I didn't exaggerate the 10 dB drop on Rin's graph. it's there, grab a ruler and measure it. It's closer to 9 (after careful observation), sorry originally estimated it by eyesight (I did a quick visual estimate; reason why I estimated to the nearest 5). Tyll's remains around 5 dB in the raw.
What you stated about the sub-bass response (and even treble is plausible, I'll by it). The resistence Rin used were filters right (like the red one he stated that attenuates the hgihs and lows a bit)? It wouldn't explain the midrange drop (5 dB difference between Tyll and Rin @ 1 kHz). As well as the midbass hump that Rin shows.
We'll wait for more impressions to come in, but we have 2 users who find Tyll's graph more representative of what they hear in contrast to Rin's.
I still want to ask you Inks, can you confirm Rin's findings in the subjective realm? EG, do you own/have heard the UE 900?
EDIT: BTW, my main gripe with Rin's graph is the 500 Hz - 2.5 kHz region. I feel that that area is exaggerated more than it actually is on the graph. Tyll's matches up with my subjective findings on many more levels. I can care less about the 1 dB deviation in bass from Tyll's graph to Rin's. They are both concave down and begin dropping approximately at the same area. Both graphs show the same general shape of the signature, but Rin's graph shows the drop in the mids a little more extreme than described.
Hardly , Rip just mentions bass, 2 biased samples hardly prove anything, . The biggest drop in Rins raw is at 5.5k, 5db at most.and I'm talking about source resistance, Tylls amp will make that drop more gradual from 2.5k and less bass overall.
Edited by Inks - 10/22/12 at 3:44pm