Anybody here own one of these subs? I really would like to pull the trigger on an SVS 25-31 PC Plus, but so far I'm having some trouble getting it past the wife test. I've seen some online places selling the Velodyne for about $800, about the same as the SVS. Anybody have any links to a performance chart for this sub, similar to what SVS has for their subs? Any tips on trying to explain to my wife that in order for a sub to sound decent it has to be bigger than a shoe box?