Ok, so maybe I should still just look at the Asgard and O2... I'm reading about how neutral the O2 is, what is the Asgard's signature like in comparison? I still don't even really know the differences between different sound signatures so I'm not really sure why I'm asking or even what I prefer. I guess that's not a good thing when you're trying to buy amps and DACs.
Chances are, I won't be able to tell any differences at this stage in my experience level anyway.