I have a rectangular room that's 15X24, with a small extruding closet in the left rear (as facing the system when listening, behind my left shoulder for reference), and a couch about halfway back. No real architectural amonalies, just four windows and three doors. No really obvious acoustic concerns, just looking for some nominal optimization (just kinda fantastic is all I'm striving for!) Horns are in the corners on the short wall (I will try the long wall set-up some day for fun). What and where should the treatments be and where should they go based on my room dimensions? (No brainer solution: first reflection points/mirror trick, well noted, I haven't even begun experimenting with Owens-Corning and building frames, still gathering first-hand experiences with Khorn/similar room combos). Currently I use an area rug and lots of diffraction, as the room is a recording studio as well as a listening room and vintage gear storage area where the music gear and audio shelving line the walls. I do lots of inline recording, not much micing, so from that perspective my room acoustics are not deceptive or troublesome. Pics? No camera! I can't listen to it, so it's virtually useless, except maybe in cases like this! [] Thanks for responses from mostly similar working arrangements.