Technical data IK W8 DVC2 – 2 x 2 Ohms Power handling RMS / max. P 300 / 600 Watts Impedance Z 2 x 2 Ω DC resistance Re 2 x 1.6 Ω Resonance frequency Fs 37 Hz Mechanical Q factor Qms 3.56 Electrical Q factor Qes 0.46 Total Q factor Qts 0.41 Compliance Cms 262 μm/N Equivalent air volume Vas 17 L Force factor B*I 10.7 Tm Sensitivity SPL 89.0 dB @ 2.83V / 1m 86.0 dB @ 1W / 1m Cone area Sd 219 cm² Moving mass Mms 69 g Cone material Hand-scooped paper cone Mechanical resistance Rms 4.54 kg/s Voice coil diameter ø 50.8 mm Voice coil winding height 24 mm Max. linear excursion Xmax +/- 8.0 mm Outer diameter ø 213.5 mm / 8.40″ Installation diameter ø 182 mm / 7.17″ Installation depth 101 mm / 3.98″ Recommended enclosure volumes Sealed box Net volume 8 L Lower limiting frequency (-3dB) 50 Hz Recommended DSP settings Recommended ″self-define″ highpass filter with 50 Hz cut-off frequency and Q = 1.5, additional EQ filter 115 Hz / Q = 1.0 / -2.5 dB Vented box Net volume 8 L Port diameter ø 60 mm / 2.36″ Port area 28 cm² Port length 42 cm / 16.5″ (angled port) Port tuning frequency Fb 43 Hz Lower limiting frequency (-3dB) 45 Hz Recommended DSP settings Recommended ″self-define″ highpass filter with 43 Hz cut-off frequency and Q = 1.5, additional EQ filter 120 Hz / Q = 0.8 / -3.5 dB Scope of delivery 1 x Subwoofer HELIX IK W8-DVC2 1 x Grille 1 x Gasket 1 x Data sheet