Interestingly, I received a shipping notice last night and recieved the card only 15 hours later (from the other side of the country). I've only tested it with my Audio Technica A900's so far, but it seems very good. The treble peaks of lesser digital sources make me grit my teeth a bit, but the Essence's highs are smooth without losing detail. Very nice. Can't wait to try it with my main system.
I'm loving it so far. The bass is very crisp and punchy and the mids are heard better as well. The highs I can't really tell a difference with so far (compared to my Corda 3MOVE) but thats not a bad thing either as I wouldn't want them any more forward then they are really.
I read bad comments about HDAV1.3 and i get scared. I bought hdj-2000 headphones and i want to hear all that they can offer to my ears and im not enough satisfacted so i want to hear them on STX. If anyone can tell me about hdj sound compared to another (good?) headphones please speak up. My grammar is bad i know.