New Reference speakers are designed to deliver Infinity’s signature sound in more vehicles. They feature edge-driven textile tweeters for smooth, clear highs and the larger models ofter an adjustable tweeter output level control for optimization based on installation location. Oversized Plus One™ woofers offer more surface area for higher bass output and enhanced midrange performance. Plus our newly engineered basket is optimized to fit most factory openings. Available in a range of standard sizes—3″, 4″, 5-1/4″, 6-1/2″, 6″ x 8″ and 4″ x 6″ coaxial, 6″ x 9″ 3-way, and 5-1/4″, 6-1/2″, and 6″ x 9″ component—they’re the perfect upgrade from factory speakers.