I'm looking to sample audio directly from my back into the machine plus hardware. I have a splitter running from the line in 1 and 2 in the back of the machine with the other end running into the 3.5mm jack on the back of my Mac Studio. I have my headphones running via a splitter from into L & R line out jacks on the back of the machine for monitoring sound. I'm lost now on the preferences within machine, the input output sound settings on the Mac and the sampling settings on the machine plus. Please help. thank you