I'm hoping someone more knowledgeable about amps than I am can 'splain to me what an effects loop is for and how to use it. My Pignose 60 has an effects loop, but the manual, such as it is, doesn't tell me anything about it. I'm surmising that if I had an effects pedal I would connect the input and output of same to the effects loop in/out jacks, but rather than try that and cause sparks, I figured I'd ask here.