I disn't realize that you hade already rolled your tubes before I last posted. I am happy to hear the room acoustics played a big role. I am a tube roller so I also credit the tubes you tried. I should have asked what you really wanted to change most. I am primarily a tube roller employing old stock tubes, but do appreciate that recent production tubes are very good. Frankly, in retrospect, I am a little surprised the ECC802S didn't work for you in the first place.