Wireless Sound Bar w/Voice Control
The Sonos system overall is an incredibly simple way of putting good sound wherever you want it, without a lot of wiring and configuring.
The devices themselves are good at blending into their environment, and the app interface allows for almost any music service you can imagine to pump through the speakers, all together or individually. (We even use a Play 5–which accepts an aux input–to take our record player sound and send it throughout the house.)
It works great for your video setup as well. The Sonos Beam in particular has all the hookups you need to pair with a TV or AppleTV, can be wall mounted (or ceiling mounted with some extra ingenuity) and even adds Alexa functionality to the room it's in. You can then easily enhance the sound as desired by adding a subwoofer and additional speakers around the room.