A:AnswerNo, but it will accept a Samsung rear speaker kit, providing a virtual 5.1 system. These would be wired to the wireless subwoofer, would probably require placement of the subwoofer to the rear of the room due to speaker wire length. I don't remember if the speaker wires have proprietary connectors or can accommodate standard speaker wire. Also, don't know if non-Samsung rear speakers would be compatible, but I doubt it.
A:AnswerYes, you absolutely can! I had my laptop connected via Bluetooth to my Echo and Echo Show, and set the sound bar as the speaker option for my Fire TV Cube so that all would play at once when using a Bluetooth device.
A:AnswerHi TomsMom! Yes, the HW-A650 can be wall mounted and includes the mounting hardware in the box eliminating the need for an additional purchase.
^Tim
A:AnswerHi TOM! This depends on which TV you are pairing the soundbar with. If you have a 2021 Samsung UHD TV, you will have no issue with the soundbar blocking any part of the TV, even with the soundbar sitting in front.
^Tim
A:AnswerNope You can use volume control from the TV remote, soundbarr remote or Apple TV 4K remote
My soundbar turns on/off with my TV automatically
Even when the APPLE TV 4k turns off after long hours of inactivity while playing on xbox, the volume control on the soundbar can still be controlled with the Apple TV 4K remote