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

Instead of some of the expensive methods like MLV (mass loaded vinyl), Acoustiblok ($$$$), Roxul, or the less expensive Audimute (which would be my choice if you don't DIY) you can use 2 layers of 30lb roofing felt from Home depot. If attached under the drywall you won't hear anything coming through the walls. This is what I'm using on my Porterplex V3 construction.