Ultra High Efficiency Pro Audio 6.5″ Component System 6.5″ PRO Audio Midrange Component / 500 W Sold as a kit: 4 6.5" Midrange Driver Speakers 2 Tweeters 2 Crossovers FEATURES: Ultra High Efficiency Pro Audio 6.5” Component Speakers Anti-Resonance Die Cast Aluminum Baskets Shallow Mount Application Paper cones with Cloth Edge Accordion Surrounds Custom Embossed Protective Grilles 1” (25mm) Aluminum Dome Pro Tweeters 12db Passive X-Over networks