Axiom Home Page Forums General Discussion Stereo In-Wall Speaker and adjoining room

To the contrary, I have actually read many papers from Dr's in Acoustics, some that own Soundproofing business's of their own. It is all about what is impregnated within the felt, not tar paper. In addition, there are many people on AVSforum, Hometheatershack, to mention a few that would beg to differ with you.