The Russound MCA-88 Digital multi-zone controller amplifier provides up to eight zones of distributed audio. Scalable to 48 zones, the MCA-88 provides numerous options to tailor every room in residential or light commercial distributed audio systems. A variety of input options have been engineered into the MCA-88 to connect up to 8 individual sources. AV source input options include up to 8 Analog, with up to 3 Digital (up to 3 coax, or 2 coax and 1 optical), including 1 paging and 1 Bluetooth extender connection. The Bluetooth connection allows the installation of the MCA-88 in an equipment rack while remotely locating the optional Russound BTC-1X Bluetooth receiver up to 300’ away in or near the room where the Bluetooth source will be located. Additionally, the BTC-1X improves audio quality through the high-performance aptX audio codec. An RNET link allows for metadata transmission, linking multiple MCA controllers and connection to all Russound RNET Smart Sources like the ST1 AM/FM external tuner.