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Infinity 682.9cf

6" x 8" 2-way Kappa Series Speakers (also mounts in most 5" x 7" locations)

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List price $189.95

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$119.95

with warranty A Pair

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Kappa: The Essence of Infinity

This Infinity Kappa 682.9cf is the essence and trademark of Infinity car audio. With all the high-end engineering and technology that goes into each Kappa speaker, you will sure that you are receiving only the highest quality components. Made with a woven glass fiber woofer cone, which contributes to low cone flex, low distortion, and enhanced acoustic clarity. Due to the increased power handling of the Kappa series, the Kappa 682.9cf feature edge-driven MMD dome tweeters that allow for a seamless sonic integration between the tweeter and the mid-woofer. Using the latest in loudspeaker engineering, each of the crossovers has computer optimized voice-matched outboard passive crossovers for flawless performance.

Unipivot: Staging Made Easy

The Infinity 682.9cf features a patented Unipivot tweeter design that ensures proper imaging when the speakers are installed. With the tweeter capable of being moved, it is positional and rotational even after the final screw secures the speaker in the door. Since most speakers are installed low in the door, the Unipivot design brings the soundstage up to the listener for more accurate and enjoyable experience. Each of the Kappa coaxial speakers, such as the Infinity Kappa 682.9cf feature adjustable tweeter level control. This switch will adjust the tweeters output by 3 dB. That simple tuning can make all the difference in your system and it ensures that your Kappa speakers will deliver exactly the sound that you are looking for.

True Four Ohm Technology

The engineers at Infinity have developed a speaker that works for all applications. The True Four Ohm Technology used in these speakers make it perfect for running directly of a headunit or with an aftermarket headunit and amplifier. All of the speakers in the Infinity Reference line feature a 2 ohm voice coil. However, when you factor in the small OEM speaker wire of most vehicles and the heating in the voice coil during use, the impedance actually seen by the amplifier will increase. Infinity has adjusted the speaker to be safely connected to any headunit.

General Features:

  • 6" x 8" (5" x 7") Kappa Series 2-way Speakers
  • Power Handling:
    • Peak: 600 watts per pair / 300 watts each
    • RMS: 200 watts per pair / 100 watts each
  • Woven glass fiber cone woofer
  • Rubber surround
  • Edge driven MMD dome tweeter
  • Unipivot patented rotating tweeter allows tweeter to be directed at the listener's location
  • Direct connect computer-optimized, voice-matched outboard passive crossover for superb detail and accuracy
  • Tweeter level adjustment on tweeter by simply rotating the tweeter to add or subtract 3 dB output
  • 2 ohms impedance
  • Top-mount depth: 2-7/8"
  • Authorized Internet Dealer
  • 1 year Manufacturer's warranty

Priced Per Pair

Product History:

Infinity 682.11cf thumbnail
(newest, current model)
Infinity 682.9cf thumbnail
(previous model, replaced by Infinity Kappa 682.11cf)

Speaker Specifications

Series
This is the manufacturer product line of speakers.
Kappa (Infinity)
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Pair
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
6" x 8" (also mounts in most 5" x 7" locations)
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
2-way
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Dome
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Metal Matrix Diaphragm
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Woven Glass Fiber
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Rubber
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
300 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
100 watts
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
94 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
40 - 25000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
2 ohms
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
2-7/16"
Bottom-Mount Depth
The depth when installed from the bottom of the mounting surface. Measured from the bottom of the speaker's magnet to the top of the mounting holes on the rim of the speaker.
3"
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
7-1/8" x 4-5/8" 

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
69%
4 Star
31%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.6
Value
4.7
Features
4.6
Design
4.7
Usability
4.7
Mike

Canada

Overall
Durability
Value
Features
Design
Usability
good speakers

July 6, 2012

Ordered 2 sets for my 2011 F150, front and back doors. First, hooked them up on stock head unit with no amp, and they definitely sounded much better than the stock junk speakers. Since then, I have them hooked up to an amp running about 85watt RMS to each, and they sound even better. Had them for over a year now and no complaints.

5 of 6 found this helpful

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Gil

Bradenton, FL

Overall
Durability
Value
Features
Design
Usability
Great for the price

August 10, 2011

Bought these for my 2011 F150. They were a massive upgrade from the stock garbage Ford put in there. I'm only running them off of the factory stereo, and they are loud and clear enough to make your ears hurt.

6 of 8 found this helpful

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KWK

Salt Lake City, Utah

Overall
Durability
Value
Features
Design
Usability
Great Deal!

April 23, 2014

I talked to a knowledgeable salesman who helped me find the right speakers to upgrade my stock speakers in my Mazda 3. They are Infinity 682.9cf speakers and they fit perfectly in the spot of the old ones just like he said they would-what a relieve not having to modify the old speaker housing. All in all it was a simple task and the sound is ten times better-yeah! Thanks Sonic!

4 of 5 found this helpful

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steven

venice, fl.

Overall
Durability
Value
Features
Design
Usability
amazing

March 2, 2010

these speakers sound great.. i have them in the doors of my ranger and all my mirrors shake..ive had like 4 people ask me if i have subs behind my seat, and i dont.. i have sonys in the back and im getting rid of them and buying two more of these to replace them very soon. they are great speakers and well worth your money. i dont even have an amp pushing them. my only complaint is that it was a little tricky hooking up the wires to the crossovers. but it was worth the extra 10 min. trying to get them in good and tight. and by the way, on certain rap song, the tweeters do screech some, but its not noticeable 99% of the time.

3 of 4 found this helpful

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Sam

East Islip, NY

Overall
Durability
Value
Features
Design
Usability
amazing!!

March 31, 2013

These speaker out lasted not one, but two pairs of jl c5 components and they're a lot cheaper, bass is better and not to jinxit, but haven't yeta blown a speaker and these speakersare easily handeling 80watts rms at about 13.6v from an older, yet still kickin jbl gto amp that was initially a $600 amp so u kno it's decent. These speakersare better than jls 2010 lineup of "highend" speakers, and betterthan alpines typer comps which i killedmore than one of likethe jls. Ignore any negative reviews, quit lookin and comparing cause u gotta buy these! Jbl and infinity are my new favorites. Used tobe alpine and jl and infinity proved theyare theexception to the rule that "u get what u pay for" since these are cheap, better sounding, longer lasting and just plain amazing!! Fits in my 2010 mazdaspeed 3!

2 of 3 found this helpful

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Justin

Clarence, NY

Overall
Durability
Value
Features
Design
Usability
Infinity Kappa

July 26, 2012

Had these about 2 months and wasnt long before i ordered another pair for the back seats. Infinity has not let me down

1 of 1 found this helpful

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Tecknodude180

East Bethel, MN

Overall
Durability
Value
Features
Design
Usability
good speakers

July 15, 2012

These speakers are clean and loud hooked up to a Kenwood KDC-HD548U. I have them installed in an '06 Ford Crown Vic and they are loud, but not very much bass even though I have XTC 5" x 7" Foam Speaker Baffles installed behind the speakers.

If you're not worried about bass because you have subs to add to the set up, then these speakers will do just fine for ya. I would recommend using an amp to power these speakers, especially if you're running 500W RMS or more in your subs!

1 of 1 found this helpful

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Tyrone

Apo, AE

Overall
Durability
Value
Features
Design
Usability
Great Speaker

January 26, 2012

Great speaker, awesome sound and easy installation. Just pay attention where you mount the crossover module because I mounted it in the wrong place and my window damaged it.

1 of 1 found this helpful

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James

Rutherfordton, NC

Overall
Durability
Value
Features
Design
Usability
Great Speakers

December 13, 2011

Installed these speakers in my 2004 F-150 FX4, powered by the Clarion CZ500 head unit and these speakers are great. Sound quaility clear and loud. I had a Memphis Audio system previously and these are crisper and cleaner. The tweeter adjustment is a great added bonus when you're tuning the front and rear sets. The bass is nice without adding any distortion to effect the range of sounds. The speakers needed very little adjustment to fit into the factory holes. Infinity definately lives up to it's name with these.

1 of 1 found this helpful

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TONY

manteca ca

Overall
Durability
Value
Features
Design
Usability
INFINITY KAPPA 682.9CF

November 1, 2010

Infinity Kappa speakers are great speakers, with a great price and great sound. they fit perfectly in my 92 mustang 5.0 convertible feature/summer/special edition. i am powering them with about 100/110 watts rms of kicker power and they have held up without a hiccup. great clarity and midrange. they are only 5x7/6x8 speakers so they down drop down too low in frequincey but with a sub to back them up they sound killer. i run infinity all around and they sound great. i would recomend these to anyone.

1 of 1 found this helpful

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Rod L

Fayetteville, GA

Overall
Durability
Value
Features
Design
Usability
Great sound..... low price

July 19, 2010

I have a pair of Infinity Kappa 682.9cf in the rear of an '02 mustang and a pair of Infinity components(6830cs) in the front running off of a JL Audio 300/4 and they sound amazing. I would recommend these speakers to anyone who wants clean and brilliant highs. The only thing about these speakers that could be viewed as negative is they are not good with producing any bass, but I didn't get them for bass. I only wanted what they give me now, great sounding highs!

1 of 1 found this helpful

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Orlando

Calhoun, GA

Overall
Durability
Value
Features
Design
Usability
Infinities

May 12, 2010

Awesome speakers!!!!!! I have 4 of them in a 00 grand marquis and they sound great!

1 of 1 found this helpful

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Max

Saint Paul, MN

Overall
Durability
Value
Features
Design
Usability
I hope this isn't the case.

April 16, 2010

These are some good sounding speakers, quality construction for the most part. I bought 4 for my 95 T-Bird, and although I am very pleased with the sound, I do believe I'm starting to hear a bad buzz in the front right. I haven't checked to see if it's blown or has some separation or something, but it's not sounding good. I don't play my music too incredibly loud, and the bass isn't too bad. So if this isn't something other than a damaged speaker, then i am very displeased with the quality of these speakers.

1 of 1 found this helpful

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Revelation Audio Video

Winston Salem, NC

Overall
Durability
Value
Features
Design
Usability
Great Speaker

November 25, 2009

This is an excellent speaker! They sound great and I love the ability to attenuate the highs. Be carefull what you power them with though. These are 2 ohm units and CANNOT be powered in the "real" world using a factory or an aftermarket head unit. These are designed to be powered by a 2 ohm stable amp only! Infinity website says otherwise but they are NOT testing "real" world conditions.

1 of 1 found this helpful

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Spencer

Ronald, Wa

Overall
Durability
Value
Features
Design
Usability
infinity kappa 682.9cf

February 2, 2009

This is a great speaker. My personal setup is two 6x8 infinities hooked up to a 440w amp, and two infinity 4 inch round dash speakers in a ranger. These speakers work great and are very crisp. They work great for country and classical music. I am personally going to put in a subwoofer to get the full body behind the music. If you are putting these in ranger, make sure to tighten down all of your panels and you should probably put sound deadening mat behind the speakers because there is alot of power with these speakers, they give a good punch.

1 of 1 found this helpful

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rude dog

Charlotte,NC

Overall
Durability
Value
Features
Design
Usability
low price high performance

October 13, 2014

For the relative low price these things jam very good bass(FOR A 5/7)or speaker of this size,mids and highs are great as to be expected plus swiveling tweeter helps.II've had these at 100W rms for about four years now at high volume every day with no issues if they don't sound good to you it's your amp set-up or not tuned properly don't send 40htz to mid speakers.Use them for what they are designed to do and you will be happy happy happy!I would put these in same league as JLs and I love my 13W6' s it also adds function that they are 2ohms but don't putem on a head unit!
GET THESE paying more would be a waste of money you could put towards something else like proper wiring etc.

1 of 2 found this helpful

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Gerry's Kid

Chicago ,Il

Overall
Durability
Value
Features
Design
Usability
great sound at an affordable price

August 7, 2014

installed 2 pair in my F250 with 7.3 Deisel.

sounds great Need to readjust EQ after break in. Finally have speakers louder than the engine.

2 of 4 found this helpful

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David

Texas

Overall
Durability
Value
Features
Design
Usability
Extremely pleased

June 30, 2014

To begin I will say that I'm not going to bore you with the technical aspect of these speakers. I have had these installed in my 1998 Ford Explorer XLT for several weeks, and have been very pleased with their performance. I listen to a wide variety of music (i.e. Metal, edm, rap, etc.), and they have handled them all very well. I have previously owned brands such as focal, boss, and pioneer. I have by far been the most pleased with these. Currently I am running these off the stock head unit (as I have failed to install my new kenwood stereo yet), with no amplifier. I have seen many reviews complaining about the external crossover (the large black box in the photos) being a hassle to arrange. I did not experience this issue. However, if you have these professionally installed then it should not be an issue. My advice is to Velcro it to the inside of your door frame, should you decide to do a self install, and just let it rest inside the speaker mount if yours is built in (as mine is). When I unboxed them after removing my door panel and factory speakers the original plug was a bit of a surprise. However, if you cut the plug off and strip the wires slightly, the wires install quite nicely into the crossover. All in all the speakers were easy to install, perform well, and fit nicely into both 6x8 and 5x7 mounts.

2 of 4 found this helpful

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alex

west fargo, ND

Overall
Durability
Value
Features
Design
Usability
Audiophile quality for entry level price.

February 26, 2014

So far the 6*8 coaxial speakers sound great. I purchased these to go along with my front 6*8 component set in my ford focus. These are a great addition. One noticeable problem is that the tweeter was loose on one of the speakers and the only way to tighten the screw is to remove the sicker voiding the warranty. This series of infinity kappa's have very limited low end anything 80hz and below is quiet. If you adjust the bass higher on an equalizer the mids become muddy. If you plan on adding these to your car for more bass don't! You'll definitely need a sub. The quality and power handling of these is quite good but they are hungry. Factory radio power is not enough to get true definition. I have my front components currently hooked up to a 45 watt amp they sound crystal clear up until distortion. My rear coaxial are being powered by the an aftermarket pioneer head unit and they just can't keep up. I recommend you purchase an amp with these speakers.

2 of 4 found this helpful

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black

texas

Overall
Durability
Value
Features
Design
Usability
spectacular

February 3, 2014

I really like them they have good clean crisp sound an are the best door speakers I've had.

1 of 2 found this helpful

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Accessory Tools and Products

Accessories added

Streetwires 25 ft. of True Spec 12 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $44.95

Belva 23 ft. of True Spec 12 Gauge Speaker Wire

100% Copper Clad Aluminum, high strand count with ultra-flexible PVC blended jacket for easy installation

Your Price $9.99

12-10 AWG Yellow T-Tap Adapters

Allows for fast and easy splicing of wires by easily tapping into the cable.

Your Price $4.49

NVX SDSK2 Speaker Kit

Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!

Your Price $14.99

Dynamat Xtreme Speaker Kit 10415

Enough sound dampening for 2 speakers!

Your Price $17.95

Stinger Roadkill Speaker Kit

Use this to eliminate rattle from your speakers!

Your Price $13.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $14.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $6.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $14.99

Xscorpion WDCR2 Window and Door Clip Remover

Removes and installs handle and window crank clips.

Your Price $6.99

NVX SDRLR1 Sound Dampening Rubber Roller

Install your Sound Dampening with ease! This heavy duty rubber roller is designed specifically to install your NVX products!

Your Price $7.99

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Browse 1 question and 6 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
Read nothing but good reviews on F150 forums (which is the vehicle these are going into)
Bari W on Nov 10, 2014
Infinity has crisp sound from all the highs to the lows .speakers are easy to install with the extra wire you connect the speakers too
Thomas F on Sep 23, 2014
They seemed like the best deal and I hope they sound really good.
Brian F on Nov 7, 2014
heard great things so and with a discount...why not
Carlos R on Aug 26, 2014

Product Summary

Manufacturer

Model Number

682.9cf

UPC

050667110116

Weight

7.00lbs

Internal SKU

6829cf

Internal Product ID

13967

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Infinity 682.9cf

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