Clarion CMG1622R 6.5-Inch 100-Watt Marine Speakers (Pair) (Discontinued by Manufacturer) 100 Watts Maximum Power Handling.Outside Dimension (mm): 177,Cutout Dimension (mm): 146,Mounting Depth (mm): 59 6-1/2-inch Mica-Injection Polypropylene Woofer Cone 1-1/4-Inch Cone Tweeter Grilles Included Rubber Mounting Gasket.RMS Input (Watts) : 40.Impedance:4 ohms