Hi folks, a fix for SOME of you, re AKG's IEM's. Mine didn't sound proper at all when I first connected the jack to the device, it was tinny, distant telephone sound. I noticed they had the three ringed TRRS fitting which usually sends my Hidizs AP100 potty, [has to be reset after trying TRRS types] I think TRRS types are for in line volume or phones, anyway when I pulled the jack out a little I got a reasonable sound out of one ear, so I connected them to my A&K and bingo, one good pair of IEM's. I have AKG 702s and AKG K1000 and a £100+ IEM' so I think I can speak of sound quality. try the IEM's on a different device or with an adaptor, right angled device or something maybe with two ringed TRS type fitting. I promise you these are good sounding IEM's, take the trouble to get the best out of them and you will be rewarded. I prefer them to my Shure IEM's now.