I finally got my homemade 8-ch amp working correctly. The first version toasted my Mac mini audio output, but optical still works and usb-cards as well.

Now I've been trying to get output from e.g iTunes to go to Soundflower and then reading it with csound. Stereo works ok, but 6-ch doesn't work. When I start csound, there's a short burst coming from all the six speakers, but then it comes only from 2 speakers, the same speakers as outputting to 6-ch usb-card from iTunes. If I replace the input from inch to diskin2, I get output from all 6 speakers.

csound6 from git few weeks ago doesn't accept 2-ch input and 6-ch output. Portaudio gives error -9998 about channels, so I tried 64-ch Soundflower. Then csound6 crashes with a segmentation error. I had to install 5.19 from dmg to overwrite csound6. Is it possible to have both versions at the some time?

the orc is nothing fancy,

I haven't been able to use AULab stereo -> 5.1 either, I get no sound out but some pops from speakers when dragging the panner.

tnx