CL-69SUB - CDT Audio 6x9" Mid/Subwoofers Stamped Steel Frame Carbon treated cone Rubber surround Diameter: 6X9" (150X230 mm) Sensitivity: 90.1 dB; Power Handling: 100 Watt RMS (100Hz high pass); Frequency Response: 45 ~ 4000 Hz; Nominal Impedance: 4 Ohms