Oh, and this adaptor abolishes any possible sibilance issues there might be with the T1.
@ ZenErik, I just listened to that song you posted. Without the adaptor, there is sibilance with the T1, although I would not say it is unlistenable. I've heard worse. But with the 120Ω adaptor, there is no sibilance. At all.
I strongly recommend to try this rather simple "mod" to anyone who has issues with harsh treble and/or sibilance with the T1. Unless you already have an amp with a high output impendance, that is!
Thanks for the input. Perhaps the adapter smooths out the treble, but I hear the sibilance on all of my headphones and speakers. Not just the T1. Our hearing must be quite a bit different. :)
Make no mistake about it. I'm not saying the T1 is a sibilant headphone. Just that something in my hearing changed so that I pick out sibilance very quickly when I did not notice it before. As mentioned earlier, my critical listening has likely improved for better or worse, haha. I just listened to song I posted via laptop speakers and heard the same issues with the recording. Doesn't matter what I am using. I just seemed to first develop this keen ear to sibilance within my first hour or so with the T1.
Edited by ZenErik - 1/15/12 at 4:38am