Try the Pioneer 414 or 525 as a transport instead. I think you will hear an improvement.
Sony SCD-777ES as a transport
I am thinking of getting this unit to do double duty as a tranport and a stand alone super audio cd player. I would keep my current d to a and use the Sony as its tranport for normal cd's and use the Sony as a one box player for sacd's. Has anybody done this? Comments plesase.