Polyurethane, a substance categorized as a polymer, is a resilient and durable manufactured material that can take the place of paint, cotton, rubber, metal, or wood in thousands of applications across virtually all fields. It can be hard like fiberglass, squishy like upholstery foam, protective like varnish, bouncy like rubber, or sticky like glue. In the specific case of our cones, this material allows for maximum give that produces great sounding speakers that will last a long time.
Butyl rubber is a synthetic (man made) rubber and is valued for its chemical inertness, impermeability to air, and ability to endure or resist exposure to many types of weather fronts. Butyl rubber has applications from sports equipment to automotive parts, the medical industry and more. In this product they are used for the surrounds that connect the cone to the basket.Just like chewing gum, the butyl rubber surround in our speakers can take a significant amount of abuse without coming apart.
Our speakers are capable of higher or elevated temperature strength, as well as fatigue properties that will increase their performance and efficiency of heavy duty play time, through lower weight and higher operating temperatures.