VB28 Line Array Dual 18-inch Subwoofer – GVSAUDIO Skip to content
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VB28 Line Array Dual 18-inch Subwoofer

System Type: Dual 18-inch line array subwoofer

Description

Frequency Response: 28Hz–400Hz (±3dB)
Sensitivity: 107dB (1W/1m, ±2dB)
Rated Power: 1200W
Peak Power: 4800W
Nominal Impedance: 4Ω
LF Drivers: 18″ × 2 (Driver specs: 220mm magnet, 100mm voice coil)
Max SPL: 133dB
Dimensions: 1000 × 550 × 750 mm (W × H × D)
Weight: 70.5 kg

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VB Series System Overview
■ A High-Performance Auxiliary Low-Frequency Speaker System, Featuring High Sound Pressure Level, Low Reverse Resonance Frequency, And Solid, Elastic Low-Frequency Characteristics.
■ A Subwoofer Designed For Line Source Modules And Coaxial Systems, Allowing The System’s Lowest Operating Frequency To Extend Down To 30Hz.
■ The Specially Designed Driver, Combined With Dual Bass-Reflex Ports And A Dedicated Airflow Guide Chamber, Forms A Tuned Bass-Reflex Cabinet, Providing Excellent Performance, High Sensitivity, Low Thermal Compression, And Low Distortion.
■ The Compact And Integrated Assembly Allows It To Couple Well With Full-Range Flown Configurations.
■ The Independently Developed High-Performance And Stable Driver Unit Features A Unique Aerodynamic Structure And Multi-Point Surface Design, Providing More Even Sound Field Coverage.
■ The Entire Series Provides Excellent Frequency Response.
■ It Features High Efficiency, Low Thermal Compression, And Low Distortion. Even Under High Operating Temperatures, The Bass-Reflex Port Enables Laminar Airflow And Reduces Turbulence Noise, Ensuring Highly Accurate Sound Reproduction. The Ergonomic Rear Handles Make Transportation More Convenient.
■ The Low-Frequency Reflex Channel Features An Optimized Profile, Which Improves Airflow And Reduces Turbulence Noise. Even Under Very High Sound Pressure Levels, These Combined Characteristics Help Ensure Sound Quality In Both Accuracy And Musicality.
■ The High-Strength Steel Grille Is Covered With An External Dustproof Mesh Fabric, Which Effectively Reduces Odd-Order Harmonics, Enhances Visual Appearance, And Protects The System Components During Use.
■ The Cabinet Is Made From Selected High-Density Russian Imported Birch Plywood, Bonded With Imported Wood Adhesive And Reinforced With Corner Bracing. It Is Carefully Crafted By Skilled Technicians And Finished With A Popular Water-Based Speckled Wear-Resistant Spray Coating For Long-Lasting Durability.
■ Widely Used In Theaters, Multi-Function Halls, Churches, Schools, Medium And Large Stadiums, Medium And Large Outdoor Performances, Speech Reinforcement, And Other Applications.

System Data
System Type: Dual 18-inch line array subwoofer
Frequency Response: 28Hz–400Hz (±3dB)
Sensitivity: 107dB (1W/1m, ±2dB)
Rated Power: 1200W
Peak Power: 4800W
Nominal Impedance: 4Ω
LF Drivers: 18″ × 2 (Driver specs: 220mm magnet, 100mm voice coil)
Max SPL: 133dB
Connectors: 2 × NL4 Speakon
Enclosure Material: 18mm BB-grade plywood
Finish: Black textured, wear-resistant paint
Dimensions: 1000 × 550 × 750 mm (W × H × D)
Weight: 70.5 kg