streamer player audio rs520 roseRS520 ROSE RS520 it's more than just a source device with a built in amplifier. It's a true all in one system, where every element has been expertly engineered to deliver performance that rivals multi unit systems. Even when paired with larger or more "difficult" speakers, it offers a more refined and elegant sound quality that is controlled and uniform throughout the frequency range. Solid foundations The four surfaces of the RS520's elegant housing