Hello tdockweiler, since some time I have been reading your opinions about the DJ100 so together with the Grado SR80i they were the other headphones I really wanted to try after having sold my AKG 702 (too difficult to drive and too harsh for my taste), Sony MDR 7506 (I didn't like them at...

Thank you for your reply. It must be like you say indeed, even if still I find strange the KSC can produce the "chirp" even on low volume sometimes, while other times they can handle deep and powerful bass... Bye

Hi Jerg, I have the same "chirping" problem you described on both two pairs of KSC-75 just bought.   One I have broken :) trying to find out from where it was coming...the second pair I'm going to burn in night and day for some time...I'm really curious to see if it goes away.  ...