Power handling RMS / max. P 750 / 1,500 Watts Recommended amplifier power RMS from 300 Watts Impedance Z 2 x 2 Ω DC resistance Re 2 x 1.9 Ω Resonance frequency Fs 43 Hz Mechanical Q factor Qms 5.30 Electrical Q factor Qes 0.49 Total Q factor Qts 0.45 Compliance Cms 123 μm/N Equivalent air volume Vas 8.5 L Force factor B*I 15.5 Tm Sensitivity SPL 86 dB @ 2.83V / 1m 83 dB @ 1W / 1m Cone area Sd 222 cm² Moving mass Mms 115 g ( Tuneable ) Cone material Fiberglass-Mylar honeycomb cone Mechanical resistance Rms 5.8 kg/s Voice coil diameter ø 63 mm Voice coil winding height 32 mm Max. linear excursion Xmax +/- 12 mm Outer diameter ø 226 mm / 8.90″ Installation diameter ø 183 mm / 7.21″ Installation depth 114.5 mm / 4.51″ Sealed box Minimum: Net volume 6 L Bassreflex-box Minimum: Net volume 13 L TM = Tuning Mass Scope of delivery 1 x Subwoofer IQ W8-DVC2 1 x Installation gasket 2 x Mounting material 1 x Grille 2 x Grille removal tool 3 x Tuning mass (TM) 1 x Data sheet