Ground Zero GZIW 12XSPL-D2

- 12″ XSPL Subwoofer - Progressive 2-layer spider - Voice coil 63 mm / 2.5″ - Impedance 2 x 2 Ohm - Re 4.33 Ohm - Fs 32,5 Hz - Qms 10.76 - Qes 0.79 - Qts 0.73 - Vas 40.4 L - Le 2.48 mH - Mms 231 gr - Bl 15.9 - Xmax 34 mm / 1.34″ - Effiency ( SPL 1w / 1m ) - Power handling ( SPL ) 1000 Watts - Rec. amplifier power 500 - 1000 Watts - Outer diameter 310 mm / 12.2″ - Mounting cut out 285 mm / 11.22″ - Mounting depth 162 mm / 6.38″ Recommended enclosures: - Vented 45L net - Port 10cm / 4″, length 21cm - Bandpass ( 4th order ) 25L net sealed / 40L net vented - Port 10cm / 4″, length 11cm - Tuning frequency Fb 57 Hz -Bandwith 35 - 100 Hz.