Overview：

The gradient beam DSP column speaker is based on in-depth research on space acoustics and exploration of sound wave radiation in the vertical and horizontal directions. By adding physical directional waveguides, it suppresses the generation of useless side beam and obtains the expected directivity.

In the horizontal direction, through physical structure design, two directional beams with different horizontal radiation angles are formed, which are respectively responsible for near-field and far-field sound field coverage. Each beam can adjust the sound pressure coverage intensity, and the asymmetric vertical radiation technology is processed through frequency division technology, and a gradual delay is implemented for the two beams of sound waves. It is combined with a specially designed acoustic structure to process each sound wave to produce an asymmetric vertical radiation pattern, forming a downward radiation angle, obtaining the final required time domain and amplitude, and providing consistent radiation sound pressure level. At the same time, it has a strong suppression effect of side beam effects, thereby improving the uniformity of spatial sound wave radiation, eliminating blind spots, and improving the clarity of speech amplification. It is especially used in spaces with long reverberation times. It has an anti-reverberation effect and can Increase speech intelligibility in reverberant environments.

This type of column speaker is widely used in large and medium-sized command centers, lecture halls, religious sites, airports, train stations, lobbies, convention and exhibition centers, museums, etc.

Features：

1. Use directional waveguide technology to suppress the generation of useless side beam and obtain the expected directivity.

2. Horizontal radiation angle gradient beam technology forms two directional beams with different horizontal radiation angles, which are respectively responsible for near-field and far-field sound field coverage. Each beam can adjust the sound pressure coverage intensity. According to the acoustic characteristics, the narrower the beam, the farther the projection distance, and the wider the beam, the wider the radiation surface, but the radiation distance is not far, so the 2 beams are set as: near field is 160 degrees, and far field is 100 degrees.

3. Asymmetric vertical radiation technology. In order to ensure a relatively uniform sound field in the front and rear fields, traditional sound columns use physical methods to slant the speakers downward for radiation during installation, but this affects the aesthetics of the speakers integrating into the space. In order to solve this problem, asymmetric vertical radiation technology is used to implement a gradual delay on the two beams of sound waves through electronic circuits, and combined with a specially designed acoustic structure to process each beam of sound waves to produce an asymmetric vertical radiation pattern. , forming a downward radiation angle, and greatly reducing the upward emission of sound, attenuating the acoustic reflection of the ceiling, obtaining the final required time domain and amplitude, and providing consistent radiation sound pressure level. At the same time, it has a strong inhibitory effect on side effects. Strong direct sound, clean and clear sound.

4. Special full-range 3.5-inch high-quality speakers are used in the far field, and 2-inch full-range speakers are used in the near field. The sound wave coupling is scientific and the sound quality is clear and transparent.

5. The wooden box has a slender shape and a pleasing structure. It is available in black and white and is highly integrated with the space environment.