The DSC6504 6-1/2-Inch Coaxial Speakers are the ideal upgrade for your car doors. Using zero protrusion PEI tweeters ensures you get every bit of clarity you need, without interfering with factory grilles. A stamped steel framework supports a ribbed, UV-treated foam surround and rigid polypropylene cone with EVCTM (Extended Voice Coil) technology, for the best sonic quality. These speakers will handle 60 watts RMS and 240 Watts Max per speaker. They include 1/2 tweeters to really hit those high notes with stiff polypropylene cones to hit low bass notes as low at 40 Hz. These speakers are a drop-in coaxial upgrade with the flexibility to fit nearly any vehicles doors for a vast improvement over factory sound.