SONY - HT RT5 - 5.1 Channel Soundbar with Rear Speakers

Hi, just wondering how the video works at this '4K HDCP2.2 pass through' ?
The problem I have is that when i connect PS4 Pro directly to 4k TV is shows at 2160p
But when i connect PS4 Pro through this soundbar HDMI then to TV, it only shows at 1080p

okay, so I looked at this on amazon, the price is currently (29/12/16) £489 :L my question is, do the "rear" speakers and sound bar have to be in same room? cause, I kind of wanna put a speaker in my room, a speaker in the kitchen, and a speaker in the living room, and how do I connect to it wirelessly? my aim is to use my phone to play Spotify in the rooms with the speaker, but I wanna control which speaker it plays through so I don't just have to have it playing through all speakers at same time, so if I'm just chilling in my room and I'm not home alone I can have just the one speaker playing... or if I'm cooking have just the kitchen speaker going, or if I'm in living room alone play music in just that room :L and if I'm home alone set it to play through all the speakers if I'm moving from room to room so I don't have to have my desktop sub woofer system super loud :L make sense? anyone able to help here??

Can I use a Sony 7.2 wireless receiver with this soundbar & woofer?

price?

I bought this soundbar 2 months ago and I really like it. The sound is amazing.

i dont quite get how the rear speakers or sub woofer are wireless when there is a wire coming out on both units

NO, concept is better than Vizio since each rear wireless speaker has its own dedicated power cord.  Unfortunately, the reviews of this system on Amazon have been horrible, and hasn't sold well at all, so I'll keep waiting for something worthwhile.

Which is better - this system or the Sonas?

Thanks for the clarifications about the rear speakers and the LACK of need to run serpentine cables - this is a steal deal for the convenience. Best Buy USA does not carry them - only Costco does.  thanks once again.

Vizio did this years ago. Cmon sony catch up!!!

This isn't even a review... You're just repeating the press notes from Sony. FFS.