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Product Code: Helix K12W
Availability: In Stock
£129.99
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Helix K12W Subwoofer 600W Max

The Helix K12W has 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 the 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! Or Sit back and relax we will professionally install it for you !

Core Features:

  • Extremely stiff, hand-scooped paper cone
  • 600W Max Power / 300W RMS Power
  • 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

Technical Specs

  • 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 - 316 mm / 12.44" 
  • Installation diameter - 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 - 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

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