HELIX K 12E bass reflex subwoofer 12" (300 mm).

HELIX K 12E bass reflex subwoofer 12" (300 mm).

Compact in size but huge in sound. 
Lots of technical finesse was necessary to fulfil the demands of SPL junkies and audiophile music lovers at the same time. 
Rock-solid cones made from hand-scooped paper in combination with heavy-duty voice coils easily transform the power of your amplifier into loads of sound pressure without neglecting neither acoustical details nor sonic precision.
Fortunately the K subwoofers are no wasters of precious trunk space at all thanks to their compact cabinet dimensions.

By the way - the double voice-coil design offers more flexibility when selecting an appropriate power amp. 
No matter if 1 x 4 Ohms, 2 x 2 Ohms or 1 x 1 Ohm - these "deep bass warrantors" make any configuration easily possible.

Features:
- Compact, space-saving enclosure design.
- Long-excursion woofer with extremely stiff, handscooped paper cone.
- Double ventilated voice coil for minimum compression effects and high power handling.
- Voice coil impedance configurable via connection terminal - 2x2 Ohms or 1x4 Ohms.
- Solid metal grille for perfect woofer protection.
- Lead wires woven into spider.
- Exponentially shaped port minimizes air flow noise.