i have a bonus room, over garage (2 story house), no sub i put in here sounds good, it pisses me off, i had a sony 10" woofer that sounded fantastic at a friend of mines but not at my house. i blew that trying to make it sound liek it did at his house. now i have a acoustic research 12 that is self amplified, it was pretty BA my other friends house, but here in this room, it doesnt show me nearly what it did at house. idk what the problem is, the intensity of the sound doesnt change no matter where i put it. right now in a corner behind the tv hoping for it to sound better because its a tighter space with walls to reflect off of, and still nothing, ts getting its signal from an onkyo 5.1 channel system, which has previously played this sub before, at my friends. i dont know what to do