Ground Zero Hydrogen GZHW 25-D2

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 25 cm / 10″ Power handling (RMS/SPL) 1200 / 2500 Watts Impedance 2x 2 Ohms Efficiency 83 dB Power recommendation 800 – 2500 Watt Voice coil 63 mm / 2.5″ Copper Cone Reinforced paper Max. Excursion (Xmax) 45 mm / 1.77″ Mounting Ø 238 mm / 9.37″ Mounting depth 178 mm / 7.01″ Resonance frequency (Fs) 41.8 Hz Overall quality (Qts) 0.487 Equiv. air volume (Vas) 8.53 L / 0.30 cu.ft.