I'm dreading the day my T1's die. They are just, sublime. Bought and/or tested the LCD2, LCD3, HD800, K702, T1v2 and more, and ultimately my original, slightly worn, very old, overly used pair of T1's (v1) are still by far my fave pair of cans. I really want to get a frequency graph of them recorded somewhere, so I can look for this curve if ever I need to buy a replacement. I feel like the pair I have are a particular beautiful copy, because as I've said so many times, they have none of that harshness up top that other T1's have been criticised for. Mine are sweet and smooth up top, smoother even than my Hd800's, or the T1v2's I've now returned. To have exactly what mine sound like, with a touch of added sub bass presence and quantity (which I currently EQ in), and you pretty much have perfection.
I'm going to try and grab a pair of the new HD800S's just so I can compare. Who knows, maybe they will be the cans that finally top my cherished T1's! The HD800's certainly offer one thing that the T1's I have can't compete with, and that's the soundstage. In this respect the HD800's are simply unmatched, but in overall musical enjoyment? I pick my T1's above all the others in my collection most times out of ten.