Bosch LBB 1938/30 Power Amplifier

£1,060.00 ex VAT.

Description

The Bosch LBB 1938/30 is a supremely sophisticated 480W Power Amplifier, enclosed in a 19″ 3U case for rack mounting or tabletop use.

This high performance unit further fulfils a wide range of Public Address requirements at a surprisingly low cost.

LEDs on the front panel of the LBB 1938/30 show the status of the Amplifier: Power, Audio Output Level and Supervised Functions.

Product Features:

  • Protected against overload & short circuits
  • Front panel status LEDs for supervised functions
  • Overheat protection circuit with LED warning on front panel
  • Two balanced inputs with priority control, each with loop‑through
  • Monitored mains, battery and pilot-tone presence; amplifier operation for Emergency/EVAC use
  • Temperature-controlled fan for High Reliability at high output levels & Low Acoustic Noise at lower output levels

Specifications:

LBB 1938/30

LBB 1935/20

LBB 1930/20

Voltage (EU)

220/230 VAC, ±10%, 50/60 Hz
230 VAC, ±10%, 50/60 Hz
230 VAC, ±10%, 50/60 Hz

Frequency Response

50 Hz to 20 kHz @ +1/‑3 dB
50 Hz to 20 kHz @ +1/‑3 dB
50 Hz to 20 kHz @ +1/‑3 dB

Power Consumption

2200 VA
760 VA
400 VA

Inrush Current

19 A
9 A
8 A

Distortion

<1% @ 1 kHz
<1% @ 1 kHz
<1% @ 1 kHz

CMRR

>25 dB (50 Hz to 20 kHz)
>25 dB (50 Hz to 20 kHz)
>25 dB (50 Hz to 20 kHz)

Current (Max)

30 A
11 A
6 A

Gain

40 dB
40 dB
40 dB

Sensitivity

100V
100 V
100 V

Impedance

330 kOhm
20 kohm
20 kohm

Connectors

  • Screw, unbalanced
  • 3‑pin XLR, balanced
  • Screw, unbalanced
  • 3‑pin XLR, balanced
  • Screw, unbalanced
  • 3‑pin XLR, balanced

Mounting

Standalone; 19″ rack
Standalone; 19″ rack
Standalone; 19″ rack

Line Inputs

Two
Two
Two

Operating Temperature

-10 ºC to +55 ºC
-10 ºC to +55 ºC
-10 ºC to +55 ºC

Dimensions

145 mm H x 430 mm W x 370 mm D
100 mm H x 430 mm W x 270 mm D
100 mm H x 430 mm W x 270 mm D

Weight

Approx: 25 kg
Approx: 12.5 kg
Approx: 10.5 kg

Data Sheets

Data Sheet

Additional information

Manufacturer

Bosch

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