30px

  • Complex Acoustic Environments DSP Column Speaker
  • video

Complex Acoustic Environments DSP Column Speaker

    GB4244PB

    Overview


    The Gradient Beam DSP Column Speaker is developed through extensive research into room acoustics and the behavior of sound wave propagation in both vertical and horizontal planes. By integrating physical directional waveguides, it suppresses unwanted side lobes and achieves precise directivity.

    In the horizontal direction, the speaker employs a combination of acoustic design and DSP processing to generate three independent directional beams with different radiation angles, covering near-field, mid-field, and far-field zones. Each beam offers adjustable sound pressure intensity, while the near-field beam can be DSP-controlled for flexible horizontal directivity—delivering sound exactly where it is needed.

    In the vertical direction, advanced asymmetric radiation is achieved through DSP-driven gradual delay processing, combined with a specially engineered acoustic structure. This creates a downward radiation angle while significantly reducing upward emissions, thereby minimizing ceiling reflections, enhancing spatial sound uniformity, and improving clarity. The design provides stronger direct sound, eliminates blind spots, and delivers excellent speech intelligibility even in reverberant environments.

    With its innovative beam control, elegant slim enclosure, and powerful DSP functions, this column speaker is ideally suited for use in:

    • Command centers

    • Lecture halls

    • Religious venues

    • Airports & train stations

    • Lobbies & exhibition centers

    • Museums and other public spaces



    Product features


    • Directional Waveguide Technology – Suppresses unnecessary side lobes and ensures accurate directivity.

    • Horizontal Gradient Beam Control – Three adjustable beams provide optimal coverage:

    Near field: 160° wide coverage

    Mid field: 100° balanced coverage

    Far field: 60° narrow beam for long-range projection
    (Narrower beams project farther; wider beams provide broader but shorter coverage.)

    • DSP-Controlled Near-Field Adjustment – Targeted horizontal coverage reduces wall reflections and reverberation, enhancing clarity.

    • Asymmetric Vertical Radiation – DSP-based gradual delay with acoustic structure ensures downward projection, uniform coverage, reduced ceiling reflections, and clear direct sound without tilting the speaker.

    • Dante Network Audio Input – Compatible with mainstream network protocols.

    • Flexible Input Options – Supports analog, digital, and mixed signal inputs.

    • Network Management – Direct connection to a switch allows full device management and configuration.

    • Comprehensive DSP Processing – Beam control, 7-band EQ, filters, level control, mute, presets (save/recall), system setup via intuitive software.

    • Built-in High-Stability Digital Amplifier – Multi-channel Class D design with high efficiency and protection.

    • High-Quality Drivers – 4 × 3.5" full-range drivers for mid/far field, 4 × 2" full-range drivers for near field; precise coupling ensures clear and transparent sound.

    • Elegant Slim Design – Wooden cabinet in black or white, blending seamlessly into modern architectural spaces.


    Technical Parameters


    Acoustic Specifications

    ParameterValue
    Frequency Response90 Hz – 20 kHz
    Maximum SPL116 dB
    Horizontal Coverage (gradient)160° / 100° / 60°
    Vertical Coverage (asymmetrical)0° to –45°
    Typical Range Distance18 m
    Maximum Range Distance28 m
    Dynamic Range116 dB
    Speaker Units4 × 3.5" full-range, 4 × 2" full-range
    Sensitivity (1W/1m)92 dB

    Electronic Parameters

    ParameterValue
    Audio Input1 line
    Normal Input Level0 dBu (2.19 Vpp)
    Max Input Level10 dBu (6.92 Vpp)
    Input TypeBalanced / AOIP
    Impedance47 kΩ @ 1 kHz

    Power Amplifier

    ParameterValue
    TypePWM (Class D)
    Total Power Output300 W
    Efficiency92%
    THD+N0.1% @ 10 W rms/channel
    ProtectionsOverheat (>120°C), short-circuit

    DSP Module

    ParameterValue
    Processor56-bit DSP, 145 MHz
    Sampling Rate48 kHz
    ProcessingHP/LP filters, 7-band EQ, volume, delay (1 ms), signal detection

    Control Module

    ParameterValue
    CPU32-bit, 24 MHz
    Network InterfaceUDP
    FunctionsDSP start, remote channel control

    Power Supply Unit

    ParameterValue
    Input Voltage90–264 VAC (universal)
    Input Frequency47–67 Hz
    Efficiency92.5% @ 230 VAC

    AOIP Module

    ParameterValue
    Network Cable10BASE-T Cat 3/4/5, 100BASE-TX Cat 5+ (≤100 m)
    Channels2, plug & play, auto discovery
    Rate100M / 1000M bps
    Sampling Rate48 kHz
    Data Format24-bit
    Minimum Latency1 ms

    General Parameters

    ParameterValue
    Dimensions (W × H × D)125 × 710 × 178 mm
    Weight8 kg
    Cabinet MaterialPlywood
    ColorsBlack
    Operating Temperature0°C – 40°C (32°F – 102°F)


    GB4244PB

    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.

    0px

    0px

    0px

    30px

    Honors and Certifications

    Related Products

    Get the latest price? We will reply as soon as possible (within 12 hours)