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  • Network Beam Steering Asymmetric Vertical Speaker
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Network Beam Steering Asymmetric Vertical Speaker

    GB4224PW

    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, the generation of useless side lobes is suppressed and the expected directivity is obtained.In the horizontal direction, through a combination of physical structure design and DSP signal processing, two directional beams with different horizontal radiation angles are formed, respectively responsible for sound field coverage in the near field and far field. The sound pressure coverage intensity of each beam can be adjusted, and the near field can be adjusted through DSP to achieve horizontal directivity adjustment, achieving the effect of hitting wherever you point in the horizontal direction.


    Asymmetrical vertical radiation technology processes two sound beams with a gradual delay using digital DSP technology. Combined with a specially designed acoustic structure, each beam is individually processed to create an asymmetrical vertical radiation pattern with a downward radiation angle. This produces the desired time-domain characteristics and amplitude while maintaining a consistent radiated sound pressure level.
    The technology delivers strong suppression capabilities, enhancing the uniformity of spatial sound wave distribution, eliminating listening blind spots, and improving speech amplification. It significantly boosts sound clarity—particularly in spaces with long reverberation times—by effectively reducing reverberation and increasing speech intelligibility in highly reflective 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.


    Product features


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

    2. Horizontal radiation angle gradient beam technology forms 2 directional beams with different horizontal radiation angles, which are respectively responsible for sound field coverage in the near field and far field. Each beam can adjust the sound pressure coverage intensity. According to the acoustic characteristics, the beam 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 three beam settings are: 160 degrees for the near field beam, and 100 degrees for the far field.

    3. Near-field beam directivity variable technology can realize horizontal radiation angle adjustment through DSP, which can radiate targeted areas, while ineffective areas can reduce radiation, such as reducing wall reflections and improving the interference and reverberation time of useless sound waves in space. Long, direct sound is obtained directly, improving speech clarity.

    4. Asymmetric vertical radiation technology. In order to ensure that the front and rear sound fields are relatively uniform, traditional sound columns use physical methods to slant the speakers downward during installation. However, this affects the aesthetics of the speakers integrating into the space. To solve this problem, Using asymmetric vertical radiation technology processing, a gradual delay is implemented on the 2 beams of sound waves through digital DSP technology, 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 reduce the upward emission of sound, attenuate the acoustic reflection of the ceiling, obtain the final required time domain and amplitude, and provide consistent radiation sound pressure level, while having a strong side-breaking effect. Strong direct sound, clean and clear sound.

    5. AOIP network audio input technology supports mainstream network protocols.

    6. Analog signal and digital signal input are optional, and mixed input is also possible.

    7. Network management settings, the device can be managed and set in the network by directly connecting to the switch.

    8. Powerful algorithm, intuitive interface, dedicated DSP management software, easy to set up, can perform beam control, 7-band equalization adjustment, high and low pass slope filtering, input level control, mute, preset settings, save and recall, system settings and other functions.

    9. Built-in multi-channel high-stability digital power amplifier.

    10. Dedicated 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.

    11. 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.


    Technical Parameters


    Acoustic specifications

    Frequency response

    90 Hz - 20 kHz

    Maximum sound level

    114dB

    Horizontal coverage angle (gradient)

    160°、 100°

    Vertical coverage angle (asymmetrical)

    0°— -45°

    Typical range distance

    14 meters

    Maximum range distance

    21 meters

    Dynamic Range

    105 dB

    Speaker unit

    2 x 3.5" full range speakers, 4 x 2" full range speakers

    Sensitivity

    1W/1 m  92 dB


    Electronic parameters

    Audio input

    1 line

    Normal input level

    0 dBu (2.19 Vpp)

    Maximum input level

    10 dBu (6.92 Vpp)

    Type

    Balance/AOIP

    Impedance

    47 kOhms at 1 kHz


    Power amplifier

    Type

    PWM (Class D)

    Total power output

    300 W

    Power efficiency

    92%

    THD+N

    0.1% at 10 Wrms/channel

    Input signals

    balance

    Channel protection

    Overheating protection (>120°C), output short circuit

    DSP Module

    DSP processor

    56-bit DSP 145 Mhz

    Sampling Rate

    48 kHz

    Signal processing

    High-low pass

    Input EQ (7-band)

    Volume: (-100 dBFSbis 0 dBFS)

    Delay (1 ms)

    Input signal detection

    Control Module

    CPU

    32-bit, 24MHz

    Network Interface

    UDP

    Processor activities

    DSP start

    Remote input channel control

    Network control

    PSU-Module

    Communication scope

    90 VAC to 264 VAC (universal input)

    Input frequency

    47 Hz to 67 Hz

    Efficiency

    92.5% at 230 VAC

    Dante Module

    Network cable

    10BASE-T: Category 3, 4, 5 unshielded twisted pair (100 meters)

    100BASE-TX: Category 5 and above unshielded twisted pair (100 meters)

    AOIP

    2 channels, plug and play, automatically discover devices

    Rate

    100M/1000M bps

    Sampling rate

    48K

    Data format

    24 bit

    Minimum delay

    1MS

    General parameters

    Dimension

    W*H*D125*500*178 mm

    Weight

    5.6 kg

    Box material

    Plywood

    Color

    black, white

    Temperature range

    0°C to 40°C (32°F to 102°F)


    GB4224PW

    Corporate Advantages

    • Source Factory

      Source Factory

      16 years of focus on conference system R&D and production factory, following international standards.

    • OEM/ODM

      OEM/ODM

      OEM and ODM customized services to meet individual needs.

    • Self-developed Stack

      Self-developed Stack

      Strong R&D capabilities, continuous optimization and iteration, based on superb.

    • Core Intellectual Property

      Core Intellectual Property

      50 patents and more than 200 intellectual property rights.

    • Service and Support

      Service and Support

      1 year comprehensive warranty, providing responsive support to ensure customer satisfaction.

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    Honors and Certifications

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