i responded to your other post but left out the fact that i when i bought the 2 i was upgrading from the 3.
so far as i can tell from just today the difference going from 3 to 2 with the beyer 990 600s is not big.
But, that doesn't mean i won't change my mind in a few days.
maybe a hair more detail and dynamics out of the 2.
and it will push them a little farther.
any of the beyer 600 ohms are really right in the sweet spot for the 3. and the 2 aswell of course.
but if you are just planning on pushing hte 990s the 3 might be a better value.
i cna't really comment on the pre amp section. haven't used it and not sure how i would on my wa2. but someday maybe
i'll update you if my thoughts change over the next few days.
theres a good group of woo owners. so somebody else will probably chime in with a bit more experience.
good luck!
