I tried creating an Aggregate Device comprised of the H9000 and my headphones. The headphones work just fine in this setup, the H9000 is still silent. I can see it is sending signal (I have the Oscillator algorithm set up and can see the audio signal in the mixer), but can’t hear it. It looks like the Aggregate didn’t work, see attached, I don’t know what the red box means in Audio Midi Setup. Thanks, I was really hoping not to have to incorporate an interface into this setup.
