HELIX K 12W SUBWOOFER
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 K 12W 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!
Features
- Extremely stiff, hand-scooped paper cone
- Double ventilated voice coil for minimum compression effects and high power handling
- Long-excursion rubber surround for highest mechanical rating
- Very long linear excursion
- 2 x 2 Ohms dual voice coil for flexible system configuration
- Solid push terminals
- Powerful magnet system for compact vented enclosures
- Rugged magnet cover with HELIX lettering for perfect magnet protection
- Grille and gasket included in delivery
Technical data
| 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
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