I currently own AKG 242 HD and Audio Technica M50 headphones but mostly use the 242 HD. I want to upgrade to a real high-end headphone and need help with my choice. I narrowed down my options to three headphones as the title of this thread states. Which one should I go for? I mostly listen to jazz in any form, instrumental and blues. I've heard good things about all three of these headphones but haven't had a chance to audition them myself. I really like the sound signature of the 242 HD. Will an upgrade to K701 make a whole lot of difference? My equipment as for now is a Cowon J3 with Fiio e5 amp (soon to receive Fiio e11).
Thanks for all the feedback in advance...