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Item#: 9SIA2GA0XE1722

BOSE® Acoustimass® 5 Series III Speaker System (Black)

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Learn more about the Bose 21725


Boston Acoustics


Home Theater Speaker System
2.1 CH
Sold As
Speakers Configuration
4 Cube speakers




Dimensions & Weight
Cube speakers: 6.25" x 3" x 4"; 2.4 lbs.

Acoustimass® module: 14" x 19" x 7.5"; 18.8 lbs.


Acoustimass® module
This Bose® breakthrough works in concert with the small speakers to deliver the full range of sound. The unique Bose design produces low frequencies for all channels with no audible distortion. When the module is tucked behind a curtain or chair, all of the sound seems to come directly from the small cube speakers.

Direct/Reflecting® speaker technology
Experience lifelike spaciousness from a natural balance of reflected and direct sound—similar to a live performance.

Magnetically shielded speakers
Allows for speaker placement in close proximity to your TV without interfering with the picture quality.

Automatic protection circuitry
Circuitry protects drivers from being overdriven and provides increased reliability without interfering with the listening experience.

Syncom® computer tested
Contributes to one of the highest levels of quality and reliability in the audio industry.

Quick Info

Customer Reviews of the Bose 21725

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  • Anonymous
  • 5/20/2008 5:58:23 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsA bit under-rated

Pros: High and mid-range sounds from the cubes are very crisp, especially during gaming. System has a good all-round sound for the xbox 360, dvds and for music but fall short of excellent. The cubes deliver an amazing sound volume for thier size and look great on the top of the piano.

Cons: Bose should make it clear that the base module is not a powered sub-woofer. It does not deliver any where near the lows of a powered sub. This did not matter to me because I planned to add a sub anyway. Base module is not all that easy to hide.

Other Thoughts: I've read many negative reviews about these (positive as well). I would rate them an 8.5 to 9 on a scale of 10. I played with these quite a while during set-up. Wiring, placement and amp quality are huge variables with this system. If the buyer expects subwoofer lows from the bass module, it won't happen. The bass module is not easily driven, a weak, low current amp won't adequately drive it. I replaced inferior speaker wire with high quality Monster Cable and it made a significant improvement. Lastly, the bass module provides PLENTY of (non-sub) bass when wired and placed correctly.

4 out of 4 people found this review helpful. Did you? Yes No

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Home > 
Electronics > 
Home Audio & Home Theater > 
Home Audio Speakers > 
Bose > 
Item#: 9SIA2GA0XE1722
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