Looking at getting the beyerdynamic dt250 80 ohm version. Basically I have dt100's 400 ohm but have stuck the on ebay as I can't use email with my TV, my ipod etc. They need amp to drive them basically.. So I want the beyer sound, want to use them mostly for playing music via ipod, samsung galaxy s2, through tv, and also for mo playing my keyboard late at night and before gigs. I also like the size of the dt250, I just bought and am returning a set of sony mdr 7506 because I found them way too harsh and trebley, but do like the smaller size. Going to order today (uk) so any help would be greatly appreciated. Other considerations include: Sony mdr-1r Yamaha hph mt220 Or totally different but some shure se535 iem.