I am in the process of upgrading my system, and I am trying to decide what to do as far as a processor goes. I currently have a Pioneer Elite VSX-07TX receiver. I am buying an Anthem MCA 50 225w X 5 amp to push my speakers (paradigm reference v2 studio 100s, CC, and ADP). I really want to improve my 2-channel performance. I am using 2 sony 555 ES cd changers with an Escient system. I am either going to buy an outboard DAC, perhaps a Theta, Classe, Music Fidelity, etc. or buy a whole new pre/pro. I would like to spend around $1000. That basically forces me to go used, which is ok. Question is, as far as 2-channel only goes, which would be the best DAC? Outboard with receiver (analog bypass) or Lexicon? Thanks!!