keiserrg,
I know this thread is old so perhaps this is not of interest to you any longer but I have DCS Puccini, ayre k5xe, ayre mxr and wilson audio Sasha w/p. I sent my K5xe in for upgrade and I have been listening to DCS direct to ayre mx-r. The sound is much better through the ayre k5xe than direct to amps. Bigger soundstage, better dynamics and more life like sound. I can't wait of the MP upgrade.