AudioControl’s Rialto 400™ is a breakthrough, compact high power audiophile amplifier and high performance digital to analog converter (DAC) in one. The Rialto 400 dramatically improves the audio quality and performance of all local audio zones, and acts as the perfect companion to digital audio systems like SONOS™. Powerful, audiophile quality, AccuBASS, multiple inputs and outputs all housed in a small compact chassis made in the USA by AudioControl