New BOSS Chaos CH6940 6x9" 500W 4-Way Car Coaxial Audio Stereo Speakers Red Provides 500 Watts of MAX Power (pair) Impedance: 4 ohms; Frequency Response: 50Hz-20khz; Sensitivity: 92 dB @ 1 Watt/1 Meter Features a 1" Polyimide Dome Tweeter, (2) 1/2" Piezo Tweeters, 2" Polyimide Cone Midrange, and 1.25" High Temperature Aluminum Voice Coil Constructed of a Poly Injected Cone with Foam Surround Mounting Depth: 3.2"