The DS 6-3/4-Inch Coaxial Speakers are a perfect upgrade for great sound in your car doors. A drop-in coaxial upgrade with the flexibility to fit nearly any vehicles doors for a vast improvement over factory sound. Using zero protrusion PEI tweeters ensures you get every bit of clarity you need, without interfering with factory grilles. Paired with a DX amplifier, the sound becomes more powerful, realistic, and louder. These DS speakers work best with 60 watts of recommended power. See below for more details.