I decided to bite the bullet and get a Sonos system. My kitchen and living room share a wide doorway at one end, but aren’t really connected together enough to call it an “open floor plan”. So using just the speakers hooked up to my TV to listen to music in the kitchen didn’t work out very well because you’d have to crank it louder than was comfortable. I hooked up some old computer speakers to Audio Engine’s A3 audio transmitter, which has a transmitter that you hook up to an audio output (such as the tape output on my receiver) and the receiver that you hook up to some other speakers or something. It’s a great product and super simple to use.