KICKER 51KSC404 KS Series 4" 2-Way Coaxial Speakers – 75W RMS

Upgrade your factory sound system with the KICKER 51KSC404 KS Series 4-Inch Coaxial Speakers. Designed to deliver premium audio performance in a compact package, these speakers combine impressive power handling, smooth frequency response, and exceptional installation flexibility.

The KS Series features internally dampened polypropylene woofer cones paired with durable rubber surrounds to produce accurate midrange detail and strong midbass response while minimizing distortion. Premium silk dome tweeters provide natural, smooth high frequencies, delivering a refined listening experience without harshness, even at higher volumes.

Engineered with a shallow mounting depth and minimal tweeter protrusion, the KSC404 is designed to fit a wide range of factory speaker locations while maintaining excellent sound quality. High sensitivity and efficient design allow these speakers to perform exceptionally well with both factory head units and aftermarket amplifiers.

Whether you're replacing factory speakers or building a complete audio upgrade, the KSC404 offers outstanding sound quality, reliability, and value.

Key Features

• 4-inch (100mm) 2-way coaxial speakers
• 75 Watts RMS power handling
• Premium silk dome tweeters for smooth, detailed highs
• Internally dampened polypropylene woofer cones
• Durable rubber surrounds for improved longevity
• High sensitivity design for excellent efficiency
• Thin-mount profile for easy installation
• Compatible with factory and aftermarket systems
• Natural midrange reproduction and enhanced bass response
• Designed to fit behind most factory grilles
• Excellent OEM speaker replacement upgrade

Specifications