WINCA car audio speakers utilize the latest in speaker technology for superior sound quality. We use top quality polypropylene cones which are known for their high damping qualities. This means they can have a controlled break-up, which results in a smoother high frequency roll-off. Our Flexmotion Butyl Rubber Surrounds give the speakers a smooth response with minimal distortion. For smooth and extended high frequency sounds we used high temperature PEI dome tweeters with ferrite magnets. The speakers are designed with superior SPL response and extremely high power handling making these perfect for use with the amp built into your receiver or with a high powered external amplifier. Due to their shallow mount design, these speakers fit in 97% of all vehicles.