Marsh A400S or McCormack DNA 225 or Plinius 8200


I have a pair of B&W CDM9NT speakers and am looking to upgrade the power source. The contenders are the Marsh A400S amp, the McCormack DNA225 amp, or the new Plinius 8200mk.II Integrated amp. Any feedback?
adiorio
Try to get a MINT condition used McCormack DNA-1 and you will be very happy with it. It is the best value for the money at less than $1000.
I heard them all of the above, then chose Pass X. so for me it was "none of the above."