The Bosch LBB1925/10 Plena 6 zone pre-amplifier fulfils 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
• 19" mounting brackets included
• 2U high