My dad is about to get married and move out and leave me the house. So, I've got an extra room now that I want to turn into a recording/music room. Soundproofing the room is not an options as that is majorly expensive! What I though about doing is building an isolation box to put my amps in when recording/playing. I will probalby build it 36"w x 40"h x 24" deep so it can accomodate my combo's and my 4x12 cab. I will construct is with 3/4" MDF and line it with 2" soundproofing foam. When recording I will have the mic placed infront of the amp wherever it needs to be, then close the front with a latchable door constructed the same way, and have a little cutout for the mic cable to come out. Would this allow me to run my tube amps loud enough to really push the tubes, but still keep the volume to a minum? At least to where it's not very noticable standing outside the house/room. Do any of you have better solutions?