Helix P 12W 12" Subwoofer

HelixSKU: P12W

Price:
Sale price£209.99

Description

P 12W

12" / 300 mm subwoofer with aluminum die cast basket and extremely stiff Kevlar / paper sandwich cone, optimized for use in a compact vented enclosure

There are only a few manufacturers who understand the art of improving an already excellent basis. HELIX has optimized the new woofer with loving attention to detail and included elements of the legendary SPXL 12 in the high-precision series. The rubber surround is not only sewn to the cone, it is also firmly screwed to the basket using the machined mounting ring. The cone itself a Kevlar / paper-sandwich design  is also new and stiffer than before to withstand even the strongest impulses without warping.

  • Extremely stiff Kevlar / paper sandwich cone
  • Oversized voice coils with an impressive winding height for maximum electrical power handling and high linear excursion
  • Large magnet systems for low Qts, ideal for compact bass-reflex enclosures
  • Double-vented voice long-stroke coils for minimized compression effects
  • Aluminum diecast basket with diamond cut surround mounting ring
  • Solid screw terminals

Features

Power handling RMS / Max 400 / 800 Watts
Impedance 4 Ohms
Voice coil diameter 76 mm
Voice coil winding height 25 mm
Max. linear excursion +/- 8.5 mm
Cone area 511 cm
Moving mass 173 g
DC resistance 3 Ohms
Resonance frequency 27 Hz
Mechanical Q factor 3.81
Electrical Q factor 0.27
Total Q factor 0.25
Equivalent air volume 72 L
Voice coil inductance 1.79 mH
Force factor 18.1 Tm
Efficiency 1 W / 1 m 89 dB
Outer diameter 313 mm / 12.3
Cutout diameter 282 mm / 11.1
Mounting depth 142 mm / 5.6


Recommended enclosure
Ported box
Vented net volume 50 L
Port diameter 10 cm
Port area: 78 cm
Port length 28 cm
Port tuning frequency 34 Hz

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