I want to add some heavy HEAVY curtains the full width of my room in front of 2 36" french door.. It was close to 5K for really good curtains runners, motors, the whole shabang.. I think it will take an honest 7-8k so I can stand to look at it.. Two more curtains on the long walls. In my room.
The better sounding rooms to me use curtains, Easy to over dampen a room. Some music needs more than others.. A friend of mine set his room up that way.. Just open or close the curtains.. Easy to clean..
He has 15k in his set up... about 70 feet of full length curtains.. Ceiling treatment and moves a heavy bear skin rug in front of him.. Staring at that bear while listening, kinda weird.. Sure works good though..
The only problem WAS line of sight remotes and equipment behind curtains..He has it all figured out now..
The weird, block diffusers, YUK..
I like beautiful things.. curves.. Not spectral decay charts on the walls.. :-)
Regards