yggdrasil dac and Innous Zenith MK2


Anyone out there using a yggdrasil dac with an Innous Zenith MK2 that would be willing to share their experience with that combination.  I've read mostly positive reviews of the yggdrasil, but none with a Zenith.  I'm currently using the Zenith with a NAD M12 pre/dac.  While the SQ is very good, I'm looking to sell the M12 and buy a tube pre amp.
128x128oldschool1948
Source to DAC may be the least ‘synergy concern’ when building a system. Any good clean and quiet source, like the mentioned ZENith, will do fine with your favorite DAC of choice. Choosing a server source IMO is more about jitter control, usb implementation, features and ergonomics and will mate well with almost any DAC of the same caliber. I’d have more synergy concerns for choosing the right tubed pre to go with your amp/speaker combo. Your pre choice will end up being more important than DAC choice. 
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Keep in mind the Yggdrasil USB input is designed in a way that will homogenize transport quality and sonics to a degree. I would opt for a digital transport that outputs S/PDIF via AES or BNC as an ideal mate for the Yggdrasil, avoiding USB and what amount to $3000 computers for audio purposes.