Ground Zero Hydrogen GZHW 20-D2

Model High-Performance Subwoofer

Diameter 20 cm / 8″

Power handling (RMS/SPL) 700 / 1500 Watts

Impedance 2x 2 Ohms

Efficiency 80 dB

Power recommendation 50 – 1500 Watts

Voice coil 63 mm / 2.5″ Copper

Cone Reinforced paper

Max. Excursion (Xmax) 40 mm / 1.57″

Mounting Ø 187 mm / 7.36″

Mounting depth 145 mm / 5.71″

Resonance frequency (Fs) 38.3 Hz

Overall quality (Qts) 0.381

Equiv. air volume (Vas) 4.77 L / 0.17 cu.ft.