Audiotec Fischer Helix K 12W


Do-it-yourselfers, here′s your chance to create your personal sub that perfectly fits into your car! From the technical point of view the two drivers K 10W and K12W are absolutely identical with the subwoofers that are installed in the K series enclosure subs. Just have a look at the Thiele/Small parameters and you will easily notice that those are designed for compact vented cabinets yet leaving plenty of ″headroom″ for designing your own preferred sound characteristic. If you prefer to play it safe, just choose the same net volume and port tuning frequency like our enclosure subs K 10E and K 12E for outstanding bass performance. So what are you waiting for? Start your ″tailor-made subwoofer project″ right now!

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Artikelnr: K 12W Kategori:


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

Mer information

Vikt 8 kg







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