Today I finally resigned myself to the cold, hard fact: Aggregate devices in OS X (Mountain Lion, but also in Lion) are apparently not going to work for me. If I create an aggregate with both Rig Kontrol 3 and the built-in outlets, the audio gets seriously broken, either digitally degraded or dreadfully delayed. So, I have to use Rig Kontrol as Rig Kontrol wants to be used: as the primary input, with its headphone jack being the primary output.
But this is a problem in Metro, since I don't see a way to select the Rig Kontrol as the primary sound input. Can someone tell me what I'm missing, please?