They are pretty similar, but different. If you know what I mean. LOL. The bass on the DNA is good...great even...but on the PRO it's a little more laid back. Not nearly as bass oriented as the on-ear model. So it seems slightly thin overall compared to my Studio's and M100s, but it's seems to be getting a bit thicker as I listened to them over the last few hours. So maybe burn-in is a real thing? :) The voices are much more forward in the PRO model as well. They are front and center for sure.
Build quality on the PRO is better than the DNAs...mostly because it's a bigger headphone so it feels a bit more hefty. Ear pads are equally as supple and comfy. In fact more so since it's now over ear instead of on, so the pressure points I complained about in the beginning of this thread are non-existent on the new phone. Would have to take a break every hour or so with the originals, and I've had these PROs on for about 3 and they are perfecly comfy still. So right now...it's really a toss up on which headphone I'll keep. I really think the PRO is a fantastic headphone and it's a true upgrade if you ask me...over the standard DNA. Worth a shot if you like the sound on the original...quite similar with just slightly less bass.
Hope this helps a bit.
Edited by dbdynsty25 - 1/20/14 at 12:31am