Interesting idea Mikey, however, I would want to use 3/4" MDF first then cover it with drywall. Maybe we can get Axiom to start selling raw drivers and crossovers. I can see it now...entire wall array speakers. The possibilities are endless. You could take a M60-M80 remove the speakers, insert them into the MDF in the wall, but...that is a formula for disaster in many ways, error would be costly. Now if you made the boxes first, then inserted them into the wall...that might work.