






Kenwood KFC-6988RS 6" x 9" 4-Way Car Speakers
- 6 x 9-inch four-way coaxial speakers
- 140W RMS, 670W peak handling
- 4-ohm nominal impedance
- 60 Hz to 22 kHz response
- Diamond Array polypropylene woofer cone
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The Kenwood KFC-6988RS is a pair of 6 x 9-inch, 4-way full-range car speakers designed for replacing compatible factory speakers or building a higher-output vehicle audio system. They provide a broad frequency range with dedicated woofer, tweeter, and dual super-tweeter elements in each speaker assembly. This makes them a practical option for listeners who want clearer detail and fuller sound from a conventional 6 x 9-inch location.
Rated for 140 watts RMS and 670 watts peak power, the KFC-6988RS is suited to systems that need speakers with substantial power-handling capability. Its 4-ohm impedance supports use with many compatible car stereo and amplifier installations. With 88 dB sensitivity at 1 meter, it is engineered to produce useful output from appropriately matched power.
The 6 x 9-inch polypropylene woofer uses Kenwood's Diamond Array Pattern to help reduce distortion while reproducing midrange and bass content. A urethane surround supports the woofer assembly, while the steel basket provides a rigid mounting structure. Together, these elements are designed for reliable operation in a vehicle environment.
A 1-3/4-inch balanced-dome tweeter works with 20 mm and 12 mm ceramic super tweeters to extend high-frequency reproduction. Kenwood's Acoustic Sound Harmonizer manages woofer sound waves through the tweeter panel for a smoother response. The Sound Field Enhancer tweeter shape is designed to strengthen forward sound and widen the high-frequency sound field.
The KFC-6988RS can be used in compatible rear-deck, door, or other factory-style 6 x 9-inch speaker locations where depth and cutout requirements are met. Its low tweeter height helps support factory-location fitment, but vehicle-specific clearance should always be checked before installation. For a system upgrade, match the speakers with a properly configured 4-ohm head unit or amplifier and use clean, unclipped power.
Key Features
- 140W RMS Power Handling: Supports higher-powered systems when paired with compatible amplification.
- 6 x 9-Inch Polypropylene Woofer: Delivers full-range output from a durable PP cone.
- Diamond Array Pattern: Helps reduce distortion for more controlled woofer performance.
- Four-Way Driver Design: Combines a woofer, dome tweeter, and two super tweeters.
- Acoustic Sound Harmonizer: Helps create a smoother, more natural sound response.
- Sound Field Enhancer: Promotes stronger forward sound and wider high-frequency dispersion.
Design & Installation
The KFC-6988RS uses a black polypropylene woofer cone with Diamond Array Pattern, a urethane surround, and a steel basket. Its top plate and yoke are steel with a black finish, while the woofer and main tweeter use ferrite magnets. The speaker's low 1/2-inch tweeter height is intended to aid fitment in many factory speaker locations.
Confirm that the vehicle provides at least a 5-7/8 x 8-5/8-inch oval cutout and 3-3/16 inches of mounting depth before installation. The included accessory set includes grilles, mounting hardware, speaker cords, and adhesive tape. Use the supplied template and hardware as appropriate, observe correct speaker polarity, and ensure the source unit or amplifier is compatible with a 4-ohm speaker load.
| Model | KFC-6988RS |
|---|---|
| Speaker Type | 6 x 9-inch oval 4-way speakers |
| Peak Input Power | 670W |
| RMS Power | 140W |
| RMS Power Standard | CTA-2031 compliant |
| Impedance | 4 ohms |
| Sensitivity | 88 dB/W at 1 m |
| Frequency Response | 60 Hz to 22,000 Hz |
| Woofer Size | 153 x 229 mm (6 x 9 inches) |
| Woofer Cone Material | Polypropylene (PP) |
| Woofer Cone Finish | Black with Diamond Array Pattern |
| Woofer Surround | Urethane |
| Woofer Basket | Steel |
| Woofer Top Plate/Yoke | Black steel |
| Woofer Magnet Material | Ferrite |
| Woofer Magnet Size | 90 mm diameter x 15 mm |
| Main Tweeter Type | Balanced dome |
| Main Tweeter Size | 44 mm (1-3/4 inches) |
| Main Tweeter Magnet | Ferrite |
| Super Tweeter 1 Type | Balanced dome ceramic |
| Super Tweeter 1 Size | 20 mm (4/5 inch) |
| Super Tweeter 1 Color | Silver |
| Super Tweeter 2 Type | Dome ceramic |
| Super Tweeter 2 Size | 12 mm (1/2 inch) |
| Super Tweeter 2 Color | Silver |
| Acoustic Sound Harmonizer | Yes |
| Sound Field Enhancer | Yes |
| Cutout Diameter | 149.5 x 218.5 mm (5-7/8 x 8-5/8 inches) |
| Tweeter Height | 12.5 mm (1/2 inch) |
| Mounting Depth | 80.5 mm (3-3/16 inches) |
| Width With Grille | 266.1 mm (10-1/2 inches) |
| Height With Grille | 197.3 mm (7-3/4 inches) |
| Depth With Grille | 109.1 mm (4-5/16 inches) |
| Width Without Grille | 236.4 mm (9-5/16 inches) |
| Height Without Grille | 164 mm (6-7/16 inches) |
| Depth Without Grille | 93 mm (3-11/16 inches) |
| Included Grille Assemblies | 2 |
| Included Tapping Screws | 8, 4 x 40 mm |
| Included Flat Washers | 8, 4 mm |
| Included Short Speaker Cords | 2, 0.3 m |
| Included Long Speaker Cords | 2, 4.5 m |
| Included Adhesive Tape | 1 set |
| Included Warranty Card | 1 |
This product uses a 6"x9" speaker size. Pick your vehicle to see the factory locations it fits.
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Will these fit my vehicle's factory 6 x 9-inch speaker opening?
Fitment depends on the vehicle's opening, available depth, and mounting pattern. Confirm a 5-7/8 x 8-5/8-inch cutout and 3-3/16-inch mounting depth, along with adequate clearance for the speaker assembly.
Do I need an amplifier for the KFC-6988RS speakers?
An amplifier is not specified as required, but the speakers are rated at 140W RMS and should be paired with a compatible source or amplifier. Use clean power and avoid clipping.
What impedance are these speakers?
The KFC-6988RS has a 4-ohm impedance. Verify that the connected car stereo or amplifier supports a 4-ohm speaker load.
What is included for installation?
Kenwood lists two grille assemblies, eight tapping screws, eight flat washers, two short speaker cords, two long speaker cords, adhesive tape, and a warranty card. Installation requirements can vary by vehicle.
Are these component speakers?
No. The KFC-6988RS is a 4-way speaker design with the woofer, balanced-dome tweeter, and two super tweeters integrated into each speaker assembly.
Shipping
- Free 2nd-Day Air shipping on this item
- FREE Next-Day Air on orders over $499
- Orders placed on business days are typically processed the same day, delivery estimates are shown at checkout.
Warranty & Returns
- Authorized Dealer — 100% authentic products with full manufacturer warranty
- 60-Day Returns — Hassle-free returns, see our return policy for details
- Price Match Guarantee — We match verified prices, see policy for terms

Kenwood KFC-6988RS 6" x 9" 4-Way Car Speakers


















