I buy a pair of Fidelio M1 in Amazon for sale (70% discount) after reading some disagriment reviews. I just own some good headphones (hd880 600ohm hd990 pro 250ohm, grado sr60, yuin pk1-2-3, rockit sound r50 , and others) and I use ipod 5 amped with fiio 12 and fron 1 month now the wonderful Fiio X3. For 69€ M1 is a great purchase, the leather arc with the well done pads. This ones are very confortable too. They are in memory foam and this simply idea is so brillant, they fit perfectly to your ear end allow perfect solid end firmy bass, in addition to a superior isolation. But THE SOUND QUALITY ..... The do not convince me, it seems like a veil between the notes and your ears.... Ok, I try a burning night, but not a very tangible improvement at all. But looking at the beatiful object I didn't andestand why tha strange cable. A short cable out from the left earpad ending with the classic 3,5 mm jack and a female - male 1 mt cable with the mic end remote control for iphone. I don't need a pair of high end headphone for calls! So I try to connect directly the short cable(7cm ca.) to my dac.........SURPRISE ANOTHER THING I use a simple 1 mt cord femal- male jack instead of philips one and I can tell You this is undoubtedly my best can! This 2,5 € cable transform it in another wonderfully sounding headphone. More incisive mids, deeper but not pushy bass, and finally revealing highs. I can hear things hidden ( or probably not higlighted) by my masterpeaces. I just orderd a better solution cable, but the cheap solution is good enough. If You have a Fidelio M1 why don't make a try. It is for free! Now I really enjoy my purchase.