Kicker 51KSC6904 KS Series 6"x9" 150W RMS (300W Peak Power Handling) 4 Ohms, 2-way Coaxial Car Speakers (pair)
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What's Inside?
- • (2) 6"x9" KS Series Coaxial Car Speakers
- • (2) Grilles
- • (2) Grille frames
- • (2) Adapter brackets
- • (2) Bottom mount spacers
- • (2)11" Length speaker wire
- • (2) Adhesive backed foam pads
- • Grille putty
- • (4) Red plastic wire caps
- • (8) 1-1/8" Screws
- • Quick-Start guide (English/ Spanish/ German/ French)
- • Template
- • Owner's Manual
Why Choose Kicker 51KSC6904 Full Range Car Speakers?
Elevating Your Drive with Precision Performance
Kicker is known for producing car audio equipment with a focus on performance and durability. These speakers are designed to provide clear and balanced sound reproduction in a car audio system. It's important to check for any updates or changes to the product specifications, as newer models may have been released since my last update in January 2022.
Unleash the Spectrum
The 2-way Coaxial system seamlessly integrates various speaker components, commonly incorporating a dynamic woofer responsible for handling low-frequency sounds and a specialized tweeter dedicated to reproducing high-frequency tones. In this configuration, both the woofer and tweeter operate cohesively within a single unit to deliver a comprehensive audio experience, effectively catering to the entire spectrum of frequencies.
Powerful Sound, Easy Fit
These speakers deliver high-volume performance with smooth, natural sound. Polypropylene woofers with rubber surrounds and silk-dome tweeters provide tight midbass and clear highs, while the thin-mount design—under 3" depth with minimal tweeter protrusion—fits behind most factory grilles.
Frequently Asked Questions (FAQ)
- • Will these fit my factory 6x9 speaker openings?
They are designed to fit many factory 6x9 locations, but vehicle compatibility varies. Check your vehicle's mounting depth and adapter requirements before installation.
- • Why do the speakers sound distorted when I turn the volume up?
Distortion is often caused by amplifier clipping or excessive bass boost. Proper gain adjustment and crossover settings help keep the sound clean.
- • Can I use these with my factory stereo?
Yes. They perform well with most factory head units, but adding an external amplifier can improve clarity and output.
- • Why do the speakers have weak bass after installation?
Incorrect speaker polarity or poor door sealing can reduce bass performance. Verify the wiring and ensure the speakers are mounted securely.
- • Do I need mounting brackets or wiring harness adapters?
Some vehicles require installation accessories for proper fitment and wiring. Check your vehicle's application before beginning the installation.
- • Why is one speaker louder than the other?
This is commonly caused by loose wiring, incorrect balance settings, or a damaged connector. Inspect the wiring and verify your stereo settings before replacing any components.
- • Can I add an amplifier later without replacing these speakers?
Yes. An amplifier that matches the speakers' RMS power rating can significantly improve volume and overall sound quality.
- • Why do I hear popping or crackling sounds while listening to music?
Loose speaker terminals, damaged wiring, or amplifier clipping are common causes. Check all electrical connections and ensure the amplifier is properly tuned.
- • Will these sound better than the factory ones?
Yes. They deliver improved highs, stronger midrange response, and better overall sound quality than many factory-installed speakers.
- • Why do the speakers stop working after playing for a long time?
An overheating amplifier or a loose electrical connection can interrupt playback. Check amplifier ventilation and inspect all wiring to ensure a reliable installation.
- Diameter : 6x9 Inch
- Sensitivity : 92 dB
- Impedance : 4 Ohm
- Frequency Response : 30-21000 Hz
- Peak Power Handling : 300 Watts
- Design : 2 Way
- Top Mount Depth : 2.93 Inches
- Woofer Composition : Polypropylene
- Tweeter Composition : Silk Dome
- RMS Power Handling : 150 Watts
Features:
- Potent Performance: Plays at high volume while maintaining smooth, natural sound.
- High-Quality Components: Polypropylene woofers with rubber surrounds and silk-dome tweeters deliver tight midbass and clear highs.
- Thin-Mount Design: Less than 3" mounting depth with minimal tweeter protrusion fits behind most factory grilles.
- Versatile Power Use: Handles 15–150 Watts RMS for use with factory radios or aftermarket amplifiers.
- Enhanced Audio Detail: Smooth vocal and instrumental reproduction for an improved listening experience.
- Included Grilles: Protect the speakers and enhance vehicle styling.
Specifications:
- Speaker Design: 2-Way
- Woofer Size: 6x9" (160 x 230 mm) polypropylene cone
- Tweeter Size: 1" (25 mm) silk dome
- Tweeter Dome Material: Silk
- Tweeter Magnet Material: Neodymium
- Woofer Surround Material: Rubber
- Rated Impedance: 4 Ohm
- Recommended Amplifier Power: 15–150 Watts RMS
- Maximum Peak Power Handling: 300 Watts
- Sensitivity: 92 dB (1W/1m)
- Frequency Response: 30–21,000 Hz
- Mounting Hole Diameter: 5-11/16" x 8-7/16" (144 x 215 mm)
- Top Mount Depth: 2-15/16" (75 mm)
- Bottom Mount Depth: 3-3/16" (81 mm)
- Tweeter Protrusion: 1/8" (3 mm)
- Grilles: Included (Black steel mesh with plastic frame)
- UPC: 713034045304
- Weight: 5.1
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.
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Write a review!
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The difference is like night and day with these speakers. Clean and clear sound for my Camry.
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great sounding speakers for my old low rider
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A step up from the speakers on my Silverado. Crisp and clear sound. Fantastic for the price
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Sounds great! The original speakers did not sound very good so I upgraded to these Kicker speakers for the front doors of my Highlander. Easy step by step directions made for a quick install. I have already upgraded the front dash speakers with Kicker brand and I think I may have to upgrade the back door speakers now!
