Power RMS / max. P 300 / 600 Watts
Impedance Z 2 x 2 Ω
DC resistance Re 2 x 1.6 Ω
Resonance frequency Fs 36 Hz
Mechanical Q factor Qms 4.50
Electrical Q factor Qes 0.43
Total Q factor Qts 0.39
Compliance Cms 218 μm/N
Equivalent air volume Vas 34 L
Force factor B*I 12.3 Tm
Efficiency 1 W / 1 m SPL 88.0 dB
Cone area Sd 333 cm²
Moving mass Mms 91 g
Cone material Hand-scooped paper cone
Mechanical resistance Rms 4.56 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 262 mm / 10.31"
Installation diameter ø 232 mm / 9.13"
Installation depth 126 mm / 4.96"

Recommended enclosure volumes
Sealed box
Net volume 12 L
Lower limiting frequency (-3dB) 53 Hz
Recommended DSP settings “Self-Define” Highpass: 45 Hz / Q = 1.5;
EQ Filter: 120 Hz / Q = 1.0 / -3 dB

Vented box
Net volume 19 L
Port diameter ø 70 mm / 2.76"
Port area 38 cm²
Port length 22 cm / 8.66"
Port tuning frequency Fb 43 Hz
Lower limiting frequency (-3dB) 43 Hz
Recommended DSP settings “Self-Define” Highpass: 37 Hz / Q = 1.5;
EQ Filter: 115 Hz / Q = 0.7 / -2 dB
Scope of delivery
1 x Subwoofer HELIX K 10W
1 x Grille
1 x Gasket
1 x Data sheet