Alpine S-S40 4″ 2-Way Car Coaxial Speakers S-Series

The S-Series delivers amazingly high performance for this class of speaker. They boast the world’s first use of a CFRP diaphragm Carbon Fiber Reinforced Plastic which has the ideal balance of hardness and light-weight for extremely clean and accurate sound. They also feature a larger voice coil than previous types for higher driving power and the same HAMR surround as used on the X-Series.Handles up to 140W peak power 45W nominal
Carbon fiber reinforced plastic woofer cone
Silk tweeter