1. Stereo Integrity's BM mkIII...

If you want to see where shallow subwoofers are heading in the future, just look at where the SI BM mkIII is today. At only 3.4" of mounting depth, 50 % more linear excursion than the TW5, a miniscule 0.5 ft^3 enclosure requirement, and 450 watts of power handling, the BM mkIII has a big subwoofer attitude in a shallow package.
The BM mkIII is out of production but we are working on a new BM mkIII model at the moment. An ETA will be announced here on our web page when the time comes. Thanks for being patient with us.

The all new BM mkIII subwoofer.


It gives other thin subwoofers an inferiority complex.





We pulled out all the stops and have designed, and tooled, all critical components from the ground up. The BM mkIII has 28mm of total linear travel, a massive 10” diameter spider, 8 layer copper voice coil, proprietary two piece flat diaphragm, a shorting ring, and a 10 ring neodymium cluster magnet structure. We have shoved all of that technology into an incredibly compact package of only 3.4” deep. It also requires only 0.5 cubic feet of sealed enclosure space to achieve optimum performance.

The BM mkIII is setting a new standard for sound quality subwoofers, both for shallow and regular depth. The BM mkIII has the ability to reproduce deep, high level bass, and at the same time totally disappear giving you the impression that your front speakers possess massive amounts of low-end response. Not being able to pin-point where the subwoofer is located at is exactly what a top notch sound quality subwoofer should do – and that’s exactly what the BM mkIII does.

If you are after the pinnacle of SQ with good output, this is it.

   








     










See our FAQ page for frequently asked questions about the BM mkIII





  Mounting information
~ all dimensions are in millimeters. ~
All mounting specifications are with the supplied gasket:
Mounting depth: 81.3mm
Cutout diameter: 282mm
Overall diameter: 320mm

Gasket information:
Width per side: 26mm
Edge height: 18.5mm
Bottom thickness: 5mm

For a technical drawing of the BM mkIII Click Here
    
Click HERE for more technical information.

Click here for Warranty Information


looking for last years models specs.... Click Here

Stereo integrity BM mkIII

  • 12" subwoofer
  • 3.2" mounting depth*
  • 10" diameter nomex spider
  • 14mm of verified Xmax
  • 2.5" diameter, 8 layer copper voice coil
  • Dual 4 Ohm
  • 450 watts power handling
  • Flat diaphragm
  • Custom tooling of virtually every part
  • 10 ring neo magnet cluster
  • 0.5 ft^3 sealed enclosure requirement


  • *Without mounting gasket, depth is 3.4"

Ordering Information

Stereo integrity 12" BM mkIII subwoofer
"Pre-ordering has been stopped. Ordering will open up as soon as possible."


If you have any questions please contact us via our contact page

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