Please, I need help !!! Recently updated to Apples new OS X El Capitan . . . Ever since I have, I have a problem with getting sound through my headphones - Grado 325e I'm running a Magni/Modi 2 Über stack, through a USB connection.. When I'm in sound preferences, I see the Schist Stack there...

Hello all.   Yes as you can see, I'm new around here. While I have been looking around for the last 2 weeks, it can become quite overwhelming and gets confusing, especially, when some such threads, are at 500+ pages to 1700+.   Anyways, to the nitty, gritty of it all.   I have recently...