33%
More about the product
The Kicker 51KSS6904 6x9-Inch Component Speakers are designed for those who want a powerful upgrade from factory audio systems. This set combines large woofers with precision tweeters to deliver clear, dynamic sound across all frequencies. The 6x9-inch polypropylene woofers feature tough rubber surrounds for durability and smooth bass response, even at high volumes. Their thin-mount design allows easy installation behind factory grilles, making them suitable for a wide range of vehicles.
A standout feature of the Kicker 51KSS6904 is its removable bullet-style phase plug. This can be replaced with a special adapter that allows the 25-millimetre silk-dome tweeters to rotate and tilt. This articulating tweeter pod provides superior off-axis performance and more system design options, ensuring balanced sound throughout the cabin. Four tweeter mounting options are included, offering flush, angled, and surface configurations for maximum flexibility.
The system includes compact external crossovers that simplify installation while maintaining accurate frequency distribution between the woofer and tweeter. These smaller crossovers are easy to mount in tight spaces without compromising audio quality. Grilles are also included for a clean, professional finish.
With a recommended power range of 15 to 150 watts RMS, the Kicker 51KSS6904 works best when paired with an amplifier to unlock its full potential. High power handling ensures dynamic sound without distortion at higher volumes. While these speakers deliver excellent clarity and imaging, they are not intended for extreme bass enthusiasts who may prefer adding a dedicated subwoofer.
Overall, the Kicker 51KSS6904 offers a strong combination of performance, durability, and installation flexibility. From the articulating tweeter design to the thin-mount woofers and compact crossovers, every detail is engineered for a premium listening experience without unnecessary complexity. This makes it an ideal choice for those seeking a noticeable upgrade from factory speakers with smooth highs, rich mids, and reliable durability.
Technical details
- Brand
- Kicker
- Warranty
- 24-months
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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.