You are right, and after tons of reading, ill probably go for HD 598. Ive tested today HD 518 and its sound was highly noticeable compared to my current headphones, even in youtube (192kbps) So that with HD 598 soundstage... :3
Do you think that will be a great difference between 518 and 598 in low quality audio (youtube@192kbps) ? or the difference will be only in uncompressed audio?
Thanks you so much for your support!