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OBT 818 ceiling speaker is a line of speakers that is increasingly popular in modern interior projects thanks to its ability to reproduce detailed sound, compact design and flexible installation. This product is a combination of aesthetics and sound technology, making the space more luxurious while still ensuring a vivid sound experience.
The OBT 818 ceiling speaker has a minimalist design with an overall size of 245 × 67 mm and a light weight of only 1.05 kg, making it easy to integrate into popular ceiling systems such as plasterboard ceilings and aluminum ceilings. The neutral white design and thin speaker bezel make the OBT 818 almost "invisible" in the interior space, providing aesthetic continuity.
In addition, the speaker is equipped with high-quality composite speaker membrane technology to reproduce smooth sound, minimizing distortion and noise. Sensitivity of 90 ± 2dB allows OBT 818 to produce clear sound even at low power levels. With flexible 70V or 100V input, the product can be easily combined in the central sound system without having to use separate amplifiers for each speaker.
Using OBT 818 brings many outstanding benefits, especially in public spaces such as restaurants, cafes, offices and commercial areas. Thanks to the recessed ceiling design, the product does not take up floor or wall space, keeping the space neat and airy.
The feature of evenly dispersing sound throughout the entire area prevents the sound from being localized to one point, ensuring a consistent experience for all listeners. In addition, the maximum power of 15W and the frequency response range of 100Hz - 15kHz allow the speaker to transmit both soft music and clear voice, helping users enjoy a quality sound experience without having to invest in a complex system. This is also a cost-saving solution when deployed synchronously for many different rooms or areas in the same system.
Installing the OBT 818 ceiling speaker is quite simple, but to achieve optimal sound performance, it is necessary to pay attention to some technical points. First, the user needs to determine the appropriate distance between the speakers and the installation location away from obstacles such as walls or ceiling fans. Then, use a drill to create a round hole with a diameter of 225mm according to the ceiling cut size of the speaker.
Wiring should be done carefully according to the 70V or 100V voltage connection diagram depending on the sound system being used. Make sure the wire is not twisted or tangled to avoid signal loss. When mounting the speaker to the ceiling, simply squeeze the spring pin lightly so that the speaker is firmly attached to the drilled hole, no additional support is needed. Once completed, test the audio connection by playing a piece of music or speech to ensure there is no distortion, howling or loss of sound.
When placed next to products in the same segment such as Toa PC-658R or Bosch LBC 3090/01, OBT 818 shows many outstanding advantages in both power and sensitivity. While Toa PC-658R only reaches 6W and Bosch LBC 3090/01 reaches 9W, OBT 818 offers 5W or 15W options, providing wider sound coverage for large spaces.
The sensitivity of 90 ± 2dB also helps the OBT 818 reproduce sound more clearly and save more power than its competitors. In addition, the modern design with a wide sound grille helps improve sound dispersion efficiency, limiting dead spots that many old speaker lines encounter.
In terms of integration into existing audio systems, the OBT 818 has the advantage of being compatible with most 70V/100V distribution amplifiers, helping to save investment costs. The price of the OBT 818 is also considered reasonable compared to its quality and actual performance.
Sound quality is a big plus of the OBT 818 ceiling speaker. With a frequency response ranging from 100Hz to 15kHz, the speaker performs well in the mid and high ranges, making speech clear, music clear and not harsh. High-quality speaker membrane combined with acoustic resonance design helps the sound spread evenly in space, not creating the feeling that the sound is only coming from one direction.
In actual use, the OBT 818 shows stable sound processing ability, without howling when the volume is turned up - this is very important for fixed installation systems. When combined with sound sources from computers, players or conference microphones, the speaker provides good compatibility and does not require additional auxiliary sound processors.
Whether at 5W or 15W power level, OBT 818 still maintains clear sound without distortion, especially in noisy environments such as restaurants or cafes.
To keep the OBT 818 speaker working efficiently and prolonging its life, users should perform regular maintenance according to professional instructions. First, wipe the speaker surface with a soft cloth every week, avoid using water or strong detergents because it can damage the outer protective layer.
Second, periodically check the connection wires and power supply to detect early signs of open, broken or loose jacks - common causes of signal fluctuations. In addition, avoid installing speakers near steam, heat-generating devices or places with high humidity such as near the stove or air conditioner.
In open spaces or long-term use, the interior should be cleaned periodically every 6 months by removing the speaker from the ceiling and cleaning the grille with a soft brush or compressed air. With these basic care operations, the OBT 818 speaker will always maintain its sound quality as new and operate durably for a long time.
Ceiling speakers OBT 818 with maximum power of 15W and sensitivity of 90 ± 2dB can cover well the space from 10 - 25m²/speaker, depending on ceiling height and purpose of use. With a system of 4-6 speakers, you can perfectly cover the sound for a meeting room of 50-80m² or a waiting room, a cafe of medium size.
Yes. OBT 818 supports both 70V and 100V voltage, suitable for public address system and easy to match with many types of high impedance amplifiers. Depending on the system capacity, you can choose the corresponding 5W or 15W power tap level.
The OBT 818 speaker is dustproof and resistant to light humidity, but is not designed for a completely outdoor environment. You can install the speaker in a covered hallway or ventilated area, but avoid direct exposure to rain, water and strong sunlight to protect the speaker's lifespan.
Absolutely. Thanks to its 100Hz – 15kHz frequency response and full-range speaker design, the OBT 818 is extremely effective at playing background music in commercial spaces, offices and restaurants. The sound is soft, smooth and does not cause earache when listening for a long time.
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