PS Direct Stream Vs. Wyred 4 Sound Dac.

Chip DAC vs. FPGA.  I prefer FPGA.  

With PS Audio it depends on the OS you are running but in general the PS Audio unit sounds better.  I had the DSD with Bridge II until I became a Chord Dealer.  Admittedly pricier, I would take a TT2 with an M-Scaler over the DSD any day as you know what it is going to sound like.  THe OS with PS Audio changes the sound so much.  Ultimately the DAVE kills them all and a Dave with M-, but not in the same price range unless you are considering used one vs new PS Audio.   

The Wyred is great.  Not sure it is in any way better than Benchmark or Mytek but it is a great unit and well priced.  

Nope, the Dave only goes to 96khz through the AES and Toslink connections.  The S/PDIF BNC Coax goes to 768 while the USB goes to 768.  You connect an MScaler through the S/PDIF BNC Coax

I have access to a couple used Daves in great condition if you are interested.  $7299 in Black.