Ground Zero GZPK 16SQ

Diameter of midwoofer 165 mm / 6.5? Mounting diameter of midwoofer 143,5 mm / 5.65? Mounting depth of midwoofer 68 mm / 2.68? Voice coil of midwoofer 36 mm / 1.42? Cone of midwoofer Alu-ceramic Dustcap / Phaseplug of midwoofer Alu-ceramic Basket of midwoofer Aluminium cast Magnet of midwoofer Ferrit Power handling WRMS 130 W Power handling W peak 210 W Impedance 4 Ohm SPL 90 dB Frequency response 30 - 3000 Hz.