When nothing but the loudest and clearest high frequencies matter, then the XPRO-4H Horn Tweeter is what you need. This super efficient Tweeter is loud and clear and will not only make your highs stand out, but it will be ear catching and give your system the attention it deserves. We use a combination of different combined technologies to deliver nothing but piercing and accurate highs. When combined with the XPRO-8/8CX or XPRO-65/65CX Mid-Range drivers, you will have the brightest and loudest mids and highs in your ride that can be heard for over a mile away. Now all you need is to add some PowerBass Subwoofers and you will be the Audio King of your city!