12“ / 300 mm subwoofer with aluminum die-cast basket and extremely stiff Kevlar/paper sandwich cone in a compact vented enclosure

Subwoofer with extremely stiff Kevlar / paper sandwich cone and long-excursion rubber surround with stitching for highest mechanical rating Enclosure completely made from MDF boards Wall thickness up to 28 mm and additional cross-bracing for minimal enclosure resonance Particularly large-sized bassreflex tunnel with flow-optimized funnels at each end for minimum static noise Extremely hard-wearing felt outer surface with embroidered HELIX logo Solid screw terminals Loudspeaker protection thanks to sturdy metal holders