One more, I recently bought Soundmagic HP100, incredible clarity and transparency for a closed headphones, really nice for classical music. It is a closed headphones that has the sound signature of an open headphones. Detail and clarity is excellent. Bass is also good, extended very low, clean and tight, although the level maybe a tad beyond what I would like to hear. But I would say the bass is good quality and sufficient, not anemic. Very neutral tonal balance, lean to natural-bright, but the kind with high quality treble that sounds airy and transparent, not the type that harsh and metallic. Highly recommended for classical.
One drawback, not very comfortable for me, the pad is not thick enough for my ears. So I usually take it off every 30 mins. But can wear longer in cool environment.
http://www.amazon.com/SoundMAGIC-HP100-Premium-Folding-Headphones/dp/B0086YJ86Y/ref=sr_1_1?ie=UTF8&qid=1385977038&sr=8-1&keywords=soundmagic+hp100