First impressions of the Zen 2.0:
I do not have the original Zens to directly compare.
Build quality of the housing and cable is a lot more satisfying on the 2.0. I also like the right angle jack that they've implemented but I think I would have liked to see the chin slider again though it isn't a huge deal.
Onto sound impressions (Donut Foams):
Sounds a lot more relaxed than the original Zen. This is good for those "pop them in and chill" moments, but lack a bit of energy and overall clarity when it comes to more energetic genres of music say like Punk Rock.
The bass seems to have more impact than the original Zens, reminds me a bit of the HD600 in overall signature, but a touch less clear sounding. Vocals sound a bit too pushed back and muffled for my liking. Say maybe like the HD600 but a 4 or 5 db decrease in the upper vocals. Treble seems more polite than the original Zens, but remains clear and non-metallic sounding.
All in all, I think I prefer the more energetic original Zen in overall sound signature but these aren't bad either.
Take my impressions with a grain of salt: there's a reason why I only did one review and not anymore than that and that reason is because I'm not exactly good at nailing down what I'm hearing. I also have not burned them in (unless if Lee does that beforehand).
Running them out of the ifi Nano iDSD
I'm planning on cutting the earhooks or however it was done. I didn't read up much about them but are they like a night and day difference between the foams?