That’s why I am only ALLOWED headphones 
SWMBO 
Seriously though when we re-modelled the house when I had 5.1 surround speakers, we were replacing floor tiles so we ran 22mm conduit into channels in the concrete floor and terminated in 2 banana plug panels on the walls. We even ran conduit to the family room to use the AV amps second speaker channel.
If you are doing that scale of building its the right thing to do even if you don’t need it !! The wires are still there even though the amp is long gone.
South African houses rarely have studding walls so everything is concrete , wonderful. My LAN cable goes through 2 walls and across a concrete flat roof with massive UV protection.