Ground Zero GZRW 300-D2 FLAT

Model High-Quality SPL Subwoofer Diameter 30 cm / 12″ Power handling (RMS) 450 Watts Impedance 2x 2 Ohms Efficiency 84 dB Power recommendation 200 – 800 Watts Voice coil 50 mm / 2″ copper Cone Paper sandwich cone Max. Excursion (Xmax) 30 mm / 1.18″ Mounting diameter 278 mm / 10.94″ Mounting depth 93 mm / 3.66″ Resonance frequency (Fs) 23.5 Hz Damping ratio (Qts) 0.44 Equiv. air volume (Vas) 60,2 L / 2.13 cu.ft.