Current basement setup I have a 5.1.4 but still using my Yamaha RX A770 which is only a 7.2 receiver. I am looking to upgrade because my current receiver doesn’t allow me to hook up the .4 atmos because not enough channel outputs. I would love to get the Yamaha RX A6A but it is quite pricey. I was also looking at the RX A2070 and RX A2080 yamaha receivers but these are older models are these outdated? Looking for any other recomendations.