The room where my rig sits is an acoustic disaster. 14 feet long (speakers are here), 11 feet wide (where I sit to listen), and 8 feet high. The right wall is mostly a giant sliding glass picture window. The right has a passageway which goes on 5 feet to open up to the sink and vanity mirror, and then further on another 5 feet is the toilet.
The left wall ends up in a door, which I keep closed when I listen to music. Essentially, the room is an inverted "L" when the door is closed, and an inverted "U" when the door is open.
Will getting a set of RoomTunes help here?
Note that I cannot move anything around substantially because of living constraints. The speakers are Mission Freedom 753 and are 2 feet from the wall, 11 inches from the rear wall (Mission recommends at least 9 inches). I was thinking of getting two lengths of Iranian carpet, 3 feet wide and 7 feet long, and hanging them behind each speaker, in addition to the RoomTunes.
When I do the "clap-test" I do hear an echo.
Basically, I have a huge mid-bass hump in the room.
I have 2 framed art prints mounted (no glass) on wood on the left wall, which I kind of converted into quasi-panels by spot-gluing cotton balls in the hollow area of the rear of the frame. The 1st panel is 3 feet wide by 4.5 feet long, and the 2nd is 3 feet wide, by 2 feet long. Both frames are rigidly mounted at a distance of 3 inches from the wall.
Thank you for your valuable advice.
P.S. Bufus, thanks for the trick on finding the 1st order reflection. I try it tomorrow