mode Radiator (BMR). BMR drivers use a flat speaker surface to produce all around sound-just what a surround speaker should do. These are small, heavy, and solid for floor or wall mounting. Since the White are lower in demand I got a great price break on an open box set for $199 for the pair more than 1/2 of the Black price.

Pros: Small, solid, detailed voices and effects and rocking bass. Did I say great design, quality, sound and has 4 way wall mounts.

Cons: None

Hands-on research

What's in the box?

Download owner's manual

  • 2 Surround loudspeakers
  • 2 Detachable grilles (installed)
  • 8 Rubber feet
  • Owner's Manual (En/Fr/Sp)
  • Note about cabinet

Product Research


Two-Way Speaker Design: Along with a 3.5" polypropylene cone woofer, the MSurround features a 2.5" Balanced Mode Radiator (BMR) driver for consistent sound across a wide audio range.

  • 2.5" Balanced Mode Radiator: The MSurround loudspeaker features Balanced Mode Radiator (BMR) driver technology, designed to improve dialog and surround effects across a broad listening range. The 2.5" BMR driver uses a flat panel diaphragm that operates in two modes simultaneously. To reproduce lower frequencies, the diaphragm moves in and out like a piston--similar to how a traditional driver works. To reproduce higher frequencies, the diaphragm bends. These two modes of operation significantly extend the usable range of the driver, resulting in enhanced high-frequency dispersion for more consistent surround sound.
  • 3.5" Polypropylene Cone Woofer: The speaker also contains a 3.5" polypropylene cone woofer for dynamic bass.

High Quality Crossover Networks: Very high quality crossover networks featuring low loss film capacitors and low distortion laminated silicon steel core inductors are utilized for greater clarity and minimal coloration. A low crossover point delivers clear sound reproduction in midrange frequencies where the human ear is most sensitive.

Dual Top-Firing Ports: The Boston Acoustics MSurround has two ports on top to limit proximity effect and optimize performance over a wide range of placement options. Because of the top-firing ports, the speaker should be placed at least 3" from the ceiling.

Gloss Finish w/ Leatherette Wrap: The MSurround's gloss black finish and curved side panels with faux leather wrap can complement almost any decor.

Binding Post Speaker Terminals: The Boston Acoustics MSurround is fitted with a set of binding post speaker terminals that will accept bare wire (up to 10AWG), banana plugs (single only), spade-connectors, and pin-connectors.

Table-Top or Wall-Mount Options: Because it uses a BMR driver, the MSurround is shorter than typical speakers with a stacked tweeter and midrange. As a result, it can more easily fit on your shelf, in a cabinet, or hung on the wall. The MSurround is equipped with dual 4-way keyhole mounting brackets for vertical or horizontal wall-mounting. Self-adhesive rubber feet are included to minimize the vibration transferred from the speaker to the stand, shelf, cabinet, or wall. This will also help to protect the finish of the loudspeaker and the mounting location. The rubber feet add 0.25" to the height (when table-top mounted) or depth (when wall-mounted) of the speaker.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Customer Q&A

1 question already asked

well what i used was just 2 flat head screws with a good size head on them sticking out a little less then half inch. mount n done secure. [ Ismael  Jan 09, 2015 ]
Cannot answer the question since we are in midst of a home remodel project and speakers are still in box and in storage. [ JOHN D  Jan 06, 2015 ]
Sorry, but we are using as bookshelf speakers with decent results [ David  Jan 05, 2015 ]
iT CAME WITH IT [ Oumar  Jan 05, 2015 ]
Used the holes already provided in the rear of unit. Position required a flat placement so it worked perfectly in our application. [ Edward  Jan 05, 2015 ]
Didn't mount it. [ Earl  Jan 04, 2015 ]
The BOSTON Acoustics MSurround comes with double HD mounts built in which allows you to mount it solidly to any wall! There are 4 3/16in thick pads which I used for a tabletop setup but can be used for wall mounting and avoid vibrations. You won't be disappointed in the powerful and brilliant sound from these speakers? They are dual ported and finished with an auto grade paint finish and magnetic front mesh. Give em a try as Crutchfield guaranteed them !! [ KENNETH  Jan 04, 2015 ]