RAL,
You hit it on the mark on the balance point (SS amp & AA). I had always been an SS amp guy. The AA MK I did the right things in my system. Took some of the edge off the SS amp mids and highs, yet still has some good bass slam. The very reason I chose the Capitole over the Wadia. Plus, the Wadia just didn't engage me the way the AA did. Also, I thought it lacked the low freq. extension, at least in my system (Plinius SA-250 or Krell FPB600).
Can't wait to see if the MK II will improve on that.