New Alpha Series speakers make signature Infinity performance remarkably inexpensive. Injection-molded Polypropylene woofers provide a strong foundation of bass and midrange frequencies, and PEI Balanced dome tweeters complete the full-range sound with crisp, high-end frequencies. Speakers are remarkably transparent at the top with vocals, horns and strings and deliver big bass with plenty of slam. There are Five Alpha models for easy installation in any vehicle, whether it’s a truck, compact or limo. In addition to passing demanding reliability and environmental testing, all speakers are individually voiced by some of the world’s best transducer engineers to authenticate the Infinity sound.