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OBT 605 ceiling speaker The OBT 605 ceiling speaker is an ideal choice for spaces that require a combination of aesthetics, quality sound and space saving. This device uses 70V/100V audio transmission technology - the standard in public address systems - making it easy to integrate into a multi-speaker network, suitable for large projects.
OBT 605 has an overall size of 188 × 76 mm with a standard hole diameter of 170 mm, making it a suitable choice for hidden installation in plasterboard ceilings without affecting the ceiling structure or interior design.
The shell is finished with high-quality fireproof material, combined with a white electrostatically painted metal mesh, creating an elegant, modern and almost "invisible" feeling in the space. The round design helps to disperse sound in many directions, providing a wider and more even sound coverage in the usage environment.
The OBT 605 speaker is equipped with a rated power of 5W/10W with an input voltage of 70V or 100V, providing flexibility when combining with public sound systems.
Frequency response from 100Hz to 15kHz with sensitivity of 90 ± 2dB helps to reproduce clear midrange and bright treble, ideal for background music, voice and announcements in large spaces. With stable performance over a long period of time and the ability to disperse sound evenly, the speaker meets the requirements of use in many spaces such as hallways, showrooms, cafes or meeting rooms.
OBT 605 ceiling speakers are widely used in both civil and commercial works thanks to their compact design, easy installation and compatibility with many sound systems. In the family space, the product is suitable for installation in the living room, kitchen, bedroom, helping to create gentle background sound, not taking up space but still ensuring a quality listening experience.
For commercial areas such as cafes, restaurants, retail stores, OBT 605 helps spread music evenly, increasing emotional value and experience for customers. In addition, the device also works effectively in office buildings, conference centers or schools thanks to its stability, energy saving and good moisture resistance.
Installing the OBT 605 ceiling speaker is not too complicated, users only need to prepare some basic tools such as a drill, measuring tape, screwdriver and specialized speaker wire. The first step is to determine the appropriate installation location to ensure the sound spreads evenly in the space, avoiding acoustic dead corners.
Next, drill a hole with a diameter of 170mm and carefully check the ceiling above to avoid collision with power lines or obstacles. Next, connect the speaker wire to the amplifier system using the 70V/100V standard. Once connected, place the speaker in the ceiling cavity and secure it with special mounting ears or screws. Finally, test the system to check stability and adjust the volume to suit the usage environment.
Compared to other ceiling speakers in the mid-range segment, the OBT 605 stands out thanks to its balance between design, sound performance and installation flexibility. While many products only have 3W–5W power and low sensitivity below 88dB, the OBT 605 offers 5W or 10W power options, meeting both small and medium spaces.
The 100–15,000Hz frequency range is wider than the average of mainstream speakers, helping to clearly express both voices and high-tempo background music. In addition, the moisture resistance, compact size and aesthetic speaker face make the device suitable for many modern spaces. Up to now, the OBT 605 is one of the ceiling speaker products that maintains a good balance between price and performance.
To ensure long-term use and stable sound, users should periodically check and maintain the OBT 605 speaker. Cleaning the speaker grille with a soft cloth helps remove dirt, ensuring that the sound is not muffled or reduced in frequency. Avoid placing the speaker in areas with continuous high humidity or direct sunlight to help protect internal components from premature damage.
In addition, do not use the speaker at maximum volume continuously to avoid distortion and increase the internal temperature. When there are signs of noise or distortion, check the connection system, especially the signal wire and power source. Proper maintenance will help the device maintain stable sound quality and significantly extend its life.
According to the team of consultants and technicians at Phuc Truong Audio, the OBT 605 speaker has received many positive reviews from customers who have used it. Most of the feedback said that the product provides clear, even sound without echo or noise when installed in offices, restaurants or living rooms.
Many customers appreciate the ease of installation, especially those with basic experience in sound systems, who can install it themselves within 15-20 minutes. Although some customers initially found the price a bit higher than non-branded speakers, after using it, they all agreed that the OBT 605 was “worth the money”, especially in terms of stability and device life.
The trust from the OBT brand, combined with after-sales service from Phuc Truong Audio, has made many people willing to recommend OBT 605 to relatives and friends.
OBT 605 speaker has a rated power of 5/10W and a sensitivity of 90dB, suitable for installation in spaces with an area of 15–40m². public address system or background music, users can use 2–4 OBT 605 speakers to ensure clear and even sound distribution throughout the room.
Yes. The OBT 605 speaker uses 70V/100V input, so it needs to be matched with ampli Specialized amplifiers use 70V/100V output transformers, commonly found in public address systems (PA systems). Using the right amplifier helps ensure sound quality and speaker durability.
Yes. Design of ceiling speaker OBT 605 uses moisture-proof material for the speaker membrane and electrostatic painted mesh, helping the speaker operate stably in high humidity environments such as kitchens, hallways, toilets or covered semi-outdoor areas.
Absolutely. As long as the other speakers use the same 70V/100V voltage, you can connect the OBT 605 to many different models to form a multi-point speaker system. However, you need to calculate the total power of the speakers to choose an amplifier with enough power to avoid distortion or burning the device.
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