L-Solution Passive Sub Woofer Speaker 18 Use Concert Sound System

L-Solution Passive Sub Woofer Speaker 18 Use Concert Sound System. High Performance Audio: 18-inch passive subwoofer with 42-115Hz frequency response and 101dB sensitivity. Durable Wood Enclosure: Constructed with 18mm Birch Plywood and black painting for robust stage use. Low Distortion Output: Total Harmonic Distortion (THD) is less than 0.005% for clear sound. Flexible Customization: Offers OEM/ODM services, full customization, and logo printing options. Multiple Certifications: Certified with CE, RoHS, and CCC standards for global compliance. Versatile Applications: Ideal for stadiums, theaters, conference halls, and commercial venues. High Power Handling: Supports 1200W RMS and 4800W Peak power with 135dB max SPL. Quality Control: Defective rate kept below 0.2% with 100% visual and function inspection.