Helix K 12W

Power RMS / max. P 300 / 600 Watt
Impedance Z 2 x 2 Ω
DC resistance Re 2 x 1.6 Ω
Resonance frequency Fs 32 Hz
Mechanical Q factor Qms 3.70
Electrical Q factor Qes 0.46
Total Q factor Qts 0.41
Compliance Cms 179 μm/N
Equivalent air volume Vas 66 L
Force factor B*I 13.7 Tm
Efficiency 1 W / 1 m SPL 90.0 dB
Cone area Sd 515 cm²
Moving mass Mms 134 g
Cone material Hand-scooped paper cone
Mechanical resistance Rms 7.33 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 316 mm / 12.44"
Installation diameter ø 286 mm / 11.26
Installation depth 144 mm / 5.67"

Recommended enclosure volumes
Sealed box
Net volume 18 L
Lower limiting frequency (-3dB) 49 Hz

Vented box
Net volume 30 L
Port diameter ø 100 mm / 3.94"
Port area 78 cm²
Port length 28 cm / 9.84"
Port tuning frequency Fb 39 Hz
Lower limiting frequency (-3dB) 39 Hz
Scope of delivery
1 x Subwoofer HELIX K 12W
1x Grille
1 x Gasket
1 x Data sheet