Sky High Car Audio SHCA - C653 6.5" 3-Way Coaxial Speakers 210 watts, Premium Quality Full Range Car Speakers, Kevlar Cone, 4 ohm (Sold in pairs of 4 ohm speakers. ) This 6.5 inch Full Range Car Audio Speaker Takes 210 watts max and 70 watts RMS. 3-Way coaxial car speaker with 85db efficiency. These speakers will come to life with the power from your vehicles radio. Providing you with a full sound at high volume. The glass fiber kevlar reinforced cone is accurate and helps output higher volumes when lower power is available.