I've actualy heard the omicron with the signiture 800. the speakers and the amp were broken in and it didn't sound that bad. yes it may not have been as good as it could have been for a $32500 speaker/amp setup. i did audition the krell fpb700 and, forgive me for the cliche, but found the krell a little dry and not as musical as the classe. i guess i'm wondering if the pass labs are as musical and warm yet has the resolution and dynamics that the classe posess. i am not saying anything bad about krell because as the other cliche goes, "to each his own"