Lots of audio popping. I use the optical digital out to Logitech Z-680. I might try COAX. If I can figure out what adapter I need for COAX.
Sometimes they don't pop but I can't figure out what it is. I thought it was my xbox 360 wireless adapter but I moved that away and unplugged it. I thought it was my HP ex490 but it's not that either. I can't narrow down what's doing it. I also bought a Razer Nostromo. I can't imagine how that would cause audio popping.
I really thought this expensive board with all these isolated components and whatnot would not have this problem