Hi
I use a Wadia 7 and tweaked out Audio note 5 Dac, it rules - PERIOD. Solid state dacs are sonically the sum of their parts and it's very easy to hear that dead, dry, cold, hard, soul less sound no matter the make - therefore Wadia Dacs I'm not a fan of - but their earlier transports using the Teac VDRS system are a different matter.
All this said, don't be folded by MAC / PC / HD sources either, (the current flavor of the month etc) on paper it may make sense but as we know physics dictates that 'things' don't sound how they measure ! e.g vacuum tubes.
I've even gone to testing out more 'modern' transports that use PC floppy drives and believe me - you can hear what's missing. The Wadia 7 is like the Garrard 301, potentially dated in the eyes of many whom believe much of the audio press garbage that's put out there to keep punters neurotic and therefore buying - but partnered with the right equipment it's possibly one of the best still available. Don't take my word for it though, borrow a 7 and the best Audio Note Dac you can and see for yourself.