Product Description
-
The LBD 193x amplifiers are powerful power amplifier in a 2U high 19”case (3U housing for LBD 1938) for rack mounting or tabletop use
-
The Bosch Plena power amplifier series with its varied amplification range fulfills a wide variety of public address requirements at a surprisingly low cost
-
The LBD193x amplifiers feature colorful LED bar on the front side to indicate the acoustic level of the signal in dB
-
LBD193x amplifiers have 100V input for slave operation of the amplifier, XLR loop in and loop through facility for ease of installation and 100V output as well as 70V output for connecting to the loudspeakers with line matching transformers,8ohm and 4ohm outputs for connecting to the Low impedance speakers
-
The output voltage can be selected between 100V and 70V internally
-
Additionally LBD1938/00 amplifier features a dual XLR inputs with priority switching
-
Gain or level control is located on the rear of the unit to avoid accidental setting change
-
The amplifier works on 24VDC power supply during emergency situations
-
Features
-
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)
-
Functions
-
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,if the internal temperature reaches a critical limit due to poor ventilation or overload
-
Input
-
The system has two balanced inputs with priority control,each with a loop-through facility
-
This makes it easy to connect remote systems that require priority control
-
An additional 100V line input is provided to connect the amplifier to a 100V loudspeaker line to provide more power to remote locations
-
Gain or level control is located on the rear of the unit to avoid accidental setting change
-
A meter with LED-bar shows the output level
-
Output
-
The amplifier has 70V and 100V outputs for constant voltage loudspeaker systems,and a low impedance output for 8 ohm or 4 ohm loudspeaker loads
-
LBD1938 amplifier also has priority controlled 100V outputs which can be used to route audio coming into priority and program inputs to the loudspeaker
-
The LBD1938/00 amplifier has priority input and program input on the rear which can be used for routing important or emergency announcements when the amplifier is being used as a independent amplifier(ex: with local music source connected to program input)
-
There are Priority input enable and Program input enable pins which are default off and default on respectively,when these enabled by a 24VDC signal then the respective inputs are activated
-
Whenever the priority enable input is supplied with continuous 24VDC signal,the program input is over-rided by the priority input
-
Note*Actual product image may vary from that shown on the picture
Product Specification
Brand | Bosch |
Product Type | Amplifier |
Product Model | LBD1930/00 |
Power Supply | |
Input Voltage | 230VAC ±10% at 50/60Hz or 24VDC ±10% |
Inrush current | 8A at 230 VAC, 6A at 24 VDC |
Performance | |
Rated Output(RMS) | 120W |
Power Reduction On Backup Power | -1 dB |
Frequency Response | 60 Hz to 18 kHz ( 1 / -3 dB at -10 dB ref. rated output) |
Distortion | <1% at rated power,1kHz |
S/N (Flat At Maximum Volume) | > 65 dB |
Power Consumption | |
Maximum Power Consumption | 400 VA |
Mains Operation | |
Maximum Power | 274W |
-3 dB | 193W |
Pilot Tone | 41W |
Idle | 18W |
24V DC Operation | |
Maximum Power | 7.0A (168W) |
-3 dB | 6.0A (144W) |
Pilot Tone | 0.9A (22W) |
Idle | 0.1A (2.4W) |
Line Inputs | 2 x |
Connector | 3-pin XLR, balanced |
Sensitivity | 1 V |
Impedance | >20k ohm |
CMRR | >25 dB (50 Hz to 20 kHz) |
Gain | 40 dB |
100V Input | |
Connector |
Bosch Plena Booster Amplifier 120W LBD1930/00$ 52.70 $ 40.54 Please select combo product attributes
The combo subtotal is $,SAVE$
Unavailable
You May Also Like![]() $ 34.99 Carriwell | Organic Cotton Maternity & Nursing Bra![]() $ 68.95 $ 53.04 NETGEAR Orbi Wall-Plug Whole Home Mesh WiFi System - WiFi Router and 2 Wall-Plug Satellite Extenders with speeds up to 2.2 Gbps Over 5,000 sq. feet, AC2200 (RBK33)![]() $ 88.97 $ 68.44 Galaxy Audio ANT-DISTDC Wireless Microphone Antenna Distribution System![]() $ 62.57 $ 48.13 Pulse Larsen FB3900WA Omni Base Station Antenna 890-960 Mhz - Mounting Hardware Not Included![]() $ 88.63 $ 68.18 Panasonic KX-TGM422AZB Amplified Cordless Twin Handset![]() $ 30.00 Merx - Shiny Chain Multi Shape Necklace![]() $ 44.99 Segway Navimow Antenna Extension Kit![]() $ 67.56 $ 51.97 Profoto 901012 D2 500 AIRTTL![]() $ 62.92 $ 48.40 Netgear Orbi RBK863SB | AX6000 Tri-Band WiFi 6 Mesh System (Router 2 Satellites Extender)![]() $ 17.88 Retevis MA08 Omni-Directional Mobile Car Antenna Walkie Talkie Radio VHF 136-174MHz 50W 2.15dBi with PL259/SL16-J/M ConnectorCart
+
![]() Your cart is currently empty.
|