Classic Series Public Address Amplifiers. C10 & C20 have 10W and 20W output power, respectively. Transformer isolated 4Ω, 8Ω, 16Ω, 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 600Ω, telephone paging