thanks for the info, is much appreciated. think i'll stick with mdr-nc022s, when they give up the ghost i'll invest in the ex90s unless there's something better for the money in the future. personally i don't find the 'hissing problem' too much of a problem, this is the first portable audio device that i regularly use on half volume as opposed to full with no complaints. the fact that earphones are such an important issue probably sums up how good the sound reproduction is on the new sony range, personally i'm more than impressed with the package in the box for the price, to think i was considering an ipod nano