Spent a little bit of time with the DT235. They are quite comfortable indeed. There sound seems to be polar opposite from the typical Beyer sound. Well, to be fair, I only have experience with the DT880. They were so bright I had to sell them. But the 235 is WAY on the other end. More of a dark signature. Highs don't peak with a crispness. Bass in these little babies is quite strong. Not as tight and controlled as the HD25, but delivers more boom. More like the bass of the ES7. But also not quite as detailed.
When I first started listening, I was thinking these sounded more along the lines of the PortaPro, but after further testing, I think they are darker than the PortaPro. These might actually be closer to the HD238. I like these better than the 238 also. And picking up a dinged up box for 39.00 from headroom is a tremendous value, imo.
The thing that intrigues me about the 235 is the detail. Normally with a darker headphone you don't get into too much detail (at least not at low to normal volumes), but these deliver surprisingly detailed nuances for a darker overtone.
I do like these headphones. They are not as upfront as I typically like. Cans like the ES7 and the HD25-1ii are more my typical speed. But the 235 has a spot in my collection long term I think. I like the bass a lot. I get in the mood on occasion for bass that thumps with a little swagger and looseness. Hence the whole reason I got my Edition 8. 2 subwoofers sitting on my ears!! Obviously the 235 and Edition 8 aren't in the same conversation, but you get the idea.
Oh ya, and did anyone mention how comfortable the 235 is?