The WiiM Pro Plus Multiroom Streamer and Preamp with premium AKM DAC in Black is a top-of-the-line receiver combo that offers superior audio quality and versatility. With Dolby Atmos surround sound formats, this unit delivers immersive sound for an enhanced listening experience. It features various audio outputs including RCA, digital coaxial, and optical TOSLINK, along with compatibility with USB and airplay 2 for seamless streaming of music. The powerful 350W system is designed for multiple rooms and provides a high-quality audio output for a premium home audio setup.