Tweeter - A German-made Silk Dome Tweeter delivers warm treble with remarkable clarity and definition. Basket - The stamped basket offers a strong and rigid platform allowing for increased durability. Surround - Rubber has the ability to endure abuse without any sign of damage. It complements the whole structure of the speaker by allowing flexibility where it is most needed, without the wear and tear. Voice Coil - The 1-3/8" Voice coil is able to withstand high temperatures yet maintain its strength. This gives our speakers superior current distribution, effective heat dissipation and incredible power handling. Cone - The real Carbon Fiber provides a resilient and durable lightweight material that offers best in class sound quality with the advantage of long lasting material.