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GRX Series

GRX728S


  • GRX728S is a  dual 18" extended low frequency subwoofer system with Push-Pull Type design. This structure helps to reduce harmonic distortion, and provides continuously power output during long term music playing.
    GRF engineer has selected twin-wired voice coil type woofer for GRX728S as it offers superior long term power handling without traditional heat loss and ageing. Compare with the traditional single ring voice coil, twin-wired voice coil offset inductance of itself basically, and improved mid frequency of the unit.

    The GRX728S cabinets are built from a combination of 18mm, strong, light-weight poplar plywood made structurally sound with tongue and groove joints,and protected by  durable finish. Grilles are made from dent-resistant 16 gauge steel and handles are made from light-weight glass-filled nylon for added strength and durability. It is suitable for fixed installation or live performance applications.

    Type

    GRX728S

    Frequency response

    35Hz~150Hz(±3dB)

    Power handling

    1200W AES

    Sensitivity

    100dB

    Max. SPL peak

    130dB/1m continuous

    Dispersion

    90°Hx50°V

    Components

    LF:2x18"

    Nominal impedance

    4 ohms

    Input connectors

    2XNL4 

    Enclosure material

    18mm Birch Plywood

    Finish

    Obsidian Durable Finish

    Grill

    Powder coated ,black steel with acoustically transparent black screen backing

    Dimension(HWD)

    540x1200x720 mm

    Net weight(kg)

    105kg

     

      

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