if you look into the MHDT DACs, you also might want to look into a USB converter of at least some sort. The MHDT DACs sound great, but they sound much better with a clean digital signal that is reclocked by a capable USB converter.
Examples are -
Bel Canto's 24/96 USB converter (usually go used for $300-400)
Empirical Audio's Turbo-2 or Turbo-3 (they can go anywhere from $400 - $800 used)
Sonicweld's new converter. This one just came out recently, not sure of the reviews on it and it's as pricey as empirical audio's stuff.
Full disclosure - I may end up listing my Turbo-3 and MHDT Havana in the upcoming weeks if I stick with the Isabellina. So please don't take my suggestions as a sales pitch.
Examples are -
Bel Canto's 24/96 USB converter (usually go used for $300-400)
Empirical Audio's Turbo-2 or Turbo-3 (they can go anywhere from $400 - $800 used)
Sonicweld's new converter. This one just came out recently, not sure of the reviews on it and it's as pricey as empirical audio's stuff.
Full disclosure - I may end up listing my Turbo-3 and MHDT Havana in the upcoming weeks if I stick with the Isabellina. So please don't take my suggestions as a sales pitch.