>Yes I do notice an incredible difference between triode and ultralinear. the difference being triode seems to be very warm with soft highs whereas ultralinear appears quite brillient with its highs. I am still trying to determin weather I like the 0 degree or 180 degree phase setting.I would also like to pass on that I purchased a "CLEAN POWER?" source which I was very hesitant on, I do not buy into gimmicks but felt like buying something new. I must say that after playing,taking apart and researching this product it really seems to make a difference in sound quality,however is this physcological or fact ? ...I dont know "beauty is in the ear of the beholder"!