I use the M15 mainly for two channel stereo via the analog bypass inputs (7.1 inputs). In this mode it sounds fantastic feeding my Rowland Model One. In my current setup I run my modified Kenwood Kt7550 into the 7.1 inputs using Morrow MA1s. The sound is heavenly! The M15 also does great on movies, but this is not of much importance to me as I listen to two channel 95% of the time.
Craig
Craig