I'd say that just turning them off would be fine. You are disconnecting the power either way. If you were to open up the chasis for any reason i'd definitely unplug them as you'll still have juice right up to the power supply. When you are switching interconnects I'd recommend shutting off all of your equipment, not just the specific components. All it takes is one miscue and you could have a huge amp and speaker damaging hum. Take the extra few seconds and turn everything off to protect your equipment.
2 responses Add your response