The MartinLogan Motion Foundation B1 x WiiM Amp Bundle at its core is an easy to set up Stereo system, but with the latest streaming technologies it opens the door to so much more. Offering support for popular streaming technologies like AirPlay 2, Google Cast, Roon, Bluetooth and more, the Wiim Amp offers unprecedented flexibility to deliver your favorite music as hassle free as possible. With multi-room support and Spotify Connect, iHeartRadio, Tidal Connect, Amazon Music, Qobuz, Napster, Pandora, TuneIn, Deezer, and more, it has never been easier to bring your favorite music to life. WiiM Amp also features HDMI ARC, Digital Optical, and Stereo RCA inputs making it easy to plug in your own sources, including a TV, making it ideal for creating a Stereo Home Theater without hassle. All of this functionality is paired with the renowned performance of the MartinLogan Motion Foundation B1 speakers for a full, clear sound from all of your favorite content. Experience crystal clear dialogue and vocals as well as bass performance unexpected for their compact size. The subwoofer output of the WiiM Amp also makes it easy to add a subwoofer for even more dynamic and visceral impact.