Multi-zone controller amplifier C3 is a 6 zone/6 source controller amplifier. 6 zones of audio with adjustable bass/treble/loudness/balance with analog amplifiers providing 20 W/channel to all 6 zones, 6 source inputs and fixed or variable line outputs for zones 1 and 2, routed IR, built-in IR learning and a pre-programmed IR library, paging (optional source 6) and doorbell muting. Internal AM/FM Tuner with RDS (optional source 1). Source linking and zone linking. Front USB and rear RS-232 serial ports, rear Ethernet port, colour-coded detachable 14 gauge snap connectors, 12 V and home theatre triggers. AM and FM antennas included. Controllers are rack-mount 2-unit high and Low standby power consumption of less than 1 W on selected models. Rack ears included.