4) New BOSS CH6520 6.5" 2-Way 500W Car Coaxial Audio Speakers Stereo Red 6 1/2" New Boss 6.5" 500 Watt 2-Way Car Speakers 500 Watt Total Pick Power Handling (250 Watt Each pair) Impedance: 4 ohms Each 30 oz. Magnet Structure 100Hz-18khz Frequency Response