I have got some I think they are brilliant I have got an array of IEM type headphones Soundmagic, RHA . Shure and to be honest these knock the socks off all of them and I am suprised that nobody ever mentions them. I did ask Dale about them and as he said thet he would have to buy them to do a review hence he has not done one I think they are really good when I compare them to my RHA 750s there is no comparison the Beyer come out on top.