A:AnswerZone B can be played at the same time as the the Main speakers it is not meant to be a pre out for front. It's functions more like a speaker B setup.
A:AnswerYes the receiver has blue tooth and can pair to your phone or tablet it can not pair to speakers because the it does not have a blue tooth transmitter.
The receiver can not connect wirelessly to Sonos speakers.
A:AnswerWhile the receiver does not do 8k an 4k 120hz it will connect to the PS5 and play video and audio. There are no restrictions on which port you connect it to either.
A:AnswerNo the receiver is IR and does require line of site to use the remote. But you can use an IR extender if you want to put the receiver in a cabinet or a media closet.
A:AnswerZone B on my unit works. Connect the RF transmitter to the receiver output for zone B and select zone B. You can select zone B by its self or both zone A and B.
A:AnswerI thought the same thing. I was ready to re-box when my ear passed the center channel and I heard a faint voice. You can't hear this receiver until about 50 DB or more. I was at 60-65 for initial set up. Sounds great. TURN IT UP!