Lurk650
Headphoneus Supremus
BA in a full size? WhatIt sounds like the HD660S is a much improved HD700. Speaking of another headphone, I just got the Final Audio Design Sonorous IV as a closed back upgrade from my Focal Listen. Oh my, what an upgrade it is indeed. This is an amazing headphone, and I am really enjoying it. The imaging, soundstage, detail retrieval, and musicality of this headphone are just fantastic. I have about 6 hours use on it so far. It it already burning in nicely. I would imagine this one will be fully burned in after 20 hours or so.