Ground Zero Hydrogen GZHW 30-D2

- Model High-Performance Subwoofer - Diameter 30 cm / 12? - Power handling (RMS/SPL) 1500 / 3000 Watts - Impedance 2x 2 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.