Kicker designed their KS Series speakers to be a substantial upgrade from factory speakers or older, deteriorating aftermarket speakers. The 51KSC6804 6″×8″ speakers feature polypropylene woofers that provide a satisfying, natural sound, paired with 3/4″ silk dome tweeters that deliver smooth reproduction of your music’s vocal and instrumental details.
These speakers offer impressive performance even when powered by a factory radio, thanks to Kicker’s highly sensitive design that produces substantial volume from low-powered factory systems. If you’re not planning to swap out your factory radio or add an amplifier, these speakers will still deliver a noticeable improvement over your original speakers.
The 51KSC6804 speakers feature a low-profile design with reduced mounting depth and minimal tweeter protrusion, making them compatible with most factory locations. While these speakers are described as 6″×8″, they also fit many 5″×7″ applications, making them versatile for various Ford, Mazda, and other vehicle applications.
Product Highlights
- 2-way car speakers (pair)
- 6″×8″ polypropylene woofer cone with rubber surround
- 3/4″ silk dome tweeter for smooth high-frequency detail
- Highly sensitive design works well with factory radios
- Low-profile design with minimal tweeter protrusion
- Also fits many 5″×7″ applications
- Designed to fit behind factory grilles or panels
Package Contents
- Two 2-way speakers
- Two 11″ lengths of speaker wire (tinned wire on one end and female quick slides on the other)
- 4 red plastic wire caps
- Eight 1-1/8″ screws
- Quick-start guide (English/Spanish/German/French)
Physical Specifications
- Speaker Size: 6″×8″ (also fits many 5″×7″ applications)
- Frame Dimensions: 5.48″ × 7.575″
- Top-mount Depth: 2-5/16″ (2.282″)
- Bottom-mount Depth: 2-11/16″
- Mounting Height: 0.373″
Performance Specifications
- Power Handling: 75 watts RMS
- Peak Power Handling: 150 watts
- Frequency Response: 45-21,000 Hz
- Sensitivity: 90 dB (1W at 1 meter)
- Impedance: 4 ohms
Speaker Components
- Woofer: 6″×8″ polypropylene cone
- Woofer Surround: Rubber
- Tweeter: 3/4″ silk dome
- Tweeter Magnet: Neodymium
- Design: 2-way (woofer plus tweeter)
Installation Notes
- Grilles not included (designed to use factory grilles)
- Compatible with both 6″×8″ and many 5″×7″ factory openings
- Low-profile design for easy installation in factory locations
- Pre-attached crossover network
Special Features
- High-sensitivity design for good performance with low-powered factory radios
- Silk dome tweeter for smooth high-frequency reproduction
- Moisture-resistant polypropylene woofer cones
- Temperature-resistant materials for automotive applications
- Rubber surround for durability and performance
- Neodymium tweeter magnets for powerful performance in a compact design
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