Finished subwoofer idea.... what do you think?

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paulspencer said:
Dipole is not always as bad as you may think for SPL. If you make a U frame where cancellation occurs only below 60 Hz, then at 30 Hz you are only 6db behind a sealed box. Suppose you can hit a crazy 130db at 30 Hz, then the dipole version will reach 124, which is still crazy loud. Wild figures I know, I have no idea how much SPL you can get out of this thing. However, if you have a lot of SPL that you can't use, why not do OB and get the ultimate in SQ, and make that massive displacement useable!

This is the reason for my interest in this technology - an affordable dipole with high SPL that isn't too imposing.
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according to BB6 with 1/3 of the max displacement in 10 cubes sealed it's 134hz at 12hz... at full displacement (if this is even possible I don't know) it's around 141db at 12-35hz.... that's with excursion around 150mm one way which it reaches at 9hz
 
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