Bosch Plena LBB 1925/10 Six-Zone Preamplifier

£697.00 EX VAT


The Bosch Plena LBB 1925/10 is a Six-zone Pre-amplifier Mixer, capable of fulfilling a 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.

Two input channels are provided for paging microphone call stations, alongside a universal input for Mic/Line with speech-optimized Tone Control & 3 inputs for BGM selection-optimized music. For clarification purposes: Background music and call station zone selection appears on the front-facing section of the LBB1925/10.

Product Features:

  • Three inputs for BGM selection
  • Six-zone Preamplifier – single or dual channel operation
  • Universal input for Mic/Line, with speech-optimized tone control
  • Front panel zone selection for BGM; Call station zone selection for calls
  • PC & Trigger inputs for automated calls, alarm tones and chimes to selected zones


LBB 1925/10

Frequency Response

50 Hz – 20 kHZ @ +1/-3 dB

Inrush Current

  • 3A; 115V AC
  • 1.5A; 230V AC

Power Consumption

25 VA

Priority Mute

>40 dB


Bass Control: 10 dB @ 100 Hz
Treble Control: ±10 dB @ 10 kHz


>40 dB

Phantom Power Supply

16V via 1.2 kOhm (in mic)

Music Output

  • 3-pin XLR, balanced

Headphone Output

  • 6.3 mm Jack Stereo, signal mono


Standalone: 19” rack


Approx: 5 kg


100 mm H x 430 mm W x 270 mm D

To view additional information, be sure to check out the Data Sheets below.

Data Sheets

Data Sheet

Additional information




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