Sennheiser HD-25-1 II
Not horrible for what it is.
Compared to M-80:
The HD-25 does have a U-curve. This was obvious during listening. I found the M-80 a better listen despite the midrange bump. (I would rather have a midrange bump with a treble roll-off than an U-curved FR.) Honestly I couldn't say the HD-25 sounded faster. Maybe a little clearer. I just couldn't get over its tonal signature.
Purrin, your tools and analysis are beautiful and are representative of our curves as well vs the HD25 (a great headphone we admire).
Trust me, we DO and are tempted to do the exact same analysis and much more as soon as we get new headphones (we use 8 of each competitors, 3 labs, and 50+ subjective reviewers so we can test durability and variances in their quality control and also check for statistical/calibration/lab sampling errors). To be honest, today I got new prototypes and many new headphones (including DT1350s) and I threw them in our lab vs subjectively listened first as I should have done. I do the same with all my source songs in logic, serato, etc immediately so I know how to edit/play them when I dj and produce/remix. I should always do the opposite, as I should try to not let the curves and lab analysis bias my ears as #1. BUT...
As many head-fiers and you know, the "fit is the sound". The fitting plays such an important role on the final sound. The fit+inidividual ear shape+hearing loss is like the "room", the driver is the "speaker" when compared to traditional audio. They must work together perfectly for the best experience, equally.
So, we have tried to now also add to our testing the effect of the physical user's ear canal+fittings+hearing loss with some very special methods, we can discuss how to measure this if you want! And of course we can always brainstorm new ways to better measure the "fit effect".
Look at the headphones boost in the highs and how songs are mastered (I am a producer), it is VERY VERY dangerous to spike 8kHz+ in the headphone itself as every song is different and people have different volume listening levels, genres. It is best to EQ if you need to or have hearing loss, but don't hurt the kids and younger users, I started V-MODA when I was in my mid 20s w perfect hearing and this is why we never artificially boosted our highs.
Edited by valkolton - 10/1/11 at 3:21am