To add to the excellent comments already posted by foreverhifi2000, you need to leave the Pass X-250 on all the time and probably 3 days to hear the true sonic benefit of theis amp especially the high end frequencies.
pass x-250 vs classe ca 200 w/ML SL-3's
i am currently running a classe ca 200 w/ ARC LS-3 preamp & have come across a great deal on a pass x-250 w/ pass X-2 preamp. i will demo the 2 this weekend. any advanced input on what the difference will be? i'm wondering if the upgrade will be significantly better?