This is interesting... I have a VMPS sub with a Front firing 12" and a 15" Radiator firing from the bottom. Right now it sits on a thick carpeted floor on the second floor, so its a wood subfloor. any thoughts??
What's under your sub?
Some sub manufacturers recommend placing a down-firing sub on a slab of marble/granite when the listening room is carpeted. Has anyone had any luck with that? I tried using a granite slab under my REL Storm III and found that the bass was much cleaner with the sub on the carpet and not on the granite. I have carpet over a concrete slab. Don't know if that made a difference.