Sorry, owned the DT880/600s alongside the T1s (still own them) and when both are properly powered, the DT880s are the brighter/thinner/more brittle sounding headphone. I always considered the DT880s brighter than the HD800s as well (I found the T1s warmer than both). What amp / source are you feeding them?
^^ What he said.
Edited by MacedonianHero - 6/30/12 at 6:48pm