The CAM6.6T features (6) six zones (40 Watts per zone), Internal AM/FM Tuner, (5/6) Source Inputs, (2) Fixed or Variable line outputs, routed IR, adjustable bass/treble/loudness/balance, Built-in IR Learner and Pre-programmed IR library, muting. Rear RS232 port, color-coded detachable 14-guage snap connectors, rack-mount 2-unit high. (6) IR Emitters, 12 Volt & H.T. Triggers. Controller ONLY, No keypads. Rack ears and AM/FM antennas included.