| Re: Sonosub Baseplate distance from sub?
I asked a similar question in the AVS forum when building my down fired subs. I believe the formula is min opening = [Xmax*2] x SD. This represents the volume of air of the cone fully retracted to fully protracted. If it can't push this volume of air unrestricted, it will act like a bandpass enclosure. You should be safe using 15 for SD and just being sure you've got the min sq inches of volume underneath. Three inches ought to be plenty.
Warmon - "know what I mean Vern" |