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Upgrade your factory sound system with the Kicker 51KSC6804 KS-Series 6x8" Coaxial Speakers. Designed for precision, clarity, and smooth frequency response, the KS-Series delivers detailed highs and powerful midbass performance in a slim, factory-fit design.
Product Overview2-Way Coaxial Speaker Design – Balanced sound with accurate mids and crisp highs.
Polypropylene Cone & Rubber Surround – Durable and internally damped for tight midbass response.
Silk-Dome Tweeters (3/4") – Produce smooth, natural high frequencies with exceptional detail.
High Power Handling – Handles up to 75 watts RMS (recommended 15–75W per channel).
Zero Tweeter Protrusion – Fits easily behind most factory grilles with no modifications.
Shallow Mount Depth – Less than 2.5 inches deep, ideal for OEM and aftermarket installs.
Speaker Size: 6x8 in (16x20 cm)
Design: 2-Way Coaxial
Woofer Material: Polypropylene Cone
Tweeter: 3/4 in (20 mm) Silk Dome
Impedance: 4 Ohm
RMS Power Handling: 75W
Peak Power Handling: 150W
Sensitivity: 90 dB (1W/1m)
Frequency Response: 45Hz – 21kHz
Mounting Hole Diameter: 5x7-3/16 in (182 mm)
Top Mount Depth: 2-1/4 in (57 mm)
Bottom Mount Depth: 2-5/8 in (67 mm)
Tweeter Protrusion: 0 in (1 mm)
Grilles: Not Included
High-power handling for dynamic sound reproduction
Smooth, detailed highs with silk-dome tweeters
Precision-tuned polypropylene cone for clear mids and deep midbass
Durable rubber surrounds for long-lasting reliability
Thin-mount design ensures compatibility with most factory openings
Authorized Kicker Dealer – Full manufacturer warranty and support
Fast & Free Shipping (USPS, UPS, or FedEx)
Ships within 1 Business Day from our North Carolina warehouse
Trusted 12-Volt and Car Audio Experts Since 1979