Hi
I've treated my main picture window and smaller sides with wood shutters,(solid, no slats). Made a huge difference over blinds or drapes. I bought unfinished ones from Lowes, staind them to match my other wood surfaces, then treated them with larch resin to try and give them the best reflective surface I could find, sonically much better than regular poly. It's great. Look up mother of tone website and you'll see what I'm talking about. You can get the varnish from Sinopia. Also, since glass is not our sonic friend, I'm using Marigo dots on the windows, and it is a fantastic tweek. That might interest you as well. Good luck. If you really want to make your room sound great, it's worth it.
I've treated my main picture window and smaller sides with wood shutters,(solid, no slats). Made a huge difference over blinds or drapes. I bought unfinished ones from Lowes, staind them to match my other wood surfaces, then treated them with larch resin to try and give them the best reflective surface I could find, sonically much better than regular poly. It's great. Look up mother of tone website and you'll see what I'm talking about. You can get the varnish from Sinopia. Also, since glass is not our sonic friend, I'm using Marigo dots on the windows, and it is a fantastic tweek. That might interest you as well. Good luck. If you really want to make your room sound great, it's worth it.