Sonos does surround audio with their sound bars, and you can connect them with Ethernet. There's also a hack to take the IKEA Sonos bookshelf speakers and conne

Sonos does surround audio with their sound bars, and you can connect them with Ethernet. There's also a hack to take the IKEA Sonos bookshelf speakers and connect them to different speakers, eg https://makezine.com/article/maker-news/hacking-the-sonos-ikea-symfonisk-into-a-high-quality-speaker-amp/ https://makezine.com/article/maker-news/hacking-the-sonos-ik...