Hi there long time lurker 1St time poster. I'm looking for some advice. My current AVR is the yamaha rx373 which I'm happy with but will be sending to my pc in the spare room upstairs to replace my Cambridge audio a1 that's powering a pair of warfedale diamond 7.1 (will be replaced soon) I'm looking to purchase the Denon. My layout is only 5.1 but I like that the Denon supports 4k/60 on all hdmi outputs. Speakers are warfedale Vardus vr100Vardus centre Diamond 9Mx subwoofer I'm probably never going to use atmos due to lay out of the room (and the wife) I know my speakers aren't the best but I'm happy with them. I'm buying the Denon for its features mainly. Will dtsX be suited for any speaker placement? If I would replace any speaker it would be the rear 9's but that will come later. Other choice was the yamaha rx779 but the Denon is hard to turn down