I recently got HIFImeDIY Sabre DAC to use it with Galaxy Note 2.
First time, my set up was like this.
Galaxy Note 2 (Using Neutron player or stock player) -> USB OTG cable -> Sabre DAC -> Headphone.
It worked without any problem.
Few days later, I removed the launcher that I was using, and returned to stock UI (Touch wiz).
I tried to listen to music with the dac, and did not work.
Music will just fast forwarding without any sound.
I was trying to find the problem for hours. (Try it with other otg cable, different app, connected dac to the desktop, rooted the phone etc etc)
While I was searching about that problem, found someones post regarding the same problem (but with fiio e7, not sabre dac).
I tried to think what has changed....and I know it doesn't make sense...but I remembered I removed the launcher.
So I re installed the launcher that I was using (Launcher 8: https://play.google.com/store/apps/details?id=com.lx.launcher8&hl=en_GB).
It is working again.
It might or might not work on your phone.
But why not try....