I have been using them intensively the last month while modifying the Fostex T50RP and have passed the 100 hours listening barrier with these headphones without noticing any changes in the sound. The only change was when I changed to the M50 pads, which make a terrific job with these headphones, both in sound quality and comfort. I didn't experience any change either when I reterminated them with a much higher quality plug from HICON. So that means that I am still an atheist of that burn in process/procedure, that seems like some kind of voodoo for me.
For a merely 1,4m long cable I'm not going to spend twice (or more) the price of the headphones in a 99,9999% silver wire. If we were talking about 3 kilometers of cable, maybe I would consider changing it. The only bad thing about the stock cable is that is a total pain to peel off the thick silicone covering, but it accepts well the tin solder once is peeled.
I really love these headphones as high quality and supercomfortable portables. Also I like the style of them, with the aluminium parts and the shiny black housing with the engraved silver letters.
Edited by SLaRe - 10/17/11 at 12:10pm