KICKER 46CSC684 CS Series 6x8" Coaxial Car Speakers – 4 Speakers / 2 Pairs
Upgrade Your Factory Sound with Four KICKER CS-Series 6x8" Speakers
Replace weak, worn-out factory speakers and upgrade your entire system with this 4-speaker bundle of Kicker 46CSC684 CS Series 6x8" coaxial speakers.
This package includes two complete pairs (4 speakers total), making it an excellent choice for vehicles that use 6x8" speakers in both the front and rear locations. The KICKER CS Series combines impressive clarity, strong midbass response, and efficient performance in a factory-friendly design that works great with either factory radio power or an aftermarket amplifier.
Each 46CSC684 features a rigid polypropylene woofer cone, KICKER's EVC™ (Extended Voice Coil) technology, a UV-treated surround, and a 1/2" PEI balanced-dome tweeter. The result is cleaner vocals, brighter highs, and stronger overall sound than typical factory speakers.
What's Included
- (2) Pairs Kicker 46CSC684 CS Series 6x8" Coaxial Speakers
- Factory KICKER packaging and included accessories
Why Upgrade to KICKER CS Series?
Complete 4-Speaker Upgrade
Instead of replacing only one pair, this bundle gives you four matching KICKER speakers for a more balanced front-to-rear sound. It's ideal for vehicles equipped with 6x8" speakers in multiple factory locations.
Excellent Factory Speaker Replacement
KICKER designed the CS Series with reduced mounting depth and zero-protrusion tweeters to help the speakers fit behind factory grilles. This makes the 46CSC684 an excellent choice for upgrading factory audio without requiring a complicated custom installation.
Clear, Detailed High Frequencies
The integrated 1/2" PEI balanced-dome tweeter uses a neodymium magnet to reproduce crisp vocals and detailed high frequencies while maintaining a zero-protrusion design for easier installation behind factory grilles.
Stronger Midbass & Better Sound
A rigid polypropylene woofer cone combines with KICKER's EVC™ (Extended Voice Coil) technology and heavy-duty motor structure to provide controlled cone movement, improved midbass, and cleaner overall output.
Built for Everyday Automotive Use
The woofer uses a durable, UV-treated polyester foam surround designed to withstand the heat and demanding conditions commonly found inside vehicles.
Features
- Genuine Kicker 46CSC684 CS Series speakers
- 2 pairs / 4 speakers total
- 6x8" 2-way coaxial design
- 4-ohm nominal impedance
- 75 watts RMS power handling per speaker
- 225 watts peak power handling per speaker
- 300 watts RMS total for all 4 speakers
- 900 watts peak total for all 4 speakers
- 1/2" PEI balanced-dome tweeters
- Neodymium tweeter magnets
- Polypropylene woofer cones
- EVC™ Extended Voice Coil technology
- Heavy-duty motor and magnet structure
- UV-treated polyester foam surrounds
- Zero tweeter protrusion
- Excellent upgrade from factory speakers
- Compatible with factory or aftermarket audio systems
- No speaker grilles included
Specifications
| Specification | Kicker 46CSC684 |
|---|---|
| Speaker Size | 6x8" |
| Speaker Type | 2-Way Coaxial |
| Quantity | 4 Speakers (2 Pairs) |
| Impedance | 4 Ohms Nominal |
| DC Resistance | 3.5 Ohms |
| RMS Power Handling | 75 Watts Per Speaker |
| Peak Power Handling | 225 Watts Per Speaker |
| Bundle RMS Power | 300 Watts |
| Bundle Peak Power | 900 Watts |
| Sensitivity | 90 dB @ 1W/1m |
| Frequency Response | 45 Hz – 20 kHz |
| Tweeter Size | 1/2" (13mm) |
| Tweeter Material | PEI |
| Tweeter Design | Balanced Dome |
| Tweeter Magnet | Neodymium |
| Woofer Cone | Polypropylene |
| Woofer Surround | Polyester Foam |
| Mounting Hole | 5" x 7-3/16" |
| Top Mounting Depth | 2-3/16" |
| Tweeter Protrusion | 0" |
| Grilles Included | No |
Vehicle Fitment
The Kicker 46CSC684 is designed for vehicles using 6x8" factory speaker locations and is especially popular as a factory speaker upgrade in many Ford, Lincoln, Mazda, Mercury, and other vehicles.
Important: Speaker size alone does not guarantee vehicle compatibility. Some vehicles may require speaker mounting adapters, wiring harnesses, or other installation accessories.
Use our vehicle fit guide to verify compatibility with your specific year, make, model, and factory audio system before ordering.
Frequently Asked Questions
How many speakers are included?
This package includes 4 Kicker 46CSC684 speakers total, consisting of two factory-packaged pairs.
Is the 75-watt RMS rating for the pair or each speaker?
The 46CSC684 is rated for 75 watts RMS per speaker. With four speakers included, this bundle provides a combined 300 watts RMS power handling.
Can I use these with my factory radio?
Yes. The Kicker CS Series is an excellent factory-speaker upgrade and can be powered by many factory or aftermarket head units. Adding an aftermarket amplifier can provide additional output and dynamic range.
Do I need an amplifier?
No. An amplifier is not required. However, these speakers can take advantage of additional clean power if you want more volume and performance than your radio alone can provide.
Are these a direct replacement for my factory 6x8 speakers?
They fit many factory 6x8" speaker locations, but installation requirements vary by vehicle. Some applications may require mounting brackets and/or speaker wiring adapters.
Are speaker grilles included?
No. The 46CSC684 is designed primarily for installation behind existing factory speaker grilles.
Pro Audio Center Expert Recommendation
The Kicker 46CSC684 4-speaker bundle is one of our favorite options for customers looking for a straightforward full-system factory speaker upgrade. Rather than mixing different speakers front and rear, this package gives you four matching KICKER CS-Series speakers for consistent sound throughout the vehicle.
They're an especially good choice for daily-driven vehicles where you want noticeably better clarity and midbass without moving into a complicated component-speaker installation.
For the easiest installation, we recommend pairing these speakers with the correct vehicle-specific speaker harnesses and mounting adapters whenever available.