That’s what I did with my egg fryer Marantz SR5011 (long since sold it). I ran two McIntosh MC50’s off of the L & R Pre-Out’s and used the AVR’s “HDAM” Amps for the Center/Surrounds. Never liked it’s “Pure Audio” setting and always had to revert to the Audyssey EQ’d curve to get decent sound out of it.
Here’s what I did last year prior to getting the Onkyo A/V Preamp :