Features:Wide Frequency Response - F0-3kHz. Covers a broad bass range from deep lows to clear mid-bass, ensuring no note is missed.rubber Edge Cone - Flexible design for accurate, responsive bass performance.superior Build - Steel frame endures high power, ensuring durability and top-notch sound quality.easy Installation - Standard 15-inch size for easy replacement or upgrade in various locations.Subwoofer Specification :Size : 15 InchType : SubwooferRMS Power : 220Max Power : 450WMagnet : FerriteMagnet Size in Oz : 40 OzImpedance in Ohm : 4Frequency Response : F0-3KHZSensitivity(1M/W) : 91.0 DBVoice Coil Size : 2”Voice Coil Material : Asv Copper Voice CoilCone Material : Foam Edge Paper ConeMounting Depth : 140MMFrame Material : IronTerminal Type : High Durable Steel CardboardSPL : 91.0 DBWeight : 2.6kgHole to hole Distance : F370-8-F6.5MMPackage Information :2x 15 Inch Subwoofer