There is no "Rear" Channel(s) in a 5.1 AVR:
5.1 - Left/Right/Center/Left Sur./Right Sur. and Sub (.1)

6.1 - Left/Right/Center/Left Sur./Right Sur./Rear Cent/ Sub

7.1 - Left/Right/Center/Left Sur./Right Sur./Left Rear/Right Rear/Sub

So a 5.1 receiver does not have a channel for the "Rear" location, whether it be 6.1 or 7.1.


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85