I think it also depends on your point of reference. Coming from a K701 and MS2i, I felt that my T1 had much deeper bass, much smoother treble and overall a much more coherent sound. But I still find the treble a bit hot for my tastes, at least with my solid-state amps.
I have both solid state and tube amp and strangely find that the T1 is less hot in the treble with the ss amp but lacks other benefits of the tube amp. I solved that problem with the use of some modest eq. Since I use my computer as my source it was a simple matter to make a slight eq adjustment to match the T1 to my tube amp. I use Electri-Q which is a free parametric eq that does not alter the sound at all except at those frequencies specified. I find a slight eq made a world of difference for me and makes the T1 entirely enjoyable for all it's strong points. I read many posts from owners with comments about slight frequency bumps that they wish were not there (HD800 owners also). It is such a simple matter to eq out those peaks that can make the T1 sing. We all hear a little differently and that is why small adjustments through eq can make your listening much more enjoyable. Now I expect to get flamed by the anti-eq forces.