Enhance your vehicle's audio system with this comprehensive bundle featuring the Alpine KTA-450 4-Channel Power Pack Amplifier and the Alpine S2-S50 Next-Generation S-Series 5.25" Coaxial Speaker Set. The Alpine KTA-450 amplifier offers a significant power boost in a compact size of 7” W x 3.5” H x 1.25” D, making it perfect for tight spaces like glove boxes or motorcycles. With Dynamic Peak Power technology, it delivers impressive sound quality with a double power increase during dynamic moments. The Class D amplifier circuit ensures efficiency, and it comes with a Power Stacking bracket for convenient mounting. Specifications include a power output of 45W RMS x 4 at 2 or 4 ohms, along with a dynamic peak power output of 100W RMS x 4. The amplifier has a THD of less than 0.1% at rated power and offers a frequency response of 15Hz - 50kHz. This package includes the KTA-450 amplifier, input/output/power wire harness, universal bracket set, and more. The Alpine S2-S50 Coaxial Speaker Set features Hi-Res Audio Certification, offering a refined sound experience with up to 40kHz frequency response. Crafted with Poly Propylene, Glass Fiber, and Mica Cone materials, these speakers provide high output and low distortion. The HAMR Surround technology ensures powerful bass notes, while the integrated 3/4” tweeters deliver clear highs. Key specifications include a maximum peak power of 170W and maximum RMS power of 55W. The S2-S50 speakers are designed for reliability and accurate audio reproduction. To enhance both aesthetics and protection, they are compatible with the KTE-S50G Speaker Grille (sold separately). Elevate your car audio experience with the Alpine KTA-450 4-Channel Power Pack Amplifier and S2-S50 Coaxial Speaker Set. Enjoy compact yet powerful amplification and high-resolution sound performance in a sleek design, perfect for upgrading your vehicle's audio system.