I don't believe it. I just figured out exactly what is wrong with my control room. I am suprised that anything I've ever done in here has been even listenable. This afternoon I finally had enough free time to do a simple test: create some pure sine waves at various frequencies and see just where the strengths and weaknesses in my little room are. I had a sneaking feeling that there was a problem around 60 - 100 hz as I always have to really carefull there to have mixes translate. I couldn't believe my ears, There is almost NO 80hz at the mix position......Help!!! It was actually rather unsetteling. An 80 hz tone is almost inaudible untill I roll back a foot. Two feet back it is at full volume. It dissapears again near the back wall and then disappears completely behind that. O.K.....I guess my plan to tear this place apart and start again from scratch is no longer something I can put off. I am going to re-orient the whole room and build out the corners. SOON Any thoughts on the best way to avoid future mode problems would be greatly appreciated. I know that my room dimensions are the problem. Will tuned traps do it? What sort of corners can I build?.......Help Thanks in advance, Charles Rieser Southwind Studio Austin, Tx.