HI-RES CERTIFIED Using “trickle-down” technology, inspired design, and performance cues from the Ultra-High-Resolution AlpineF#1Status system, the Next-Generation Alpine S-Series Speakers are now Hi-Res Audio Certified and able to reproduce up to 40kHz frequency response. This new benchmark in sound quality elevates the Next-Gen S-Series Speakers resulting in a more accurate and natural sound at an entry-level price point. CLEAN, ACCURATE AUDIO Crafted with a unique combination of Poly Propylene, Glass Fiber, and Mica Cone materials, the S2-S80C is designed for lightweight construction, high output, and low distortion, giving you a clean and accurate audio experience. HAMR Surround Alpine-exclusive High Amplitude Multi-Roll (HAMR) surround technology is integrated into the speaker design which allows for maximum cone movement, delivering powerful and accurate bass notes. Simplified Installation Engineered for versatility, these speakers offer seamless OEM fitment and simplified installation. With in-line crossovers, you can achieve optimal sound separation and precise tuning. The adjustable tweeters feature a flush mount housing that is removable allowing for installations in small OEM tweeter locations.