Yesterday I was able to borrow a friends DAC1 from his studio and do a bit of a side by side comparison with my VDA/VAC.
to keep it short and simple I found the DAC1 to have a slight edge in clarity but what seemed to me to be at the sacrifice of presence, as it sounded a bit thin to me.
the VDA/VAC combo, while maybe not as refined, was still pretty clear, fun and detailed and still managed to keep a good bottom end.
I would say the DAC1 is for the analytical listener where as the VDA/VAC is more fun and relaxing (enjoyable)
...now for the fun stuff... this afternoon I busted open my VDA and modded the opamp with some OPA627s... I honestly must say it now sounds almost identical to the DAC1... so close I cant really say which I really like more... the VDA did lose some of its bottom end but it is a lot more clean and accurate in the bottom end now then it was and at about $400 less then the DAC1
so to close, I would have to highly recommend the VDA/VAC (cant comment on the VDA alone as I do not have the walwart for it) it is a great DAC and at half the cost of the DAC1 it is a bargain. It by no means performs at half the level of the DAC1 and with a simple opamp mod (which some may or may not like) you can hardly distinguish the two.
I am more then content with my setup now! The next upgrade wont be until I can pick up a Maxed MPX3 or a Supra (which is some time off
).. even then that is the only thing I will change in my current rig.
VDA/VAC highly recommended? I would say so!
... now to see if I will stick with the stock op amp or the 627s...still not convinced I like the 627s more.