Bogen TPU15A Telephone Paging Amplifier - 15 WattsThe Bogen Model TPU15A is a unique 15 watt, wallmounting amplifier, specifically designed for telephone paging applications. This compact unit provides voice activated muting of music when paging, completely eliminating the need for manual activation of switches and the use of external relays. The page channel features automatic output leveling (ALC) as channel input varies, which is particularly important in telephone paging applications, where