Hey so, I've narrowed down my search a bit but I was wondering if the Grado gw100x still have bad noise bleed like the gw100? It's okay if it has some noise bleed but I really was hoping to be able to use these headphones in an environment like a library. Any advice is appreciated!

Hi all, this is my first proper post on Head-Fi, and I already feel like I may be missing something, because it seems that there should be a whole lot more discussion on this topic. Specifically, are there Bluetooth wireless headphones that sound as good in passive mode - that is, with no power...