DSP1500 Series Phased Array Directional Column Speaker Solution for Conference Room

When the traditional column speaker needs to change the radiation direction (sounding direction) of the main beam, the installation angle (inclination) of the sound column speaker must be adjusted mechanically. The traditional sound column speaker needs to rely on processing into different shapes such as convex curved surface, concave curved surface and bevelled surface to control the directivity, and the directivity cannot be adjusted. The phased array sound column speaker is a sound column product that adjusts the radiation direction of the main beam through electronic technology and digital processing technology (DSP). It can change the direction of the main beam of the sound column speaker through the PC or mobile phone APP control interface under the condition of fixed vertical installation of the sound column speaker, which overcomes the shortcomings of the traditional sound column installation, such as unsightly appearance and difficulty in free adjustment.

Eight custom-designed 4-inch speakers are driven by an eight-channel amplifier powered by a precision switch-mode power supply that DSPA1500 can be connected to dedicated passive speakers and a dedicated subwoofer for different scenario applications. DSP1500 phased array sound column speaker uses our dedicated web-based phase-control adjustment controller operation interface to achieve excellent and accurate directivity adjustment through a built-in excellent phased beam adjustment algorithm.

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System Connection Diagram

Functional Structure -DSP1500 3-brand Phased Array Speaker With Subwoofer

Apart from the active phrased array column speaker DSP1500 series, a dedicated passive column speaker and subwoofer are also designed to be used with the DSP1500 series to achieve applications in different scenarios, such as conference rooms, theatres

Active phased array column speaker: Built-in 4”x8 Full-rand Speaker Units and 8-channel digital amplifier module driver, each speaker unit power of 35W, the total power of 280W.

Passive column speaker： consists of 4”x8 Full-rand Speaker Units,

each speaker unit power of 35W, the total power of 280W.

Active Subwoofer: single 12-inch speaker unit, power is 300W/4 Ohm

and other occasions.

Highlights Of DSP1500 Array Column Speaker

With highly advanced Digital Directivity Control (DDC), it allows you to control the vertical directivity pattern and aims the sound to the required position, addressing the problem that portion of the sound of a normal PA speaker will bounce off the wall, the ceiling and other surfaces that can reflect back the sound.

Sound Field Distribution of Phased Array Directional Loudspeaker

As for normal PA speakers, the sound can not be all directly heard by the audience because part of it will bounce off the wall, the ceiling and other surfaces that can reflect back the sound, which will reduce the energy of the sound. To address this problem, we have designed the three-band directional phased array column speaker, which adopts highly advanced Digital Directivity Control (DDC), that can allow you to control the vertical directivity pattern and aim the sound to the required position. The phased array column speaker support two audio inputs, one of which can be divided into two audio beam direction, and the other audio input that forms a 3-band beam pointing. Three-band beam. The 3-band sound beam can exist at the same time, or two different kinds of music can be played at the same time. The operation can be set up directly through the PC and mobile web interface.

For example, DSP1500 is installed in a 30-meter straight venue, focusing downwards at 6 meters, 15 meters, and 26.5 meters, respectively. Directivity diagram at 5.5M for wall-mounted installation:

Direct Setting Operation of PA and mobile phone web interface

DSPPA Unique software control of DSP 1500 allows installers to shape the sound by setting elevation, vertical opening angle and focus distance. System status is continuously monitored.