Bosch LBB1930/20 Power Amplifier
The Bosch LBB1930/20 Power Amplifier is a powerful, reliable, and highly efficient audio solution designed for professional public address and background music systems. Delivering a robust 120 watts of output power, this amplifier is engineered to provide consistent, high-quality sound performance across a wide range of commercial and industrial applications. Whether installed in offices, schools, retail environments, hospitality venues, or public facilities, the Bosch LBB1930/20 ensures crystal-clear audio delivery with exceptional stability and reliability.
Built with Bosch’s renowned engineering excellence, the Bosch LBB1930/20 Power Amplifier is designed to meet the demanding requirements of professional AV installations. Its advanced circuitry and durable construction ensure long-term performance, making it a trusted choice for integrators and system designers who prioritize quality and dependability.
One of the standout features of the Bosch LBB1930/20 Power Amplifier is its versatility. It supports both low-impedance (4/8 ohms) and high-impedance (70V/100V) speaker systems, allowing seamless integration into various types of PA and sound distribution setups. This flexibility makes it ideal for both small and large-scale installations, where different speaker configurations may be required.
The Bosch LBB1930/20 Power Amplifier is equipped with multiple input options, enabling easy connection to microphones, music sources, and mixing devices. This ensures that users can create a fully functional audio system tailored to their specific needs. Whether it’s for background music, announcements, or paging, the Bosch LBB1930/20 delivers clear and intelligible sound.
Sound quality is a key strength of Bosch LBB1930/20 Power Amplifier. It provides low distortion and excellent signal clarity, ensuring that speech and music are reproduced accurately. This is particularly important in environments such as schools and offices, where clear communication is essential. The amplifier’s performance ensures that every message is delivered with precision and every piece of music is heard as intended.
The Bosch LBB1930/20 Power Amplifier also features built-in protection mechanisms to safeguard both the amplifier and connected speakers. These include overload protection, short-circuit protection, and thermal protection, ensuring safe and reliable operation even under demanding conditions. This level of protection enhances system longevity and reduces maintenance requirements.
Ease of installation and operation is another major advantage of the Bosch LBB1930/20 Power Amplifier. Its compact and rack-mountable design allows for efficient integration into standard equipment racks, saving space and simplifying system organization. The intuitive front panel controls and indicators make it easy to monitor and adjust settings, even for users with minimal technical expertise.
Energy efficiency is also a key consideration in the design of Bosch LBB1930/20 Power Amplifier. It is engineered to deliver high performance while minimizing power consumption, making it a cost-effective choice for long-term use. This is especially beneficial for commercial installations where the system may operate continuously.
The rugged build quality of the Bosch LBB1930/20 Power Amplifier ensures that it can withstand the demands of professional environments. Its robust chassis and high-quality components are designed to perform reliably over time, even in challenging conditions. This makes it a dependable solution for critical audio applications.
Whether you are setting up a new public address system or upgrading an existing one, the Bosch LBB1930/20 Power Amplifier offers the perfect balance of power, performance, and reliability. Its combination of flexible connectivity, superior sound quality, and durable design makes it an excellent investment for any professional audio setup.
Choose the Bosch LBB1930/20 Power Amplifier to experience powerful, consistent, and high-quality audio performance that meets the highest standards of professional sound systems.
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Features
- 120W powerful audio output for professional applications
- Supports 70V/100V and low-impedance speaker systems
- Crystal-clear sound with low distortion
- Multiple input options for flexible connectivity
- Built-in protection: overload, short-circuit, thermal
- Reliable Bosch engineering for long-term performance
- Rack-mountable compact design
- Easy installation and user-friendly controls
- Ideal for PA systems, paging, and background music
- Energy-efficient operation for continuous use
Specifications
| Specification | Details |
|---|---|
| Product Name | Bosch LBB1930/20 Power Amplifier |
Electrical
| Parameter | Specification |
|---|---|
| Mains Power Supply Voltage | 230 VAC ±10%, 50/60 Hz |
| Inrush Current | 8 A |
| Max Power Consumption | 400 VA |
| Mains Current (Max) | 6 A |
Battery Power Supply
| Parameter | Specification |
|---|---|
| Voltage | 24 VDC +15% / -15% |
Performance
| Parameter | Specification |
|---|---|
| Output Power (RMS / Max) | 120 W / 180 W |
| Power Reduction on Backup | -1 dB |
| Frequency Response | 50 Hz – 20 kHz (+1 / -3 dB @ -10 dB ref. rated output) |
| Distortion | <1% at rated output (1 kHz) |
| Signal-to-Noise Ratio | >90 dB (flat at max volume) |
Line Inputs
| Parameter | Specification |
|---|---|
| Number of Inputs | 2 x |
| Connector | 3-pin XLR, balanced |
| Sensitivity | 1 V |
| Impedance | 20 kΩ |
| CMRR | >25 dB (50 Hz – 20 kHz) |
| Gain | 40 dB |
100V Input
| Parameter | Specification |
|---|---|
| Connector | Screw, unbalanced |
| Sensitivity | 100 V |
| Impedance | 330 kΩ |
Line Loop-Through Output
| Parameter | Specification |
|---|---|
| Number of Outputs | 2 x |
| Connector | 3-pin XLR |
| Nominal Level | 1 V |
| Impedance | Direct connection to line input |
Loudspeaker Outputs
| Parameter | Specification |
|---|---|
| Number of Outputs | 3 x |
| Connector | Screw, floating |
| Direct Output | 100 V, 70 V, 8 Ohm |
| Priority Output | 100 V or 70 V (internally selectable, input 1) |
| Music Output | 100 V or 70 V (internally selectable) |
Power Consumption
Mains Operation
| Mode | Consumption |
|---|---|
| Max Power | 274 W (-3 dB), 193 W (-6 dB), 143 W |
| Pilot Tone* | 41 W |
| Idle | 18 W |
24 VDC Operation
| Mode | Consumption |
|---|---|
| Max Power | 7.0 A (168 W) -3 dB, 6.0 A (144 W) -6 dB, 4.3 A (103 W) |
| Pilot Tone* | 0.9 A (22 W) |
| Idle | 0.1 A (2.4 W) |
*Pilot tone: 20 kHz at -20 dB with maximum loudspeaker load
Mechanical
| Parameter | Specification |
|---|---|
| Dimensions (H x W x D) | 100 x 430 x 270 mm |
| Form Factor | 19″ rack, 2U height (with feet) |
| Weight | Approx. 10.5 kg |
| Mounting | Standalone or rack-mounted |
| Color | Charcoal |
Environmental
| Parameter | Specification |
|---|---|
| Operating Temperature | -10°C to +55°C |
| Storage Temperature | -40°C to +70°C |
| Relative Humidity | <95% |
| Acoustic Noise Level | <48 dB SPL at 1 m (max output) |
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