In what price range do I need to go for a Dac ?

For less than 2k the Burson conductor with the ESS SABRE32 Dac chip seems promising. It acts as a preamp too.

I'd suggest picking up a well-reviewed sub $500 DAC (e.g. V-DAC, a15.2, Bifrost, DL3, etc.), listen to it for a while and then use it as a baseline when auditioning more expensive DAC's.

Thanks everyone for responding. I'm leaning towards the Bifrost. If it doesn't
work out for me I can always send it back.

Two really good Dacs I've heard lately are the Micromega Mydac and the Wyred Udac. I think they are around $400.

Never heard the Bifrost, but I'm currently auditioning their Gungnir. It's extremely impressive. And at $750 (without USB, $850 with), it's a stunning value.

(Merlin Master VSM's and ARS-Sonum Filarmonia / Mac Mini and Audirvana Plus software)