These Boss 6.5-Inch 300-Watt 3-Way Chaos Exxtreme Car Audio Speakers can handle 300 watts of maximum power and 150 watts RMS power per pair. The Boss CH6530 speakers feature and aluminum voice coil, stamped steel basket, a poly-injection cone, and a rubber surround. They have 100 Hz to 18 kHz frequency response and 90 dB sensitivity. They include a poly injection woofer cone and rubber surround. Each speaker includes a tweeter and 1-inch polyimide dome midrange. These come with a detachable grill for multiple applications.