HD-690CF.2 - CDT Audio 6" x 9" 125W RMS 2-Ohm Carbon Fiber Subwoofer HD-690CF.2 - CDT Audio 6" x 9" 125W RMS 2-Ohm Carbon Fiber Subwoofer Power handling:125WRS (250WPk) Impedance 2 Ohm Dimensions: 6.625"X 9.25" Mounting depth: 3.5"