Key Feature: *Dedicated subwoofer systems *800w, with Dual 18-in LF, optimally vented *Engineered to work with other TL Series system *For portable use or permanent installation three-way full range system Applications: 1>. Clubs, bars and restaurants 2>. Concert halls 3>. Live sound in places of worship 4>. For extensive LF reinforcement application Specification: * Frequency Response (+3 dB): 42 Hz - 500Hz * Sensitivity (1w/1m): 99 dB SPL * Long-term SPL: 128dB * Maximum SPL: 131 dB * Nominal Impedance: 4 ohms * Power rated: 800 watts * Peak Power handling: 1600 watts * Dimensions (H x W x D): 700 mm x 117 mm x 630 mm * Enclosure Material: 18mm MDF * Surface Finished: Black catalyzed polyurethane paint * Grille: 1.5mm black perforated steel framed * Low Frequency Driver: LA18100200TL, 2X18" 100mm voice coil, 200mm magnet * Input Connectors: Neutrik NL4MPX2