More about the product
The Kicker 51KSC4604 4x6-Inch Coaxial Speakers are designed to deliver clear, balanced sound in a compact size. Built for those upgrading factory audio, these speakers combine durable materials with a slim profile for easy installation. Each speaker features a polypropylene woofer cone that produces smooth midrange tones while resisting wear over time. The cone is supported by a tough rubber surround, which helps maintain accuracy and reduces distortion at higher volumes.
The 51KSC4604 uses a 2-way design with a silk dome tweeter for crisp, natural highs. This ensures detailed sound across different music styles, from vocals to instruments. With less than a 2-inch mounting depth and one millimeter tweeter protrusion, the KSC4604 fits almost any vehicle on the road today. Installation is straightforward, even in tight spaces, and grilles are included for a clean finish.
These speakers work best with 15 to 75 watts of recommended power, making them suitable for factory or aftermarket head units. The sensitivity rating of 88 dB ensures efficient performance without requiring excessive amplification. Their 4-ohm impedance makes them compatible with most car audio systems.
While the Kicker 51KSC4604 offers excellent clarity and improved detail compared to stock speakers, it is not designed for heavy bass. Pairing with a subwoofer is recommended for those seeking full-range sound. The shallow mounting depth and compact footprint make these speakers a practical choice for vehicles with limited space behind panels.
Overall, the Kicker 51KSC4604 provides a reliable upgrade for anyone wanting better audio quality without complex installation or large components. It combines quality materials, smart design, and easy fitment for a noticeable improvement in everyday listening.
Technical details
- Brand
- Kicker
- Warranty
- 24-months
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Whether you're shopping in store or online, we're here to guide you with honest, expert advice. Keep an eye out for our 'Bankstown Sound Recommends' callouts across product pages for real insights into the gear we trust and use ourselves, from the Bankstown Sound team.
Why Choose Bankstown Sound for Your Car Audio & Tech Upgrades
At our Bankstown Sound store and workshop in Sydney, our team ensures every car and auto audio installation and upgrade starts with an understanding of how you use your car. Our team works with you to understand your driving habits, the features you rely on, and the problems you’re trying to solve.
Most factory setups are built to broad standards and often lack the clarity or seamless connectivity required for how people actually drive. That’s why we focus on modernising your dashboard and audio performance based on how you use your vehicle.

