Spectron vs Parasound vs Cary vs ?

I need help deciding on my next move for a 2 channel amp. I will be powering my B&W 802D speakers thru a Cary SLP03 tube preamp. I am currently using a Cary cinema 7B amp as I prefer it sound to the Krell 400Xi that I have been using. The Krell is too hard and etching on highs. The Cary offers a better balance and warmer sound without giving up any detail. I have also been considering the Cary Cinema 2 which is twice the ouput of the Cinema 7B @ 200W. I have been considering the Specton, Parasound A21 and perhaps a Pass amp. My budget is 4K, new or used.

Sources are Rega Planar 2 turntable, Oppo 83 SE, Rotel 1520 CD and Krell KID.