Name: Bosch LBB 1938/20 Plena Power Amplifier
Brand: Bosch
Price: 165000 SAR
Availability: InStock

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Bosch LBB 1938/20 Plena Power Amplifier

Price: SAR 165000

Brand: Bosch

Model: LBB 1938/20

Key Features :

480 W power amplifier in a 3U high 19”housing
EN 54‑16 certified and EN 60849 compliant
70 V / 100 V and 8 ohm outputs
Dual inputs with priority switching
100 V input for slave operation on 100 V speaker line

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Specification
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Specification

Bosch LBB 1938/20 Plena Power Amplifier
RMS	480 watt
Pilot tone	110W
Idle	25W
Storage temperature	-40 Degree Celsius to +70 Degree Celsius
Direct output	100 V, 70 V, 8/4 ohm
Dimensions (H x W x D)	145 x 430 x 370 mm
Weight	25kg
Operating temperature	-10 Degree Celsius to +45 Degree Celsius
Model	Bosch LBD1938/00
Input Voltage	230VAC +/-10percent at 50/60Hz or 24VDC
Frequency response	60 Hz to 18 kHz (+1 / -3 dB at -10 dB ref. rated output)
Power consumption	1600 VA

Description

Bosch LBB 1938/20 Plena Power Amplifier

The LBB 1938/20 is a powerful 480 W power amplifier in a 3U high 19”case for rack mounting or tabletop use. LEDs on the front panel 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.

Dependability

The amplifier is protected against overload and short circuits. A temperature-controlled fan ensures high reliability at high output levels and low acoustic noise at lower output levels. An overheat protection circuit switches off the power stage and activates an LED on the front panel, if the internal temperature reaches a critical limit due to poor ventilation or overload.
The unit operates both on mains power and on a 24 V battery power supply for emergency back up, with automatic switchover.
For emergency and evacuation use, the following functions are monitored: mains presence, battery present, pilot tone presence, amplifier operation. Front panel LEDs indicate the status of supervised functions. The LEDs of pilot tone supervision and battery status can be switched off for general public address use. Failsafe (normally energized) relays are provided for each supervised function. These relays are always active regardless of the switches on the rear panel.

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Product Information

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