Product is not sold where i live(Norway) , so there is a lack of information avaliable on this Hd58 product. But wondering about software download for this 58. On the website to sennheiser i searched for the hd 58, but nothing showed up in the search. Do you know if there i a software/firmware avaliable for this? was thinking of the equalizer setting, is it only done in windows? or is it something i can download?