As you see I'm a DT990 owner. I find it quite satisfactory for electronic and some classical, but not with others.
Particularly, I feel that DT990 plays really well with Shostakovitch and Prokofiev, but not with Mahler and Brahms (and with Bruckner it's like halfway towards perfection)--their different music style just require different sound style!
Therefore I wonder if the famous Sennheiser sound would do me good. I have tried out an HD600 from my friend for a short time, but it was on my poor system back then, and I can really tell nothing of it. Would you have any comments on my thoughts or suggestions to make?