This is exactly what I am looking for. I have just got my N7, isn't even rooted yet. But I am going to try this out in a few days, and test it with the FIIO E17, which is why I bought the N7.
It will take a few days before I have access to a windows computer for the rooting, but then I will come back with my experience of it.
Phone: LG G2
ROM: Stock, rooted, CWM 220.127.116.11
Tablet: Nexus 7
rooted, with Faux kernel