Theo, if you connect the pass through output to the pre/pro, how will you connect the rest of the system? The power amp has one set of input, and can't connect both the preamp and pre/pro to it at the same time.
How does processor loop work?
I'm not sure what is the concept behind tape loop and processor loop. I suppose they are conceptually similar. I understand the need for the bypass input for the processor that provides unity gain. But I am not sure how the processor loop is supposed to work. There is a set of input and corresponding output associated to tape loop and processor loop. How are you supposed to connect your tape / processor to them, and what exactly do they provide?