After recently changing tubes in my DAC there was a sudden increase in shrillness and glare. Of course, my first inclination was to blame the new tubes even though they were supposed to be an upgrade. Turned out the culprit *was* the tube change. It brought out a great deal more clarity at the higher frequencies which made the lack of room treatment obvious. Adding some sound absorbtion directly behind the speakers at the front wall cleared things up tremendously. Try stacking pillows there and at the point of first reflection on the side walls. It just may fix the problem!
Source of Brightness
I have rigning ears from the brightness in my system. Linn Genki, Meas Baron, Magnepan MMM (1.6s ordered). What is the source and solution? Robert Harley in TAS on SACD said that the CD brigthness/harshness wasn't there on the SACD and in the past the best CD players balance brightness with detail. Are high end makers walking a tight rope due to an inferior souce format?