Valid point, but couldn't you get a nice decoder that DID do those things and then hook it up to a NICEE amp and run that to your headphones for that price? I mean, more wires, but if it has more value, then I think it is possible competition. Please correct me if I am wrong though!
I have heard nothing of the AD700x :/
Well wow haha HD558 under $100?! Go for that. I have the pc360's and the drivers are similar if not the same and it helped a TON when I used to Scrim for COD4 (vs my Razer Carcharias lol). I think that is a winner
Mad also thought the PC360 was a winner if you just wanted a competent integrated headset, there's a review of it on the first page guide. PC360 = HD558 + built in mic.
AD700x = AD700 painted black&gray instead of purple & light rose gold, maybe a headband "wing" revision.
Hooking up the little processor units + nice amp is what we do now, an amp does specific nice things, but so do DACs. I don't think people will jump straight for an x7, I think that device will be for people who have been waiting for a low noise amp circuit and a high quality DAC that also does surround.