I am about to pull the trigger on a MSB Reference DAC. My question is this. What's the possibility of running my Pass XP-27 phono pre into this DACs balanced analog input? Does the signal stay in analog domain or is it converted to digital some how? I've read a lot about whether to run the DAC directly to power amps or to a Preamp. I'll be able to test that with my VAC pre but any thoughts would be helpful.