Bogen's Classic Series PA Amplifiers provide a mixture of microphones, telephone, and auxiliary music input sources. The Classic Series Amps provide maximum flexability with output screw terminals  for 4-ohm (direct) and 8-ohm, 16-ohm, 25V and 70V (transformer-coupled) speaker systems. Output jacks let you connect to a tape recorder or an additional booster amplifier, or feed a 600-ohm telephone line when an accessory transformer (Model WMT1A) is used.  Bogen Classic series paging amplifiers are designed for years of uniteruppted service and economy. Need help with a paging system design?