Hey everybody! So I recently bought a Sony Xbr-850E UHD 4k 65" TV. I then learned that my Sony HTS-360 receiver doesn't not play well with 4k! I am now forced to upgrade my unit because I cant get 5.1 Dolby digital and 4k throught he unit anymore. I am looking on upgrading to this receiver ( Sony 7.2 4k Av STRDH770);I am hoping my speakers and subwoofer will play nicely with it. The only concern is the subwoofer, if you look at the subwoofer head on the new receiver it is differant. I am learning about receivers. I am decently educated with Tvs but not so much receivers. Ill be honest I didnt see myself upgrading on this unit nor did I think I needed to. I kind of forgot so majority of my money was in the TV so now I am budget buying a receiver. That being said 199 for the new sony unit isnt a bad price! Feel free to help or throw out some opinions. Ill provide links below of the old/new receivers. PLEASE help! OLD: Sony HTS-S360 NEW: https://www.amazon.com/Sony-Channel-Theater-Receiver-STRDH770/dp/B01BV7SO8U Key parks: I want to use my old 5.1 speakers on this new unit as well as my subwoofer! I also want my 4K tv to work through it lol. Freaking tech these days! moving faster then I can keep up!