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OBT 611 ceiling speaker is the top choice for projects that require consistent, clear sound while still maintaining high aesthetics. Designed according to construction standards with 100V lines, the product is easily integrated into the zoned sound system, saving implementation costs.
With 30W capacity, 88dB sensitivity and neat round design, OBT 611 brings sharp sound experience in spaces such as offices, restaurants, hotels, showrooms. The article will help you understand from design, sound quality, compatibility to detailed installation instructions, from there easily decide to choose the right speaker for your project.
The OBT 611 ceiling speaker has a compact circular design, 230mm speaker diameter, 155mm depth and 200mm ceiling hole requirement - very suitable for popular plaster ceilings today. The speaker housing is made of high-quality ABS plastic with fire resistance, the aluminum mesh is coated with off-white electrostatic paint to help limit dirt and stains after a long time of use.
The product uses a spring clamp mechanism to firmly attach to the ceiling, without the need for screws or cumbersome accessories, optimized for mass construction. This design not only brings high aesthetics but also helps reduce costs and installation time for projects with many speaker points.
Aesthetically, the speaker almost “disappears” from sight, leaving only a delicate mesh surface the same color as the ceiling, creating a synchronous and modern sound space.
With a frequency response range of 90Hz to 20kHz, the OBT 611 speaker delivers a full range of sound – from clear bass, clear midrange to clear highs. Rated power of 30W combined with sensitivity of 88dB SPL helps the sound spread evenly in a radius of up to 10 meters, responding well to both background music and voice broadcasting.
In actual testing in a 30-40m² space, only 1-2 OBT 611 speakers were needed to cover the sound evenly, without distortion or lack of sound in the border area. Thanks to the use of high-power coaxial speakers, the product ensures stable sound quality even when operating continuously in a public environment with high usage intensity.
The OBT 611 speaker is designed with a spring clamp installation method, allowing technicians to complete ceiling mounting in just 5-10 minutes per speaker. The installer only needs to drill a Ø200mm hole, connect the 100V audio wire, and then push the speaker into position.
The automatic clamping mechanism will hold the speaker fixed to the ceiling without the need for expansion screws or additional brackets. This installation method is not only quick and convenient but also minimizes errors when installing in series, extremely effective for projects that require 10-100 speaker points such as schools, shopping malls or office buildings. Not having to drill large holes or perform complicated construction helps reduce labor costs and risks when working at height.
Using 100V input voltage, OBT 611 speaker is fully compatible with public sound systems (PA System), easy to pair with zone amplifiers such as TOA, DB, OBT or Bosch. Thanks to the high impedance feature, users can pull the wire tens of meters long without worrying about voltage drop or signal loss.
This is a great advantage when deployed in projects with many different music areas such as waiting rooms, reception areas, meeting rooms or long corridors. The simple yet flexible pairing ability makes the device adaptable to many different audio requirements, from soft background music to clear public announcements.
The OBT 611 ceiling speaker is made from moisture-proof and heat-resistant materials, so it can be used for a long time in high humidity environments such as dining rooms, airy hallways or covered balconies. The aluminum mesh is coated with anti-oxidation paint, preventing rust and dirt from sticking for a long time.
The speaker body is made of fireproof ABS plastic, which is not only durable but also ensures fire safety according to construction standards. In many projects that have been implemented, the device has operated continuously for 8-10 hours/day for many years without any technical errors or sound quality degradation, proving its outstanding durability and product life of up to more than 10 years.
OBT 611 speakers are suitable for installation in systems such as offices, coffee shop sound, restaurant sound, hotels, showrooms or shopping malls. With a sophisticated ceiling design and a sound coverage of up to 10 meters, this product ensures even sound distribution without affecting the interior layout. It is an ideal choice for public address systems or soft background music.
Yes, the OBT 611 ceiling speaker operates on a 100V voltage system so it needs to be matched with power amplifier (PA amplifier) has 100V output. Using the right amplifier helps the speaker operate stably, protects internal components and ensures the best sound performance.
Normally, an OBT 611 speaker can effectively cover a radius of 8-10m. For a room of about 40m², you should arrange from 2 to 4 speakers, depending on the ceiling height and purpose of use (listening to background music or voice broadcasting). Reasonable distribution will help the sound to be more even and clear.
Entirely possible. Ceiling speakers The OBT 611 is designed with a moisture-proof ABS plastic speaker body and a powder-coated aluminum grille, which helps it operate well in high humidity environments. However, to ensure long-term durability, it should not be installed in a place that is directly exposed to water or rain.
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