A sharper eye for a safer world.

Booster Amplifier

Amplifiers LBD1938-00

  • Wide range of power amplifier from 120W,240W and 480W
  • Multiple outputs - 70 V / 100 V and 8/4 ohm
  • Temperature controlled forced front to back ventilation, directly stackable
  • Mains, battery back-up, and pilot tone supervision
  • Dual inputs with priority switching (LBD1938)

Technical Specifications:

MODEL NO. LBD1938/00
Input Voltage230VAC ±10% at 50/60Hz or
Inrush Current9A at 230 VAC, 11A at 24 VDC
Rated Output (RMS)240W
Power reduction on backup power-1DB
Frequency response60 Hz to 18 kHz (+1 / -3 dB at -10 dB ref. rated output)
Distortion <1% at rated output, 1 kHz
S/N (flat at max volume) > 90 Db
Power consumption 
Max power consumption1600 VA
Mains operationMax power - 990W, -3db - 715W, Pilot tone- 110W,Idle -,25W
24V DC operation  
Max power32A (770W), -3 Db- 26A (625W), Pilot tone- 3.8A (91W), Idle-0.7A (17W),
Line Input s2 x, Connector-3-pin XLR, balanced, Sensitivity-1 V, Impedance->20k ohm,CMRR ->25 dB (50 Hz to 20 kHz), Gain-40 dB
100 V input-Screw, unbalanced,Sensitivity-100 V, Impedance-330k ohm
Line l oop through output2 x,Connector-3-pin XLR, Nominal level-1V, Impedance-Direct connection to line input
Loudspeakers outputs3x, Connector-Screw, floating, Direct output-100 V, 70 V, 8/4 ohm.
Priority only (from input 1)100V/70V internally selectable.
Music (non-priority) only100V/70V internally selectable.
Mechanical Specifications 
Dimensions (H x W x D)145 x 430 x 370 mm
Mounting19" rack, 2U height
Environmental Specifications 
Operating temperature-10 ºC to +45 ºC
Storage temperature-40 ºC to +70 ºC
Relative humidity <95%
Acoustic noise level of fan<48dB SPL at 1m(max output)