Covering nearly every aspect of the home audio experience, the AV 10 15.4-Channel Network Preamplifier from Marantz delivers reference-quality audio, whether you're enjoying 2-channel stereo from a turntable, home theater surround sound, or whole-home, multiroom music using HEOS built-in. Many sound enhancements are engineered within the AV 10 to ensure a clean, crisp, and high-resolution signal, such as its copper-plated chassis, toroidal power transformer, HDAM module, and more. Pure and rich sound that can be supplied by a host of wired components, your local network, or wireless via Wi-Fi and Bluetooth streaming.