Like the SRH-440, the SRH-840 is a nearly ideal sound signature. Unlike the SRH-440, the SRH-840 is smoother, has better build quality, and greater comfort. This is a headphone I highly recommend. But may not fit large heads.
http://www.hifiheadphones.co.uk/for...77-shure-srh-840-stereo-headphone-review.html
http://www.hifiheadphones.co.uk/for...77-shure-srh-840-stereo-headphone-review.html