Name: BOSCH LBB1938 Power Amplifier Price in Bangladesh - Olefins BD
Price: 133000 BDT
Availability: InStock

BOSCH LBB1938 Power Amplifier

133,000৳

অস্থিতিশীল বাজার মূল্যের কারনে প্রোডাক্টের দাম ও স্টক পরিবর্তিত হতে পারে, তাই অর্ডার দেয়ার আগে আমাদের সাথে যোগাযোগ করার অনুরোধ রইলো।

The Bosch 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 of the LBB1938/20 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.

There are two separate priority controlled 100 V outputs for zones that only need announcements made via the priority input, and for zones that will not get any announcements made via the priority input.

Rack mounting brackets supplied.

480 watts
Very high audio performance power amp
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
24v override relay output
Temperature controlled fan
AC and 24VDC operation
LED VU Meter
Dual inputs with priority switching
Temperature controlled forced front to back
Mains, battery back-up, and pilot tone supervision
TÜV certified according to IEC 60849

BOSCH LBB1938 Power Amplifier Spces:

Voltage: 230VAC, ±10%, 50/60 Hz
Inrush current :19 A
Max power consumption: 2200 VA
Battery power supply
Voltage: 24 VDC, +20% / -10%
Current max: 30 A

Performance

Output power (rms/maximum): 480 W / 720 W
Power reduction on backup power: -1 dB
Mains power supply
Frequency response: 50 Hz to 20 kHz (+1/‑3 dB @ ‑10 dB ref. rated output)
Distortion: <1% @ rated output power, 1 kHz
S/N (flat at max volume): >90 dB
Line inputs: 2 x
Connector: 3-pin XLR, balanced
Sensitivity: 1 V
Impedance: 20 kohm
CMRR: >25 dB (50 Hz to 20 kHz)
Gain: 40 dB
100 V input: Connector Screw, unbalanced
Sensitivity: 100 V
Impedance: 330 kohm
Line loop-through output 2 x
Connector: 3-pin XLR
Nominal level: 1 V
Impedance: Direct connection to line input
Loudspeaker outputs: 3 x
Connector: Screw, floating
Direct output: 100 V, 70 V, 8 ohm
Priority only (from input 1): 100V or 70 V internally selectable
Music (non-priority) only: 100V or 70 V internally selectable

Power consumption

Max power: 990 W
-3dB 715 W
-6dB 510 W

Pilot tone* 110 W

Idle 25 W

24 VDC operation

Max power 32 A (770 W)
-3 dB: 26 A (625 W)
-6 dB: 18 A (430 W)

Pilot tone*: 3.8 A (91 W)

Idle: 0.7 A (17 W)
* 20 kHz -20dB with maximum loudspeaker load

Mechanical
Dimensions (H x W x D): 145 x 430 x 370 mm / (19″ wide, 3U high, with feet)
Weight: Approx. 25 kg
Mounting: Standalone, 19”rack
Color: Charcoal

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