Ground Zero Hydrogen GZHW 30-D1

GROUND ZERO HYDROGEN series meet the requirements of even the most demanding customers. All models are characterized by an astonishing performance, great sound quality and extremely high sound pressure whenever required. These 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 but also for everyday music reproduction. Model High-Performance Subwoofer Diameter 30 cm / 12″ Power handling (RMS/SPL) 1500 / 3000 Watts Impedance 2x 1 Ohms Efficiency 85 dB Power recommendation 1000 – 3000 Watts Voice coil 75 mm / 3″ copper Cone Reinforced paper Max. Excursion (Xmax) 45 mm / 1.77″ Mounting Ø 284 mm / 11.18″ Mounting depth 198 mm / 7.80″ Resonance frequency (Fs) 39.1 Hz Overall quality (Qts) 0.56 Equiv. air volume (Vas) 17.6 L / 0.62 cu.ft.