– Pink 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.