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In Reply to: RE: Subwoofer Partially Blown? posted by hahax@verizon.net on May 11, 2016 at 21:36:39
Allen:
Can you (lawfully) provide any design/construction details of your custom subs?
Thanks,
Jeremy
Follow Ups:
Sorry I can't because I didn't build them. A good friend did and I don't have the info on the drivers. But there are tables to calculate closed boxes simply with Thiel/Small stats.
As an example one I'm curious about is the Scanspeak 25W4557/T00 which in about 3 cubic feet has a tight Qtc of about 0.60 and a box resonance of about 25.5 Hz meaning in an anechoic chamber(if you could find one big enough) would be around 5 dB down at resonance. But it would probably be flat down to at least there in a real room with floor lift even if it was feet away from walls.
Thx.
Now that I have retired, I have time for carpentry &c. My subs will be placed against walls but I have no available corners. I intend to use Velodyne SMSes for equalization, and am looking for capable passive designs.
Jeremy
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