These full-featured transducers incorporate lower-cost ferrite drivers, inside/outside copper-clad aluminum wire-wound voice coils, weather-resistant impregnated paper cones, and a symmetrical inductance profile. The FMB Series is especially well-suited for two-way speaker enclosures. Features: Octo 500W Midbass Woofer Made of good quality material. Specifications: Size 8. Power 500W. Weight: 8 lbs.