Experience top-notch sound quality with the Alpine S-Series Speaker Bundle! This package includes the Alpine S2-S40 4" Coaxial Speaker Set and the Alpine S2-S65 6.5" Coaxial Speaker Set. The Alpine S2-S40 4" Speakers are Hi-Res Audio Certified and feature a unique cone material blend for lightweight construction, high output, and low distortion. With a maximum peak power of 140W and frequency response up to 40kHz, these speakers deliver accurate and natural sound. The HAMR Surround technology ensures powerful bass notes, making your audio experience immersive. Key Features of Alpine S2-S40: - Woofer Size: 4" - Tweeter Size: 3/4" (Coaxial) - Maximum Peak Power: 140W - Maximum RMS Power: 45W - Frequency Response: 97Hz - 40kHz - Hi-Res Audio Certified - Poly Propylene, Glass Fiber, and Mica Cone Material - High-Amplitude Multi-Roll Surround - Integrated 3/4” Tweeters Moving on to the Alpine S2-S65 6.5" Speakers, they are also Hi-Res Audio Certified and boast similar design elements like the cone material blend and HAMR Surround technology for accurate sound reproduction with a maximum peak power of 240W. These speakers come with an additional feature - compatibility with the KTE-S65G Speaker Grille for both visual enhancement and speaker protection. Key Features of Alpine S2-S65: - Woofer Size: 6.5" - Tweeter Size: 1" (Coaxial) - Maximum Peak Power: 240W - Maximum RMS Power: 80W - Frequency Response: 70Hz - 40kHz - Hi-Res Audio Certified - Poly Propylene, Glass Fiber, and Mica Cone Material - High-Amplitude Multi-Roll Surround - Integrated 1” Tweeters - Compatible with KTE-S65G Speaker Grille (sold separately) Upgrade your car audio system with the Alpine S-Series Speaker Bundle and enjoy exceptional sound quality with reliable performance and Hi-Res Audio Certification. Elevate your listening experience today!