Sonos Connect:Amp &ndash; Wireless Home Audio Amplifier for Streaming Music, Amazon certified and works with Alexa. Upgrade your favorite stand alone speakers with amplified streaming music both indoors or outside More sonic punch. Built-in amplifier powers large or small speakers. 55 W per channel at 8 Ohms. RCA line-in for connecting a range of playback sources. Subwoofer line-out. Control wired speakers from anywhere in your home with a mobile device such as your smart phone. Connect to patio or poolside speakers for outdoor listening entertainment. Wirelessly stream all your favorite music services like Amazon Music, Pandora, Apple Music, and Spotify. Connect to any Amazon Echo or Alexa-enabled device, then just ask for the music you love.