Several years ago I turned a full-walled 10.5' x 12' 3rd garage stall into a recording studio for my younger daughter. To soundproof the room, I removed the original 1/3" drywall and added mass-loaded rubber sheeting overlaid with two layers of 1/2" drywall. I framed in a wall just in front of the roll-up garage door and applied the same treatments. Not only did the room become isolated from almost all outside noise (it also worked the other way) but the room response flattened out tremendously.
When she left for college I considered tearing it out, but ended up using it as a small dedicated 2-channel analog room. Just one chair, one rack, two speakers, lots of LPs and me. I only wish that I had added a window for a little natural light, but otherwise it's great.
When she left for college I considered tearing it out, but ended up using it as a small dedicated 2-channel analog room. Just one chair, one rack, two speakers, lots of LPs and me. I only wish that I had added a window for a little natural light, but otherwise it's great.