Ground Zero GZHW 30XSPL-D1

High-Grade Technology Products of the HYDROGEN series match with the demands of highly sophisticated customers. Amazing performance, great sound quality and high SPL whenever required. The subwoofers have been developed to handle a huge amount of input power reaching extremely high bass levels, to be used successfully even under competition conditions. A matching 2-way component speaker system and a number of MINI amplifiers with compact dimensions for limited installation space complete this famous GROUND ZERO line-up. Features - High power 12” SPL subwoofer - Klippel® optimized - Efficient triple magnet - Massive aluminum cast basket - Reinforced paper cone - 3” copper voice coil - High-Roll sandwich surround - Double spider Technical data Model: GZHW 30SPL Diameter: 300 mm / 12″ Mounting diameter: 315 mm / 12.4“ Mounting depth: 198 mm / 7.8“ Voice coil: 75 mm / 3” copper voice coil Cone: Reinforced paper Power Handling: 3000 W SPL Power Impedance: 2 x 1 Ohm SPL: 85 dB Xmax: 45 mm / 1.77″ Fs: 35.4 Hz Qts: 0.44 Vas: 15.8 L / 0.56 cu.ft. Box recommendations : See owners manual.