The Alpha Series speakers deliver Infinity branded performance at an amazingly low cost. Injection moulded polypropylene woofers provide a solid base for low and midrange, while PEI-balanced dome tweeters complement the full-range sound with crisp highs. Vocals, winds and stringed instruments in these speakers with powerful bass sound are unsurpassed due to the clarity of the sound of the upper range. All 5 Alpha models are easy to install in the cabin - whether it be a truck, a passenger car or a limousine. In addition to tests for reliability and the influence of external factors, all speakers are individually tuned by the best world engineers to create a unique Infinity sound.