I have a fully hardwired multi-room and outdoor setup (Klipsch speakers) using the Sonos Connect AMPs. They support this path pretty well. You can use Sonos Por

I have a fully hardwired multi-room and outdoor setup (Klipsch speakers) using the Sonos Connect AMPs. They support this path pretty well. You can use Sonos Port with your existing amp as well, but it's a little overpriced.