Helix E 12W 12" flat subwoofer

E 12W

Very shallow 12” / 300 mm subwoofer with aluminum diecast basket, honeycomb membrane and 2 x 2 Ohms dual voice coil

The new esprit subwoofers really come into play when space is scarce but the desire for rich bass sound is at the top of the list. Although the black fiberglass coating on the outside is the only thing that makes them look different to their predecessors, what’s on the inside is completely new. Dual voice coils with an impedance of 2x2 Ohms predestine them for use in compact, sealed enclosures with the best in impulse response. Their extremely flat structural shape allows for forms never dreamed of before for the enclosure design.

  • 2 x 2 Ohms dual voice coil for more flexible speaker configurations
  • Extremely stiff honeycomb membrane with fiberglass coating
  • Massive and rigid aluminum diecast baskets
  • Very low mounting depth for shallow subwoofer constructions
  • Massive gold-plated terminals
  • large maximum cone excursions thanks to wide rubber surround
  • T/S parameters optimized for use in compact sealed enclosures
Power handling RMS / Max 400 / 600 Watts
Impedance 2 x 2 Ohms
Voice coil diameter 50.8 mm
Voice coil winding height 18 mm
Max. linear excursion +/- 5.5 mm
Cone area 471 cm²
Moving mass 141 g
DC resistance 2 x 1.6 Ohms
Resonance frequency 38 Hz
Mechanical Q factor 5.75
Electrical Q factor 0.65
Total Q factor 0.51
Equivalent air volume 39 L
Voice coil inductance 1.61 mH
Force factor 12.8 Tm
Efficiency 1 W / 1 m 87 dB
Outer diameter 319.5 mm / 12.6“
Cutout diameter 282.5 mm / 11.1“
Mounting depth 89.5 mm / 3.5“
Recommended enclosure  
Sealed box  
Sealed net volume 25 L
Ported box  
Vented net volume 35 L
Port diameter 8 cm
Port area: 50 cm²
Port length 20 cm
Port tuning frequency 38 Hz
Speakers & Subs
  • Subwoofers
  • 12" (30cm)

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Helix E 12W 12" flat subwoofer

  • Brands Helix
  • Product Code: E12W
  • Availability: Available
  • £199.99