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Bosch LBC 3951/11 . Ceiling Speaker is a specialized audio device designed for background music and public announcement systems. With its compact design and stable performance, this product becomes the preferred choice for spaces such as offices, shopping malls, restaurants, hotels, schools, etc.
Choosing a device like the Bosch LBC 3951/11 not only enhances the sound experience but also helps optimize the aesthetics of the space. In this article, we will delve into the technical aspects, design, application and practical benefits of this ceiling speaker line, to help users make the most appropriate decision.
The Bosch LBC 3951/11 speaker has a diameter of only 160mm and a depth of 95mm, specially designed to be mounted in the ceiling without exposing the device or losing aesthetics. The speaker housing is made of moisture-proof, durable composite material with a dust-proof and anti-oxidation coating, meeting IP54 standards.
Thanks to its compact physical structure, the speaker can be easily integrated into plasterboard, wooden or aluminum ceiling systems, suitable for modern interior design. Bosch LBC 3951/11 is not only a sound emitting device but also a harmonious part of the overall architectural space.
With a rated power of 6W (supports 3W customization) and a maximum power of 9W, the Bosch LBC 3951/11 speaker is capable of emitting powerful, clear and wide-ranging sound. The sound pressure level reaches 96dB at 6W and 88dB at 1W, allowing clear, distortion-free transmission of voice or background music even in noisy environments.
The frequency response range from 60Hz to 18kHz ensures full reproduction of the bass to treble ranges, without any loss of range or harshness. These parameters prove that the Bosch LBC 3951/11 is suitable for sound systems that require high clarity, such as public address broadcasting, background music in restaurants or large lobby areas.
With a rated voltage of 100V and an impedance of 1667 ohms, the Bosch LBC 3951/11 loudspeaker is optimized for zoning and public address systems. This makes it easy to connect to low to medium power amplifiers, especially systems with multiple loudspeakers operating in parallel.
The flexible combination ability also helps users easily expand the sound system in the future without having to change the current infrastructure. In addition, the speaker has a rotating clamp installation mechanism that makes the ceiling mounting process quick and secure. This is a big plus in construction projects or large-scale installations.
Compared to products such as TOA PC-658R or Yamaha VC6, Bosch LBC 3951/11 shows advantages in sound clarity (SPL 96dB) and superior durability (IP54). Many other speaker models in the same price range usually only reach a rated power of 3-5W, while Bosch reaches 6W with the ability to expand up to 9W.
The quick installation design without the need for separate accessories is also a point where Bosch is superior to TOA. In terms of finishing quality, Bosch's materials provide a solid feeling and are more dust-proof than many models in the same segment. In particular, the product is also easy to maintain and service, suitable for systems that need to operate continuously such as restaurants, shopping malls or public address systems.
Using Bosch LBC 3951/11 brings many practical benefits such as sound distributed evenly throughout the space, without creating "dead" spots or harsh sounds nearby. The speaker helps to convey clear announcements, contributing to creating a professional space for the office or store.
Thanks to its compact and hidden design in the ceiling, the product does not affect the overall aesthetic layout. In addition, its high durability helps to minimize long-term maintenance costs, especially in environments with high humidity or dust such as restaurants and hotel lobbies. Compatibility with 100V systems allows users to flexibly expand the speaker system without upgrading the entire central device.
The installation process of Bosch LBC 3951/11 is quite simple but still requires proper technique. First, it is necessary to determine the position of the speaker to ensure that the sound is evenly distributed, not too close to the wall or pillar. Drill a hole with a diameter of exactly 160mm on the plasterboard or aluminum ceiling, then connect the speaker wire to the 100V source with the correct polarity.
Use the mounting clips provided on the speaker to secure it to the ceiling, ensuring that it is not loose or misaligned. Finally, test the sound from the system to check the volume level, coverage and clarity. Proper installation helps to optimize the sound performance and prolong the life of the device.
To maintain the sound quality and lifespan of the Bosch LBC 3951/11 speaker, users should perform periodic maintenance every 6 months. Clean the speaker surface with a dry cloth, avoid using chemicals or water. Check the wiring system and connectors for signs of oxidation or broken wires.
In case of operation in high humidity environments such as restaurants or covered outdoor corridors, the speaker's adhesion to the ceiling and the dust cover should be checked periodically.
If the speaker is integrated into a smart system or remote control, it is recommended to update the firmware (if available) to ensure the best compatibility. Performing proper maintenance will not only prolong the life of the speaker, but also ensure the system operates stably for a long time.
Yes. This is a speaker line specifically designed for Public Address (PA) systems using 100V voltage, allowing multiple speakers to be connected simultaneously in one public address systemWith an SPL of 96dB and a stable power of 6W, the speaker delivers clear, easy-to-hear sound even in noisy environments.
Depending on the ceiling height and space area, the recommended distance is 3 – 5 meters/speaker to ensure even sound coverage and no overlap. For ceilings higher than 3.5m, increase the power or reduce the distance between speakers to ensure clarity.
Bosch LBC 3951/11 meets IP54 standards, dustproof and light water resistance. Therefore, the speaker can be used in high humidity areas or covered semi-outdoors, such as hotel lobbies, garden restaurants. However, the speaker should not be installed in direct rain areas or marine environments.
Yes, as long as the amplifier has a 100V line output and the total power distribution is suitable for the system. Although the Bosch LBC 3951/11 is only 6W, when installing many speakers at the same time, it is necessary to calculate the total load so as not to exceed the amplifier's capacity. Karaoke amplifier 120W – 240W is suitable for a system with 20–40 speakers of this type.
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