DB BLT 355A Bluetooth Ceiling Speaker

DB BLT 355A Bluetooth Ceiling Speaker is a dedicated speaker line that brings a smooth and convenient wireless audio experience to modern living and working spaces.

The device integrates Bluetooth V4.0 technology, operates stably in the 2.4GHz ISM frequency band, with 2-channel RMS power up to 40W, helping to reproduce detailed, energetic sound within a coverage range of up to 10 meters.

The product is especially suitable for applications such as ceiling installation in cafes, spas, homes, offices or showrooms, where a neat, unobtrusive but effective and flexible sound system is needed. This article will analyze in detail the technical configuration, connectivity, sound quality, system compatibility and practical maintenance tips, helping you understand the value that DB BLT 355A brings.

Powerful capacity - Vivid sound quality for every space

The DB BLT 355A is designed to deliver outstanding audio performance in a compact configuration. With a flexible 2CH x 20/30/40W RMS power, the speaker can operate stably in spaces from 15 to 35 square meters, ideal for living rooms, offices or treatment rooms.

Wide frequency response 20Hz – 20kHz (±3dB) allows detailed reproduction of sound ranges from deep bass to high treble without distortion or breakup at high volume.

Operating impedance from 8 ohms down to a minimum of 4 ohms allows the device to be easily matched with many digital amplifiers or integrated systems. The combination of precise acoustic structure and high load capacity creates a sound effect that is evenly distributed, vivid and clear in any installation space.

Bluetooth 4.0 Connection – Easy Wireless Music Playback

Equipped with Bluetooth V4.0 system, DB BLT 355A provides fast, stable and energy-saving connection with transmitting devices such as smartphones, tablets or laptops.

With a maximum RF output power of 8dBm (Class 1) and 79 RF channels operating on the 2.4GHz ISM band, the speaker easily connects wirelessly at a maximum distance of 10 meters, completely eliminating the need for traditional wiring.

This is a big advantage for spaces that require high aesthetics and need to limit the presence of audio cables. The ability to transmit stable signals, low latency, and support for popular codec standards helps ensure that sound quality is not degraded when playing music continuously via Bluetooth.

Aesthetic ceiling design – Easy to install and space saving

The outstanding strength of the DB BLT 355A lies in its compact and minimalist ceiling design, which makes it easy to integrate into the interior architecture without losing the overall aesthetics. The speaker can be fixed to the ceiling with a smart spring clamp system, without requiring additional sub-frames or complicated brackets.

The lightweight design combined with the optional AC/DC wiring system (AC100-240V or DC12–20V) allows users to flexibly install in areas using AC power or stable DC power systems. In particular, the speaker face is designed to be tightly sealed, helping to prevent dust and limit the effects of humidity - a common factor in ceiling or plasterboard ceiling environments.

Stable performance and energy saving

DB BLT 355A is not only powerful in sound but also optimal in power consumption. With a typical operating current of only 40mA, the device operates stably and continuously for many hours without overloading the internal electrical system.

Thanks to the compatibility of two power supply modes - AC100–240V at 50/60Hz frequency and DC12–20V @ 5A, the product can be easily integrated into smart building systems or professional sound in large buildings.

Reducing power consumption not only saves operating costs, but also prolongs the life of internal components, especially the signal amplifier circuit and Bluetooth receiver.

Compare with other ceiling speakers in the same segment

Compared to models in the same price range and function, DB BLT 355A excels in many key points. While most Bluetooth ceiling speakers only have a power of 10-20W, this model provides up to 40W per channel, ensuring powerful volume without distortion.

In addition, other lines often use Bluetooth Class 2 (5dBm), while DB BLT 355A uses Class 1 (8dBm) for higher stability. The sealed design, dust and moisture resistance is much better than models without a clear IP rating, helping the speaker operate more durably in humid environments such as restaurants, public toilets or light saunas.

In addition, with a selling price of only about 2 million VND, this product offers a superior performance/price ratio compared to high-priced imported lines that do not support integrated Bluetooth.

Instructions for proper use & maintenance

To keep the DB BLT 355A speaker working durably and maintaining sound quality over time, you need to ensure some basic principles of use and maintenance. First, it should be installed in a well-ventilated location, away from heat sources or places with humidity exceeding the standards for electronic devices.

When using, adjust the volume appropriately, do not leave the power at maximum for a long time, avoid overloading the RMS power causing distortion or circuit burn. Periodically, use a soft cloth to wipe the speaker surface, avoid spraying water or using strong detergents.

If the speaker shows signs of poor Bluetooth connection, check the firmware or connection distance. For DC power supply, make sure to use the correct current and voltage adapter, avoid using chargers of unknown origin.

Frequently asked questions about DB BLT 355A Bluetooth Ceiling Speaker

Does the DB BLT 355A ceiling speaker need a signal wire?

No, the DB BLT 355A speaker does not need an audio signal wire because it has integrated Bluetooth V4.0 connection. You just need to supply power (AC or DC), then connect wirelessly to your phone, laptop or music player to use. This is the ideal solution for spaces that need to minimize wires and maintain high aesthetics.

What area should use 1 DB BLT 355A speaker?

One ceiling speaker DB BLT 355A with maximum RMS power of 40W/channel can cover rooms from 15m² to 25m² well. If the space is larger or has many dead corners (eg: restaurant, spa), you should combine 2 or more speakers and arrange them evenly along the ceiling so that the sound spreads evenly.

Are the speakers compatible with Vietnam's power grid?

Yes. The speaker supports AC 100–240V – 50/60Hz power, fully compatible with the civil power grid in Vietnam (220V – 50Hz). In addition, the speaker also supports DC 12–20V power, very convenient for public address system smart or central DC powered projects.

Is DB BLT 355A waterproof? Can it be used outdoors?

The speaker has a sealed design, limiting dust and moisture, but there is no official IP waterproof standard. Therefore, the product should only be installed indoors or in a covered place, avoiding direct contact with rain, strong steam (steam room) or prolonged strong sunlight.