CXS64 V.2 - Image Dynamics 6.5" 4-Ohm Component Speaker System Voice coil (Single or dual) Single | Voice coil imp (ohms) 4 or 2 | Voice coil Diameter (inches/mm) 1.435.56 | Sensitivity 1 watt / 1 meter 90dB | Recommended Power Range (watts) 25 to 125 Mounting Diameter Tweeter(inches/mm) 1.97/50.04 | Mounting Depth Tweeter(inches/mm) .8/20.32 Mounting Diameter Midbass(inches/mm) 5.625 | Mounting Depth Midbass(inches/mm) 3.0/76.2 Power: 25-250 watts | Impedance: 4 Ohms | Sensitivity: 90dB | Frequency Response: 65Hz-25kHz