Thanks for the quote from Woo. I did emailed Jack, so far haven't receive any reply.
One of my driver tube isn't perfectly straight, the left one is a bit tilted to the left.. I guess the side effect of hand build item. Anyone having similar observation?
I'm not sure if I can give a good impression, I don't own that many amplifiers or headphones. My only other amplifier is the Schiit vali, I only have a bit of time to listen, and I can feel the WA6SE has a larger sound stage compared to the vali, I feel the music sound wider. I'm not very verse in describing my experience so please forgive me for not making much sense :).