Ground Zero GZUW 12SQ-D2

- 30 cm / 12? SQ Subwoofer - 600 WRMS - Rec. amplifier power 4-800 Watts ( rms ) - 2 x 2 ohm - 50 mm / 2? copper voice coil - Reinforced paper cone - Audiophile POLYCOT spider - Fs 39.8 Hz - Qms 14.38 - Qes 0.70 - Qts 0.67 - Vas 39.4L - Le 1.81 mH - Mms 159.4 gr - Bl 15.19 - Xmax 20 mm - Effiency 87.2 dB - Outer diameter 315mm - Mounting cut out 284mm - Mounting depth 157mm.