High-end bassAre you building a reference-level system in your vehicle? Helix created their Precision Series subwoofers for the mobile audiophile. Built from hand-picked components and assembled in Germany, these subs will create detailed low-end that perfectly complements a high-performance speaker system. From the tight, plucky punch of a bass guitar to the solid thunk of a kick drum, youll be in sonic heaven with these subs. Built toughHelix was thinking a little outside the box when they designed the Precision P12W 12 subwoofer. They used Agave sisalana, an incredibly stiff natural fiber, coated in silk to create a lightweight, rigid cone that reproduces low frequencies with unerring accuracy. Combine this unorthodox cone with a seriously oversized voice coil, and you have a woofer that will handle up to 350 watts RMS without breaking a sweat. A big rubber surround takes a lot of abuse, while the die-cast aluminum basket wont add a hint of coloration to your bass. Dont be afraid to turn this sub up. Product highlights:12 subwoofer with 4-ohm voice coilsilk-coated Agave sisalana woofer cone with rubber surrounddie-cast aluminum basketfrequency response: not availablepower handling: 100-350 watts RMSpeak power: 700 wattssensitivity: 87.3 dBtop-mount depth: 5-9/16sealed box volume: 0.75 cu. ft.ported box volume: 1.50 cu. ft.warranty: 2 yearsMFR # P12WWhats in the box:Helix Precision P12W owners manual One 12 SubwooferRubber gasket (installed)Specification sheet (English/ German)