CL-61 - CDT Audio 6.5" 160W RMS 2-Way Component Speakers System CL-61 - CDT Audio 6.5" 160W RMS 2-Way Component Speakers System Power handling: 160 watt RMS at HPF 120Hz. Frequency response: 55Hz-20.000Hz. Impedance: 4 Ohm - 2 Ohm optional Mounting depth: 2.5"