I would have to concur here based on my experience. Not that my equipment is the best by any stretch, but the Auditor and Audiolab 8200CD combination I use has really taken the 880s up a noticeable notch in sound quality and musical experience bang for the buck. I was considering investing in the T1, but opted to upgrade my amp and source and I'm sure doing so has provided me far more sound quality improvement than had I used my previous amp and source with a T1. Of course, that is speculation as I never did get to try the T1 in that set-up.
Hum , i don't know wich amp or source you used before , but on a cheaper setup (for amp at least) when i had DT-880-600 and T1 , T1 was clearly ahead , and i am not so sure that a DT-880-600 with a better system would sound much better than a T1 on a cheaper one .
Headphone is what matter most IMO .
Edited by HaVoC-28 - 8/16/12 at 8:41am