This bundle offers the ultimate audio upgrade with an Alpine KTA-450 4-Channel Power Pack Amplifier and a pair of Alpine R-Series speakers. The compact KTA-450 amplifier packs a punch with 45W RMS x 4 power output at 2 or 4 ohms. Its DPP technology doubles power during dynamic musical passages while measuring just 7” W x 3.5” H x 1.25” D for easy installation in tight spaces. No extra wires needed, making setup hassle-free. Features a Class D amplifier circuit, Power Stacking bracket, and more. The Alpine R2-S69C 6x9" R-Series Component Speaker Set delivers loud, clear sound with a center stage. Certfied Hi-Res Audio with up to 40kHz frequency response, this 2-way system offers a powerful 300W peak power and 100W RMS power. Features glass-fiber reinforced cones, hard-dome tweeters, and composite baskets. The Alpine R2-S652 6.5" R-Series Pro Component Speaker Set provides exceptional sound quality with a 2-way PRO design. Also Hi-Res Audio certified, it boasts a 300W peak power and 100W RMS power output. Features glass-fiber reinforced cones, hard-dome tweeters, die-cast aluminum baskets, and flexible PRO X-Over Networks. Upgrade your car's audio system with this high-performance bundle for an immersive listening experience.