OSD Audio ICE530 5.25-inch Carbon-filled Polypropylene Woofer 100-Watt Water-resistant In-Ceiling Speaker Pair Woofer: 5 1/4" carbon-filled polypropylene woofer with rubber butyl surround Tweeter: 3/4" silk dome tweeter with ferro fluid cooled voice coil Power handling: 100W | Impedance: 8 Ohms Frequency Response 65Hz - 22kHz | Sensitivity 88db Cut Out Diameter: 6 5/8" | Unit Dimension: 8" diameter x 2 3/4" deep Shipping: This item does not ship outside the U.S