Polk Audio DB691 6-by-9-Inch 3-Way Speakers (Pair, Silver) Pair of 6x9-inch 3-way component speakers Equipped with a polymer/mica composite cone with rubber surround Maximum input power: 125 Watts RMS, 4 Ohms, 93 dB efficiency Equipped with one 1-inch liquid-cooled silk-polymer composite dome tweeter and a neodymium magnet Durable butyl rubber surround stands up to the stress of extreme temperatures, sunlight and time