So I've been complaining about the sound of Saturday Night Live. But I can't complain about the Bon Iver mix.
Now here's a thing -- they're clearly using in-ear monitors and that always cleans up the stage sound. And I don't know what the double microphone on voice thing is about. He seems to favor the one to his right. Maybe that's a way to keep him just off of the left one.
But the mix is good. We can hear all the instruments, which considering the instrumentation is fairly tricky. I'm not exactly sure where the bass is coming from. Maybe the camera right drummer is playing a bass keyboard?