Are there very good/audiophile blu-ray players?

As with many former players that try to be multi-format, there can be compromise.  What are your experiences with multi-format Blu-Ray players for sonic/audio qualities?  I have a decent CD and SACD collection that I play often... I am not that much of a rental for video so the sonic quality of any potential Blu-Ray machine would have the audio quality as the prime objective.  Thanks

My audio experience is extensive, Magnepan, Martin-Logan, Audio Research and all the usual suspects, and my video experience has been pretty mundane.