The PRS48 from Bogen is a 48V DC 100mA Power Supply ideal for telephone paging access devices.
The Comprehensive PT-101R is an RF Line amplifier; it accepts an RF signal on an "F" connector and amplifies the signal for long cable runs. It features a wide bandwidth and low noise capabilities.
The GA2 from Bogen is a compact general purpose amplifier ideal for "music on hold" applications. Only 50mV is needed for full output with this compact amp. This utility amp can also power monitor speakers, headphones or be used as a line amp. The high-impedance input has RCA and screw terminals for flexibility.