Kicker CS speaker package - Two pairs of Kicker CS Series 6x8 Component Speakers 40CSS684 Peak: 450 watts per pair / 225 watts each RMS: 140 watts per pair / 70 watts each EVC (Extended Voice Coil) technology for high thermal handling Durable, Ribbed UV-Treated Polyester Foam speaker surround for precise linear excursion Frequency response: 40-21,000 Hz