MTX TDX35 Thunderdome 3.5-Inch 2-Way Coax Speakers 3-1/2" Thunder Dome-Axial Series 2-Way Coaxial Car Speakers, Peak: 100 watts per pair / 50 watts each RMS: 50 watts per pair / 25 watts each Extended low frequency reproduction for bigger, fuller sound, Concave cone design for improved offaxis response Polypropylene midwoofer cone material, Rubber midwoofer surround type, 20mm piezoelectric tweeter