C10 has a 10W output • Transformer isolated 4©, 8©, 16©, 25V and 70V output taps • Rear panel auxiliary receptacle • One dedicated MIC 1 input — Lo-Z balanced • One switchable MIC 2/Aux 1 input • Contact muting of Aux input • Transformer-isolated 600© telephone paging input • Separate rear panel-mounted TEL volume control • Voice activated muting of Aux input by Tel input • Variable trigger threshold for voice activation • Optional wall mount kit • Optional impedance matching transformer 10k/600© • UL and CSA listed