Upgrade your car audio system with this premium Alpine bundle! Elevate your driving experience with the Alpine KTA-450 4-Channel Power Pack Amplifier, delivering 45W RMS x 4 power output in a compact design of 7” W x 3.5” H x 1.25” D. The Dynamic Peak Power technology provides a big power boost during dynamic musical passages, and the amplifier comes with a Power Stacking bracket for easy mounting. Plus, installation is hassle-free with no need for extra power wires. Enhance your sound further with the Alpine S2-S50 5.25" Coaxial Speaker Set, Hi-Res Audio Certified for exceptional performance. With a combination of Poly Propylene, Glass Fiber, and Mica Cone materials, these speakers offer high output and low distortion for a clean and accurate audio experience. The HAMR Surround technology ensures powerful and accurate bass notes, and the speakers are compatible with the KTE-S50G Speaker Grille for added protection. Completing the package are the Alpine S2-S69 6x9" Coaxial Speaker Set, also Hi-Res Audio Certified for superior sound quality. Crafted with the same premium materials and HAMR Surround technology as the smaller speakers, the S2-S79 delivers impressive performance with its 260W peak power and 85W RMS power output. Protect your investment with the KTE-S69G Speaker Grille, while enjoying a frequency response up to 40kHz for Hi-Res audio reproduction. Upgrade your car's audio system with this Alpine bundle and enjoy powerful, clear sound quality that will transform your driving experience.