KICKER 51KSC404 - 4" 2-Way Coaxial Speakers

Experience immersive audio with the Kicker 51KSC404 2-Way Coaxial Speaker System. Designed for seamless installation in a wide range of domestic and import vehicles, its ultra-thin profile and integrated crossover deliver concert-level clarity while fitting neatly behind factory grilles.

Featuring a 4" polypropylene woofer/midrange with a durable rubber surround and 1/2" Neodymium silk-dome tweeters, the 51KSC404 produces rich, balanced sound in a compact design—making it the perfect upgrade for your vehicle’s audio system.

• Ultra-thin design for easy installation behind factory grilles
• 4" polypropylene woofer/midrange with rubber surround
• 1/2" neodymium silk-dome tweeters for smooth sound
• Mounting depth of 1-3/16" (46mm)
• Includes 3-hole mounting adaptor rings for versatility
• Pre-perforated mounting tabs for customisable patterns
• Recommended amplifier power: 15 - 75 Watts RMS
• Peak power handling of 150 Watts
• Sensitivity: 88dB 1W/1M
• Frequency response: 60 Hz - 20 kHz
• Nominal impedance: 4-Ohms