[bpape]

OK. You definitely have a system capable of the kind of detail that would be improved by treating a room. As Jack said, listening is key. Once you hear what it happening, you won't like going back. There are other things that need to be done in the room but they're tough to do temporarily without spending some money - things like first reflection points, dealing with boundary interference behind the speakers, etc.

Probably the best way to go about this is to do what I suggested and then put on some favorite demo cuts and listen carefully. Also, make sure you put on some things with heavy bass - maybe some jazz acoustic bass, etc. Listen for a few days and listen specifically to the bottom end extension, tightness, slam, clarity of vocals, etc. Also, do some HT watching/listening on things where dialog can be difficult to hear. Then, after a few days, remove the treatments and repeat and see what's changed. Sometimes it's easier to do it that way rather than listening for what it's doing when you first change it.

Auding is a term for sensing sound. There are 3 levels, auding, hearing, and listening. Listening is the most critical where you're specifically paying attention to the sounds for their sake and not as part of the whole necessarily.

Bryan