Here's the Elear - for my purposes, the best sound I've heard, but your mileage may vary according to your treble preferences and which amp you use. Due to the large impedance spike around 40-50 hz, the power demand could weaken the deep bass somewhat, if your amp isn't up to it. The $1000 price is a lot, but the build quality and sound quality make it a keeper for me.
http://www.hifiheadphones.co.uk/com...d-ear-open-back-stereo-headphone-review.4415/
http://www.hifiheadphones.co.uk/com...d-ear-open-back-stereo-headphone-review.4415/