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Bosch LBB 1935/20 Power Amplifier

Plena slave amplifier with 70v, 100v and 8 ohm outputs. 240 watts.


The Bosch LBB 1935/20 is a powerful 240 Watt power amplifier in a 2U high 19” case for rack mounting or tabletop use.

LEDs on the front panel of the LBB1935/20 show the status of the amplifier: power, audio output level, and supervised functions. This high-performance unit fulfills a wide range of public address requirements at a surprisingly low cost.

  • 240 watts
  • EN 54‑16 certified and EN 60849 compliant
  • Dual inputs with priority switching
  • Very high audio performance power amps
  • Can be used to boost Plena Voice alarm systems with system monitoring
  • XLR and jack input with XLR and Jack loop through outputs
  • 100 volt line input. Ideal for remote location booster amps
  • 100v, 70v and 8 ohm outputs
  • Temperature controlled forced front to back ventilation
  • AC and 24VDC operation
  • LED VU Meter