The Bosch LBB 1925/10 Plena 6 zone pre-amplifier fulfills a wide variety of public address requirements at a surprisingly low cost. It can provide dual channel operation for simultaneous calls and BGM for up to six different zones using two Plena amplifiers or single channel operation using one amp.

Two input channels are provided for paging microphone call stations, a universal input for mic / line with speech optimized tone control and 3 inputs for BGM selection optimized for music.

Background music and call station zone selection is on the front of the LBB1925/10.



6 zone system pre-amplifier, with single or dual channel operation
Two input channels for call stations
Universal input for microphone/line, with speech optimized tone control
Allows multiple 6 zone call stations to be daisy-chained
Separate music and call channels with dedicated tone controls
6 levels of priority available
Routable Music to zones
Emergency/telephone input
24v override output on each zone
Selectable alarm tone, time signal and chimes
3 separate BGM inputs and music optimized tone control
Further Mic/line input
Headphone monitor
VU meter