I want to set up my MacBook to do the following:
-Acquire input from a Scarlett 2i2 audio interface;
-Process the signal using Bias Amp or Amplitube (or some other softwares for Guitar);
-Send it to a mixer which is connected to power speakers;
I simply don't know which way I should connect the Scarlett 2i2 interface to send the processed signal to the mixer.