These are the best settings I found when streaming from a Mac running Yosemite. I'm using OBS to stream and WavTap to grab the system audio.
OBS:
https://obsproject.com/download
WavTap Repo:
https://github.com/pje/WavTap
/ keithknittel
/ keithknittel
/ keithknittel
Snapchat: keithknittel