6x9 Speakers: 6x9 2016 DS Series 3-Way Car Speakers. Power Handling: Peak: 720 watts / RMS: 180 watts per pair. Recommended Power Range: 6 - 90 watts RMS per channel. 2 zero protrusion midrange woofer. Rigid polypropylene cone material. Polyester foam speaker surround. Stamped steel basket. EVC (Extended Voice Coil) technology. 1/2 zero protrusion polyetherimide balanced dome tweeter. Neodymium Tweeter magnet. Grilles included. Top-mount Depth: 3.25 Cutout Dimensions: 5.625 x 8.4375 4 ohms impedance. Frequency Response: 30 - 20,000 Hz Sensitivity: 92dB.