Features Wide Frequency Response - 40-4KHZ , Covering a broad frequency range from deep lows to clear mid-bass, our subwoofers ensure you don t miss a single note.rubber Edge Cone - Superior flexibility allows the replacement subwoofer cone to move freely and accurately, resulting in precise and responsive bass performance.superior Build - Steel frame Endures high power levels and extended use. Better heat dissipation and maintain top-notch sound quality over time.easy Installation - Standard 10 inch size,mounting Depth 104mm, easy to install in a car door, speaker holes, under seat. Perfect for replacing bad speakers or upgrading from low powered Oem ones.Subwoofer Specification :Speaker Type: Woofer Speaker Frame: SteelWoofer Size: 10 InchPMPO Power: 600WRMS Power: 60WImpedance: 4 OhmRubber Edge Paper ConeVoice Coil: 2 Inch CCAWFrequency 40-4KHZSensitivity 86 dBMounting Depth 104mmMagnet Size: 30 OzMagnet Grade: Y30Package Include:2x 10 Inch Subwoofer