ELAC Varro Reference Subwoofers: Total Performance Begins with DesignThis powerful subwoofer series features an advanced 2-Layer High Excursion (HEX) design, providing a dynamic low-end response and room-filling sound. The high-quality amplification technology delivers incredible power with professional-grade audio clarity, so you get every punch and beat with maximum impact. Crafted with carefully selected materials, this subwoofer is engineered for remarkable sound quality and excellent durability. A stylish and modern design makes it a beautiful addition to any home. Get ready to experience music and movies like never before!Advanced Woofer DesignTotal Performance Begins With Design.Our High Excursion (HEX) surround technology allows for greater extrusion and less distortion.However, to facilitate the extra movement, longer voice coils were required. Meaning our Aluminum Sandwich technology was too heavy.To improve efficiency, our drivers were designed with cutouts arranged in the paper cone prior to gluing to the aluminum cone.The Die Cast backrest ensures strength under load, and a large magnet completes the custom driver.Custom Designed AmplifierAll seven models utilize BASH technology.The discrete implementation of these tracking amplifiers allows for maximum voltage swing, providing all the power that is needed and additional dynamic power throughout the entire operating range of