Cadence Acoustics Q552 200W 5-1/4" 2-Way Q-Series Coaxial Car Speakers 5.25" Q Series 2-Way Car Speakers Power Handling: Peak: 200 watts per pair / RMS: 80 watts per pair Polypropylene cone with Rubber surround 1/2" semi-dome PEI tweeter 4 ohms impedance