hmmm . . .. I did not realise that this was not the case (re:USB input) . . .
I have emailed Burson and hopefully will get a response back to clarify this . . . ..
I do know that the HA160D on USB sounds a whole heap better than the Cambridge Audio DAC Magic, or the Musical Fidelity V-Dac . . .
. . . on Coax, whilst they all sounded different, the difference was not as great on USB.
Secondly . . what do you mean the Sonar XT as a transport ?
. . .surely the Hard drive is the transport, the XT is the Digital-->Digital converter. . .
I believe the less conversion (hardware or software) going on, the better things often sound, hence my suggestion of using the USB input (up to 24/96) rather than the Sonar converting to Coax.
Of course, the most fun (and proper HeadFi) thing to do . . . would be to compare and have a listen to the two options, and then share your findings :)
In my experience with USB and firewire DACs (CA DAC MAgic, Mackie ONYX 24/96, Edirol PCRA30, Linear BCL, MF V-Dac, NuForce uDAC + others)
I find the Burson is an excellent choice straight from USB (or any other digital input . . .). . . haven't tried analogue ins yet.
As long as we all enjoy our music, and don't get bogged down in "mine's better than your's", then differences of opinion are welcome and valid.