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Infinity Kappa 680.7cs

6" x 8" 2-way Kappa Series Component System (also mounts in most 5" x 7" location, KAPPA680.7CS)

4.8

(13 reviews)

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The product on this page is discontinued, but there is a newer model available:
Newer Model: Infinity Kappa 680.9cs
6809cs thumbnail
$189.95In Stock

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  • 5"x7" / 6"x8" 2-Way Coaxial Car Audio Loudspeaker Component System
  • Power Handling:
    • Peak: 540 watts per set / 270 watts each side
    • RMS: 180 watts per set / 90 watts each side
  • Plus One woven-glas-fiber woofer cone looks great and sounds even better
  • 1" Edge-driven MMD-Dome tweeter
  • SLI high-output design
  • Neodymium motor structure with integrated heatsink
  • Outboard passive crosover with air core inductors and poly caps
  • I-Mount tweeter kit with new Starfish OEM adaptor: Surface, Flush, Angle mounts, or in the factory tweeter location with the Starfish mount
  • Intemount III woofer mounting system: Mount in 6", 6-1/2", or 3-Point or 6-3/4" locations
  • Tweeter level adjustment: Just flick a switch to add 3dB to your highs!
  • Impedance: 2 Ohms
  • Crossover Dimensions: 4-15/16" L x 2-11/16" W x 1-5/16" H
  • 3-year SonicElectronix.com warranty

Priced Per Pair

Product History:
Infinity Kappa 680.9cs thumbnail
(newest, current model)
Infinity Kappa 680.7cs thumbnail
(previous model, replaced by Infinity Kappa 680.9cs)
Speaker Specifications
Speaker Size6" x 8" (also mounts in most 5" x 7" locations)
Design2-way Component System
Tweeter DesignDome
Tweeter CompositionM.M.D. (Metal Matrix Diaphragm)
Woofer CompositionWoven Glass Fiber
Woofer SurroundRubber
Peak Power Handling270 watts
RMS Power Handling90 watts
Sensitivity94 dB
Frequency Response45 - 25000 Hz
Impedance (Per Voice Coil)2 ohms
Top-Mount Depth2-1/4"
Bottom-Mount DepthN/A
Cutout Dimensions4-7/8" x 7-1/8" 
Warranty and Return Policy
Return Policy Standard Return Policy
Customer Review Summary for Infinity Kappa 680.7cs
Average Customer Rating is 4.8 out of 5 stars:
4.8
based on 13 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
.
.
85%
4 star:
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.
15%
3 star:
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0%
2 star:
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0%
1 star:
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0%
what's this?
Average Attributes Rating:
Durability
4.5
Value
4.6
Features
4.6
Design
4.8
Usability
4.5
what's this?
Most Helpful Customer Reviews:
February 5, 2010 Crystal Clear Sound
Review by
CDoh from Los Angeles, CA
Overall
Durability
Value
Features
Design
Usability
Sounds great and @ 2 ohms. This is the best bang for the buck speakers.
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June 26, 2009 Damn good sounding speaker set.
Review by
Mike Payne from Fort Branch, IN
Overall
Durability
Value
Features
Design
Usability
I finally got these installed in my truck. I used to install car stereo for a living and I have heard TONS of speakers. These things sound fantastic, good midrange, great clarity in the upper end. Pretty decent mid bass output (mounted in the doors). They arent a MB Quart Q series, but they have 1/4 the price of those. They are in my opinion, as good as or better sounding that the ZR JL audio series. Very nice speaker and Im happy with them. Whoever, said they are harsh needs to adjust the EQ properly. I wouldnt call them harsh, they tweeters have a tendecy to get a bit bright if you dont tone them down in the 12k range. And for the comments on power rating being low, I never have ever considered a speaker for the power rating (well highs anyways, subs are a bit different). People need to understand, distortion blows speakers, not power. If you char a voice coil, lock a speaker up from a voice coil failure or otherwise, It is because of distortion. Power didnt really have anything to do with it. If rip a spider assembly, blown the cone of the axis, or break the cone. That is because of too much power. One needs to also consider you are less likely to blow a speaker with a bit more power than its rating that with not enough power. With more power you achieve your threshold of listening level quicker and with out the distortion. Thanks again SE
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April 15, 2009 infinity kappas
Review by
cliffdog from wy.
Overall
Durability
Value
Features
Design
Usability
very bright sounding speaker,would'nt recomend them for people that listen to hard rock or heavy metal,but rap,pop,or classical sounds great.I think they're more of a sound effects speaker,I have a pair of infinity reference series they handle more power than the kappas.I think it is because the ref. series have big magnets on them and the kappas don't.They are both 90 rms speaker.
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April 13, 2009 Great product
Review by
playa from washington,la
Overall
Durability
Value
Features
Design
Usability
Great speakers at a great price
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April 7, 2009 They're awesome!!!!!!
Review by
Mario from Sherman,Tx
Overall
Durability
Value
Features
Design
Usability
I just got these speakers and OMG they sound so loud and crisp. If u want to be heard from 2 or 3 blocks away u should buy them.
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View All 13 Reviews for Infinity Kappa 680.7cs
Speaker Wire
Upgrade your factory speaker wire to aftermarket speaker wire and hear the difference! Using thicker gauges, newer technology, and higher quality materials, aftermarket speaker wire is key to upgrading the sound in your car.
 ProductPriceAdd?
20 ft. of 16 AWG KICKER X-Series Speaker Wire20 ft. of 16 AWG KICKER X-Series Speaker Wire
Get high quality sound from Kicker's twisted-pair, true to gauge speaker wire.
$19.99
50 ft. of 14 AWG StreetWires Speaker Cable50 ft. of 14 AWG StreetWires Speaker Cable
Streetwires Super Cable provides a zero-grip insulation for a smooth install as well as true gauge twisted wire construction.
$29.99
Sound Dampening Material
Get optimal sound from your new speakers with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
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NVX SDSK2 Speaker KitNVX SDSK2 Speaker Kit
Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!
$19.99
NVX SDRLR1 Sound Dampening Rubber RollerNVX SDRLR1 Sound Dampening Rubber Roller
Install your Sound Dampening with ease! This heavy duty rubber roller is designed specifically to install your NVX products!
$8.95
Installation, Tools & Accessories
Get all of the tools and accessories to install your new speakers like a professional, or take your car to an expert and have them installed by redeeming professional installation cards.
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Door Panel & Upholstery Remover ToolDoor Panel & Upholstery Remover Tool
The ideal tool for removing your car's door panels to replace you speakers!
$11.99
Universal Window Handle Remover ToolUniversal Window Handle Remover Tool
Designed to easily remove the manual window handles without breaking any interior pieces.
$4.99
Universal Wire Puller & GrabberUniversal Wire Puller & Grabber
Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!
$8.99
Tone Generators and Sound Testing Equipment
Optimize your new system's sound quality by testing and calibrating all of your components with these items.
 ProductPriceAdd?
AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99

Product Summary

Manufacturer: Infinity
Model number: 680.7CS
UPC: 050667034405
Weight: 6.00 lbs
Internal SKU: 6807cs
Internal product ID: 5025
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Customer Testimonial

Kevin is a very good and reliable rep! He saved me some very valuable time and got my item at a fraction of the price others charge! I've been shopping at Sonic for 4 years and will always continue to appreciate your products and valuable customer service.

- Neo from Chicago, IL

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