Bosch LBC 3950/01 Ceiling Speaker

Bosch LBC 3950/01 . Ceiling Speaker is a dedicated audio device belonging to the high-end PA (Public Address) system of Bosch - the world's leading brand in the electrical - industrial audio industry. This is the ideal solution for areas that need to make clear announcements, play soft background music or provide stable full-range sound in a wide environment.

With a rated power of 6W, sound pressure up to 96 dB SPL, and effective moisture-proof design, the product not only meets strict technical standards but is also suitable for all styles of plaster ceiling interiors.

Optimal design for ceiling mounting – Lightweight and effective moisture resistance

The Bosch LBC 3950/01 is designed to be mounted directly to the ceiling with a round shape and an overall diameter of only 160 mm, with a 145 mm cut-out – allowing for quick installation without much customization. The construction materials include a metal mesh coated with RAL 9010 white electrostatic paint combined with a fire-resistant plastic body, providing high durability in humid and dusty environments.

The light weight of only 690g makes the speaker suitable for weak ceilings such as plaster or composite plastic. The ceiling thickness range supports from 9 to 25mm, combined with the spring clamp mounting mechanism, creating absolute flexibility in actual construction. The optimal design allows for aesthetic installation, sound without exposing the equipment, while ensuring long-term sustainability for the system.

Audio Power & Performance – Delivering Messages Clearly

In terms of sound quality, the Bosch LBC 3950/01 shows a clear advantage with a rated power of 6W, supporting many options such as 6/3/1.5/0.75W depending on the space of use, very convenient in designing sound zoning systems. The standard operating voltage of 100V makes the speaker easy to integrate into high impedance speaker networks.

With a sound pressure level of 96 dB SPL at 1m (1kHz, 6W) and 99 dB SPL at 4kHz, the product delivers clear, loud and distortion-free sound. In particular, the 170° sound coverage angle at 1kHz ensures that the sound spreads evenly throughout the space, minimizing dead spots.

The frequency range of 60 Hz – 18 kHz allows for natural speech reproduction and smooth background music – a rare feature in the compact ceiling speaker segment.

Practical Applications – Optimized for Commercial and Public Spaces

Bosch LBC 3950/01 ceiling speakers are widely used in building sound systems thanks to their flexibility and high reliability. In spaces such as shopping malls, supermarkets, shops, hotels, offices, restaurants or hospitals - the product helps to make clear announcements and play soft background music without causing discomfort.

In particular, in PAVA (Public Address & Voice Alarm) systems, the loudspeaker meets the requirements for clear voice reproduction in emergency situations. For example, when installed in a large supermarket such as AEON Mall, Bosch LBC 3950/01 can be used to broadcast hourly promotional announcements, with consistent sound between stalls, helping customers easily access information without overlap.

Compare Bosch LBC 3950/01 with other ceiling speaker models

Compared to popular ceiling speakers such as Yamaha VXC4 or TOA PC-2852, Bosch LBC 3950/01 shows outstanding advantages in sensitivity and sound coverage. While competing models usually have a capacity of only about 4W and SPL range of 88-92 dB, Bosch LBC 3950/01 provides sound pressure up to 99 dB at 4kHz, while maintaining stability during continuous operation.

In addition, Bosch uses better moisture-proof and sound-absorbing materials, helping to prolong the life in high humidity or dusty environments such as restaurants and factories. With a rated impedance of 1667 ohms, the product can easily divide lines in a multi-speaker system without the need for an additional impedance divider. Although the price is slightly higher than the low-cost lines, the sound quality and durability of Bosch are completely worth the investment.

How to install and maintain effectively

Installing the Bosch LBC 3950/01 is relatively simple and does not require specialized techniques. Users only need to drill a Ø145 mm hole in the ceiling, then install the speaker and use a spring mount to fix it, then connect the 100V power cord with the appropriate power selection. Note that you should choose a fire-resistant wire and check the grounding before operating.

During use, periodically clean the metal mesh surface with a soft cloth, absolutely do not use chemicals that corrode the paint. In addition, check the connection wire every 6 months to ensure there is no short circuit or loose jack. Do not let the speaker operate at maximum power continuously for more than 80% of the operating time each day to maintain the life of the driver.

Reviews from users and experts

Sound engineers at many large retail systems such as Lotte Mart, BigC, AEON Mall all rate the Bosch LBC 3950/01 as a speaker model that is "stable - clear - easy to deploy in large quantities". End users said they were satisfied because the sound was not distorted even at far angles and the voice was still clear and easy to hear in noisy environments.

According to industrial audio engineer Nguyen Trong Duong, the speaker has “even frequency response – suitable for both announcements and background music”, and is “compatible with most 100V amplifiers from TOA, Bosch, Honeywell”. Factors such as wide coverage angle, quick installation, and solid sound are the reasons why this product is often chosen for professional audio projects.

Frequently asked questions about Bosch LBC 3950/01 Ceiling Speakers

Where is the Bosch LBC 3950/01 speaker suitable for installation?

The speaker is designed for use in public address system and background music in spaces such as supermarkets, shopping malls, offices, restaurants, hotels, hospitals and public areas with flat ceilings. With a wide 170° sound coverage angle and 6W power, the device is suitable for areas from 15–30m²/speaker.

Can the Bosch LBC 3950/01 be used to play music?

Absolutely. Although designed primarily for voice announcements, with a frequency range of 60Hz to 18kHz, ceiling speaker Still reproduces light background music well such as jazz, acoustic, instrumental. However, it is not recommended for genres that require strong bass such as EDM or dance music.

What voltage does the speaker operate at? Can it be used with a regular amplifier?

The Bosch LBC 3950/01 operates on a rated voltage of 100V and is intended for use in high impedance distributed audio systems. The device is not suitable for direct connection to conventional low impedance amplifiers (8Ω, 4Ω) without a distribution transformer.

Are the speakers moisture and heat resistant?

Yes. The entire speaker housing is made of high-quality fireproof plastic, the metal mesh is electrostatically painted, and can withstand average environmental humidity. This is the reason why the speaker is trusted in areas such as hallways, basements, garages or places with high humidity.