I think finding another B&K receiver is a good option since you were pleased with your 505. Another choice for a very musical AVR is NAD. I own and older(2004) non HDMI NAD T773 AVR that I am only using in a 2-channel rig and am more than pleased with the sound quality. A beast of a receiver(52lbs) with plenty of power reserves on tap.
What is your budget for an AVR?
Bill
What is your budget for an AVR?
Bill