budget - I can wait and save for the best .
music preference - Electronic , Dance , Percussive ,house , Tribal house ,trance etc
design - Closed with Good isolation
amped or unamped - Would consider a portable amp if it improved quality more than say 5% .
I will be Listening to Dance music with these headphones and Dancing also. So Essentially the headphone must have quite a secure fit and be light weight .Isolation will be important for these headphones .
I listen at home with Audio technica ATH-M50 <<< these are slightly too Big to be true out and about headphones & if the music is so good it moves you ,they can have a tendency to wobble on the head slightly . Though I like how the ATH-M50e sound and would be happy if I found a more compact headphone that could match the ATH-M50 .
So far my research has led me to the Sennheiser HD25 1 ii . They look slightly more portable than the ATH-M50 and have a smaller cup size.
Any other suggestions ? or have I hit the nail on the head for my particular requirements with the ATH-M50 ?.
I don't think the HD25s have the bass emphasis for your kind of music. Unfortunately, the ES7s are discontinued. Have you considered IEMs?