Features: Enhances your auditory experience with our Subwoofer Woofer Membrane, to significantly boost bass sound for a more immersive experience. This replacement metal speaker offers a low resonance frequency for stable bass response for high fidelitied auditory system. Perfectly for audiophiles and DIY enthusiasts, this subwoofer is excellent choice to build or upgrades own sound systems. Whether you're installing it in a customizable auditory setting or replacing old speaker in your home theater, the ensures superiorsly sound. This bass speaker can be seamlessly integrated into various sound combinations, providing rich and immersive Auditory experiences. Specifications: Diameter about 78mm/3.07in Thickness about 15mm/0.59in Component: Aluminum/Black Glass Fibre/Yellow Glass Fibre Power: 40Watt Bass Speaker Impedance: 4Ohm Diagonaled centre mounting distance about 84mm/3.31in Adjacent corner centre mounting distance about 59mm/2.32inch Magnetic diameter about 70mm/2.76in Overall height about 60mm/2.36in Mounting depth about 56mm/2.2inch Opening about 68~74mm/2.68-2.91in Package Includes: 1PC 40Watt Bass Speaker note: There might be a bit color distortions due to different computer resolution There might be size errors due to different computer resolution