Okay so after some initial listening I can say that everyone who has given their first impressions are freakin spot on. Id also like to add that the DX50 is of a slower sounding nature and reminds me of the Soloist.
I just had to play each song manually to get shuffle all music to work...
Play button has a one second lag.
There is a lot of hiss with the JH16. Mid gain seems to have less hiss than low gain. Seriously.
Agree on the point that DX50 is slower sounding compared to others like studio v, j3, imod, ak100. It was most obvious to me when i played Metallica's Black album.