Room treatments

Two areas where I had great success are

1. Behind the listening position I installed an 8ft vinyl blind that dropped down only 15 inches

2. On top of a book case (close to the listening position) placed a layer of 1" foam with a thick layer of vinyl on top

Those two stoppers the bulk of reflections issues I had in that room and were pretty affordable and quite invisible (the blind was behind some drapes

Turns out vinyl is one of the better materials for converting sound into heat

people should definitely work on their listening rooms

walk around clapping your hands and post what you rear - you may need more absorption

also, how close to a rear wall is your listening spot?

Great ideas williewonka! I definitely have some places that I can hide foam panels...

Randy, thanks for the clapping tip.

My sofa is only 18 inches from the rear wall and about 12 ft from my speakers. I have two diffusers about 5.5 ft high on either side of the sofa the wall. 

a lot of my issues/uncertainty come from the fact that I want the room to stay aesthetically pleasing. This is why I'm gonna do another diffuser.  I'm also going to do some simple bass traps that I can hide well...

Foam panels are so like 80s. Especially if the foam is anything like Sonex, one of the worst things ever foisted on naive gullible audiophiles. And it seems like such a good idea, you know, with the photos of recording control rooms covered with Sonex.