Setup:
Audio setup step by step
Hardware setup:

example
Audio driver setup

1. open DSP;
2. choose the “Audio driver” (eg. RME-FF800 );
3. choose “soundflower” for input ( or configure “JackOSX”);
4. open “I/O Mapping –> verify that you have 16-channel inputs and 16-channels outputs;
5. choose vector & buffer size;
6. choose your sampling rate