May seem like a stupid question, but, I am getting my new H/K AVR 520 shortly and am replacing my AVR 500. I had heard that some say it is good to use (2) amps to drive the speakers. Not so much LF & HF but for power sake. I.e. drive the surrounds & woofer with one and the mains and center with the other. I would use, of course, the pre-amp section in the 520.
Is this doable and am I gaining anything? If doable then how?