Power handling RMS / Max. P 150 / 300 Watt Impedance Z 1 x 2 Ω DC resistance Re 1 x 2.0 Ω Resonance frequency Fs 50 Hz Mechanical Q factor Qms 3.92 Electrical Q factor Qes 0.32 Total Q factor Qts 0.30 Compliance Cms 261 μm/N Equivalent air volume Vas 5.3 L Force factor B*I 12.3 Tm Sensitivity SPL 89.0 dB @ 2.83V / 1m 86.0 dB @ 1W / 1m Cone area Sd 123 cm² Moving mass Mms 37 g Cone material Hand-scooped paper cone Mechanical resistance Rms 3.04 kg/s Voice coil diameter ø 37 mm Voice coil winding height 18 mm Max. linear excursion Xmax +/- 6.0 mm Outer diameter ø 164.2 mm / 6.46″ Installation diameter ø 132.5 mm / 5.22″ Installation depth 74.3 mm / 2.93″ Recommended enclosure Vented box Net volume 7 L Port diameter ø 50 mm Port area 20 cm² Port length 34 cm (angled port) Port tuning frequency Fb 45 Hz Lower limiting frequency (-3dB) 43 Hz Recommended DSP settings Recommended ″self-define″ highpass filter with 45 Hz cut-off frequency and Q = 1.2 additional EQ filter 80 Hz / Q = 1.0 / +1.0 dB Scope of delivery 1 x Subwoofer HELIX IK W6-DVC2 1 x Grille 1 x Gasket 1 x Data sheet