2 Units available in excellent condition.  These are mainly designed around installs, though can certainly be used for standard PA.  These 4-channel amps offer 400 watts/channel (1600 watts total, thus the name C16:4) into both standard AND low voltage (70v) installs.  2 RU tall, 100-120 volts at the mains. Phoenix connectors on the inputs, screw terminals on the outputs. Nomadlink over Category cable (Cat5 or Cat6) for remote control. Each output can be switched between standard and low voltage as well, for a system that incorporates, for example, low voltage ceiling speakers on two channels and a pair of small PA speakers for special events on two others. Removed from a TV studio; for sale by a charitable group focused on mentoring and violence prevention in West Philadelphia. All equipment is in excellent condition and has been turned on and tested.