Alpine S-S40 4" 2-Way Coaxial Speakers 45W RMS 140W Peak

The S-Series speakers use Alpine’s exclusive cone technology, Carbon Fiber Reinforced Polymer (CFRP), which is a high-strength, lightweight material. CFRP can be custom-formed so that its fibers align in the same direction as the curve and shape of the cone, thereby reducing resonant peaks and increasing the speakers’ mid-bass performance and dynamic range.\nThe S-Series speakers incorporate Alpine’s patented High-Amplitude Multi-Roll Surround (H.A.M.R.) for control and accuracy. The component models use a crossover with an in-line, passive design and reduced footprint, which contributes to easier installation.\nThe 1-inch silk dome is perfect for recreating pleasant upper range response without creating listening fatigue in the vehicle. The soft silk material ensures wide frequency response and durability for long term playback.