12" / 300 mm high end SPL subwoofer with aluminum diecast basket and Kevlar / paper sandwich cone, optimized for use in vented enclosures

Concave PP dustcap with embossed HELIX logo Extremely stable Kevlar / paper sandwich cone Machined aluminum mounting ring for fixing the rubber surround Huge 100 mm flat wire voice coil with incredible 57.5 mm winding height on black aluminium former Rugged butyl magnet cover with HELIX lettering for perfect magnet protection Long-excursion rubber surround with double stitching for highest mechanical rating Torsion-free aluminum diecast basket with diamond cut Double nomex spider avoids non-linearities of the cone suspension Massive triple magnet system 3 x 3 x 100 oz (8,505 g) with chrome-plated machined pole plates Magnet size: Ø 220 x 75 mm