Room tweaks:
Nuke walls to make a bigg enough space, replace windows with triple pane 46dB sound isolation windows, replace load bearing wall with glulam beams, add fake beams to make listening area symmetrical, add 8 20A dedicated circuits:
Layout surround speakers and build in underfloor tubes for speaker wires, etc. Also a tube to the sweat spot for transport, etc.:
Level floor:
Slope walls in about 1/2 inch at top to kill slapback. The front wall needed 1 1/2 inches:
Put in carpet with a path wandering to the hall from the back door:
Beams in roof are not ideal:
Change them into bass traps by putting rock wool held up by nylon straps behind furnace filters and then add acoustically transparent covers:
Oops, that’s not quite right:
Closer:
It works well, stepping into the coved space definitely is much deader:
It wasn’t all about the audio system:
Old:
New:
Close to done:
