Kicker CS Series 4-Inch (100mm) Coaxial Speakers

Upgrade your vehicle's factory audio system with the Kicker CS Series 4-Inch Coaxial Speakers (CSC4 / CS4). Engineered for high acoustic performance, reliable power handling, and universal drop-in fitment, these 2-way coaxial speakers provide remarkable vocal clarity, defined mid-range response, and crisp treble without requiring custom fabrication.

Designed specifically to replace restrictive, muddy factory paper-cone dash, door, or rear-pillar speakers, the Kicker CS Series features rigid polypropylene cones, ribbed UV-treated surrounds, and ultra-compact zero-protrusion neodymium tweeters that easily clear shallow OEM grilles and tight dashboard apertures.

Key Features & Benefits:

• Defined Vocal Clarity & Mid-Range: Lightweight polypropylene cones paired with ribbed, UV-treated polyester foam surrounds deliver smooth frequency response, high sensitivity, and precise cone control even in extreme automotive cabin temperatures.
• EVC™ (Extended Voice Coil) Technology: Allows greater linear excursion and superior thermal heat dissipation, delivering clean, uncompressed sound reproduction and enhanced power endurance.
• Near-Zero Tweeter Protrusion: Specially engineered with ultra-slim, balanced-dome PEI neodymium tweeters that sit nearly flush with the woofer frame, eliminating clearance issues behind shallow factory grilles.
• Crisp, Detailed Highs: 1/2-inch (13mm) PEI balanced-dome tweeters provide extended high-frequency extension and accurate instrument separation without harsh, fatiguing distortion.
• High-Efficiency & Easy to Drive: High-sensitivity design allows these 4-inch drivers to run efficiently off modest factory radios or aftermarket head units while comfortably handling power from dedicated external amplifiers.
• Rigid Stamped Steel Baskets: Heavy-gauge stamped steel frame design provides a stable foundation for the motor structure with perimeter venting to keep internal voice coils cool during long playback sessions.

Ideal Applications:

• Factory Dash & Upper Door Replacements: Perfect drop-in replacement for factory 4-inch speakers located on upper dashboards, front door corners, or center channels.
• Compact Cars, Bakkies & Classic Cruisers: Ideal space-saving audio upgrade for single-cab bakkies, classic vehicles, or compact hatchbacks where mounting depth and diameter are strictly limited.
• Rear Fill & Pillar Locations: Excellent for restoring balanced sound staging when fitted to rear pillar cavities, roof linings, or parcel shelves in SUVs and passenger cars.

Tech Tip:

Because 4-inch speakers naturally focus on high and mid-range frequencies, use your head unit’s High-Pass Filter (HPF) set around 80Hz–100Hz. This filters out sub-bass frequencies the small cone cannot reproduce, allowing the speaker to play noticeably louder, cleaner, and free of distortion.

Product Specifications: