The EP400 is great. Been slowly upgrading my system, hence the daisy chained EP125. I would rather meld my music for the best possible sound that just run with whatever makes my walls shake the most. I don't have the room (insert wife reference here) so the EP400 is a nice fit for me. adding the 125, the bass just sound so pure. exactly what i was looking for especially since the M22's are known to lack bass. Will probably get another on one with the upgade program someday. Thanks for the SADC advice, can't wait to give it a run this weekend. Gary