About Plena Booster Amplifier 120 W LBD1930/00
The LBD1930/00 amplifier is a powerful power amplifier in a 2U high 19"case 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 LBD1930/00 amplifier features a colorful LED bar on the front side to indicate the acoustic level of the signal in dB. The LBD1930/00 amplifier has a 100V input for slave operation of the amplifier, XLR loop in and loop through facility for ease of installation and a 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.
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
Excellent signal to noise ratio (> 80 dB)
High-Quality Sound PerformanceEnjoy clear audio with a wide frequency response of 60 Hz to 18 kHz. The amplifier offers tone controls for both bass and treble, and keeps harmonic distortion below 1% at rated output so voice and music remain distinct and polished. Forced air cooling further ensures performance consistency even during extended use.
Flexible Input and Output OptionsSupporting 1 line input, 1 mic input, and 1 emergency input, the LBD1930/00 easily adapts to varied setups. Output terminals allow connection to external speakers using 100 V, 70 V, or 8 Ohm configurations, suitable for both distributed and point-source sound reinforcement.
Reliable Installation and OperationThe amplifier is rack-mountable in standard 19-inch racks, featuring a rugged metal chassis finished in matt black enamel paint. Protection against overload and short-circuit, together with standby power consumption below 5 W, ensures long-term reliability and efficiency for public address systems.
FAQ's of Plena Booster Amplifier 120 W LBD1930/00:
Q: How do I connect external speakers to the Plena Booster Amplifier 120 W LBD1930/00?
A: You can connect external speakers through the amplifier's output terminals, which support 100 V line, 70 V line, and 8 Ohm connections. This flexibility allows you to integrate various speaker systems as needed for your venue.
Q: What is the benefit of forced air cooling in this amplifier?
A: The forced air cooling system helps maintain optimal operating temperature during continuous use, reducing the risk of overheating and ensuring consistent audio performance over extended periods.
Q: Where is this amplifier commonly used in India?
A: It is widely used in public address and sound reinforcement installations such as auditoriums, educational institutions, religious venues, and large commercial buildings throughout India, distributed by authorized partners and manufacturers.
Q: What type of protection features does the amplifier offer?
A: The LBD1930/00 provides overload and short-circuit protection, which safeguards the unit and connected equipment from damage caused by excessive loads or faults in the wiring.
Q: How can I remotely adjust the volume on this amplifier?
A: Remote volume control terminals are provided, allowing adjustment from a distance. This is particularly useful in distributed systems where the amplifier is installed away from the user's location.
Q: When should I use the emergency input on the amplifier?
A: The emergency input is intended for priority announcements during critical situations. Activating this input ensures that emergency messages override other input sources for immediate attention.