Hi folks, First post by a newbie... be kind to me plz My Cambridge 540 receiver broke down so I'm on the lookout for a new one and I'm just a little lost in the tech swamp. Would very much appreciate some educated input, as I've grown grey hair from trying to learn everything through research. I'm a 80% tv/film and 20% music guy. I have B&W CM series (small CM1s), with CM sub and LM surround speakers in a 5.1 system currently. Possibly looking at upgrading to 7.1. TV is a Samsung F8005 55" (ordered but not received yet) and I have and old cambridge DVD89 that needs to go in favor of a BD-player. I currently don't run a NAS but I run a two zone Sonos system. I have my eyes on Yammy RX-v775 or a730, Sony 1040, Onkyo 626, Denon X2000 and possibly Marantz SR5008 as I heard Marantz and B&W blend well together (I myself have no idea and yes, I know I need to go and listen before I buy . I would love to hear any other recommendations you have with the B&W CM1 series and why. So to the list of questions 1. Since I run Sonos and at least intended to continue using Sonos for expanding multiroom music in our new bigger house, I shouldn't care about either Spotify or Airplay functionality in choosing a receiver? (I feed Sonos now to the receiver and use a Play5 in another living room and sync ITunes library and use Spotify). Would I benefit/gain in any way buy using Spotify/Airplay from the receiver itself? 2. As a function of the above, nor should I care about Zone 2/3 funtionality and adherent app support (Sony seems to be lacking here) unless I want a better sound experience than my Sonos system gives me outside of my 5.1 cinema room? 3. Given Sonos, should I care about Wifi at all in a receiver? (office/computer/router is on 2nd floor quite far from receiver so I don't expect to use ethernet). The receiver will only play audio files right?, and that would be covered by Sonos. Secondly, if I want mkv or other video formats played I will need to invest in a NAS or mediaserver and stream through a DLNA TV (like the one I have just bought) or a BD-player? I saw that many BD-players have Wi-Fi so I'm assuming that means I can pick up all video files straight from my hard drive without DLNA and mediaservers etc? 4. 4k upscaling and pass through seem like a sales pitch to me at first glance? I don't see this tech being available on TVs for some years to come at an average joe price point? I think all the above mentioned receivers have this functionality so it's a non-issue really. So with the above reasoning maybe the Wifi functionality in Onkyo and Sony is really not important to me in this case and I should only go for the audio experience I'm looking for? Sorry for the rambling but I hope you can make me a little more comfortable before pulling the trigger. Thanks!