Alpine S2-S50 - Next-Generation S-Series 5.25" Coaxial Speaker Set - Newly redesigned and Hi-Res Audio Certified, the Next-Generation S-Series S2-S50 5” Coaxial Speakers offer a new standard in entry-level sound performance. Features - • Hi-Res Audio Certified • Poly Propylene, Glass Fiber, and Mica Cone Material • High-Amplitude Multi-Roll (H.A.M.R.) Surround • Integrated 3/4” Tweeters (Coaxial) • Compatible with KTE-S50G Speaker Grille (sold separately) • Woofer Size: 5” • Tweeter Size: 3/4” (Coaxial) • Maximum Peak Power: 170W • Maximum RMS Power: 55W • Frequency Response: 80Hz - 40kHz (Hi-Res) Alpine S2-S69 - Next-Generation S-Series 6x9" Coaxial Speaker Set - Newly redesigned and Hi-Res Audio Certified, the Next-Generation S-Series S2-S69 6x9” Coaxial Speakers offer a new standard in entry-level sound performance. Features - • Woofer Size: 6x9” • Tweeter Size: 1” (Coaxial) • Maximum Peak Power: 260W • Maximum RMS Power: 85W • Frequency Response: 65Hz - 40kHz (Hi-Res) • Hi-Res Audio Certified • Poly Propylene, Glass Fiber, and Mica Cone Material • High-Amplitude Multi-Roll (H.A.M.R.) Surround • Integrated 1” Tweeters (Coaxial) • Compatible with KTE-S69G Speaker Grille (sold separately)