Hey DT48 fans, I have question. I've been thinking about buying high-end headphones and the DT48E is one of those on my list of cans to check out, but I've been really bothered by the correlations between the published frequency response curves. I see the DT48A's Beyer hand-drawn frequency response picture tossed around a lot, but it doesn't jive with the the reviews I see or these graphs.
It seems like the actual-ear response from these measurements are very similar to the above Russian measurements with the significant drop-off of bass at 300hz. Furthermore, the dummy-head response looks almost exactly like the Inner Fidelity Tyll graphs that you all seem to blame on coming from an improper source, like a Macbook Air. With these correlations, though, I just can't imagine that a source like a Macbook would color the response so much from neutrality.
At this point, I find it really hard to believe that the DT48s have anything but a significantly colored frequency response, both at the dummy head and at the actual ear with iffy treble extension and rolled off bass. That doesn't even look like accurate bass in any of these graphs, they look significantly colored by lack of bass and a heavy emphasis on mids, which would definitely make sense in a field recording situation like with Nagios. I'm not sure if it is necessarily because they are neutral that Nagios likes them, it seems to me like it might be the clarity and speed in the mids, rather then neutrality.
While googling for information about the DT48e, I found your Facebook page but hecking out your DT48 Facebook page didn't help much either, because it all just seemed like you were attacking Inner Fidelity and Head-Fi and playing the victim card, rather than giving out any helpful information about the DT48... I was able to get a lot of good information from the B&H Photo reviews and Dalethorn's site, though, but they seemed to really contradict a lot of the other evidence I had. I was just wondering if you guys had any personal experiences to refute these, because I'm really skeptical about buying a DT48e right now.
I hope I don't sound attacking or anything, I'm just somewhat frustrated by the lack of coherency in the information I'm finding.