Cadence Acoustics QR572 150W 5" x 7"/6" x 8" 2-Way Car Speakers, Set of 2 5x7 / 6x8" 2-Way Car Speakers Power Handling: Peak: 150 watts per pair / RMS: 60 watts per pair Polypropylene cone with Rubber surround 1/2" semi-dome PEI tweeter 4 ohms impedance