This review is based in my experience of almost 6 months with them, running 24/96 Flacs > Foobar2K > Wasapi > Asus Realtek ALC1150 + 4580 Op-amp > HD668B I decided to reboot my interest in audio gear and I was looking for affordable cans that could show me what I've been missing all this time, whitout breaking the bank and with enough SQ to make the next steps really worth it.   After much reading around it was clear that the best option was the HD668B's, lucky me I found a local dealer of Superlux so I didn't have to wait for them, went to the...