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Infinity Kappa 683XF

Kappa Series 6"x8" 2-way car speakers

Item # 108K683XF

These Kappa 683XF 6"x8" car speakers benefit from a refined design, Infinity's proprietary technology, and premium...

Find what Fits your vehicle

These Kappa 683XF 6"x8" car speakers benefit from a refined design, Infinity's proprietary technology, and premium...

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Item # 108K683XF

Ships free today

In stock

Deeply discounted installation gear

$249.95 pair

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About the Infinity Kappa 683XF

Kappa quality

Infinity designed and built their Kappa Series for audiophile tastes. These Kappa 683XF 6"x8" car speakers benefit from a refined design, Infinity's proprietary technology, and premium materials to deliver uncompromised audio quality. Plus, Infinity has added convenient features for getting just the right sound for your ride.

Kappa quality

Infinity designed and built their Kappa Series for audiophile tastes. These Kappa 683XF 6"x8" car speakers benefit from a refined design, Infinity's proprietary technology, and premium materials to deliver uncompromised audio quality. Plus, Infinity has added convenient features for getting just the right sound for your ride.

Edge-driven silk dome tweeters

Infinity employs an edge-driven design in their silk dome tweeters for a smoother, more open response and minimal distortion at high volume. The UniPivot angled tweeter design means you can rotate each tweeter up to 270° to aim them toward your ears, so you'll enjoy excellent stereo imaging even if the speakers are mounted way down low in your doors. Each tweeter also features a level control button so you can adjust the brightness to your taste.

Plus One+ woofer technology

Kappa's glass fiber woofer will hold its shape when the power's cranked up, so you still get punchy and defined bass. Glass fiber weighs less than traditional materials, so you don't need a ton of power to drive this woofer either. Infinity's Plus One+ woofer technology extends the cone right up to the edge of the basket, giving you lots of surface area — and a bigger cone means more bass to complement the superior high-frequency response.

Awesome power handling, no matter the system

These 3-ohm speakers boast ultra-high sensitivity so that you can power them with a factory radio or aftermarket stereo, but you'll get your best results feeding them plenty of power from an outboard amp. Either way, these speakers' low impedance safely takes advantage of every watt of power available for exceptional performance. Enjoy Kappa sound quality at any volume.

Grilles are not included; the factory grilles should be suitable for most applications.

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Product highlights:

  • 6"x8" 2-way car speakers
  • Plus One+ glass-fiber woofer cone with hi-roll rubber surround
  • edge-driven, soft dome tweeter
  • 3-ohm impedance
  • grilles not included
  • handles up to 100 watts RMS (300 watts peak power)
  • frequency response: 40-40,000 Hz
  • sensitivity: 93 dB at 2.83 volts
  • top-mount depth: 2-5/16"
  • warranty: 3 years
  • Our 60-day money-back guarantee
  • MFR # INFSPKKA683XFAM

What's in the box:

  • Two 2-way speakers
  • 2 Bottom mount adapter rings
  • Eight 1-3/8" Screws
  • 8 Speed clips
  • 2 Adhesive backed foam gaskets
  • 2 Adhesive backed Infinity logo badges
  • Template on box
  • Installation manual

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More details on the Infinity Kappa 683XF

Pat M.

Features & specs

General
Speaker Size 6X8
Design 2-way
Tweeter Design Edge-Driven Dome
Impedance (Ohms) 3
Tweeter Composition Silk
Woofer Composition Glass Fiber
Woofer Surround Rubber
Parts Warranty 3 Years
Labor Warranty 3 Years
Specifications
Sensitivity (1W at 1 meter) N/A
Sensitivity at 2.83 volts 93
Frequency Response 40 - 40k Hz
Minimum RMS Wattage ---
Maximum RMS Wattage 100
Peak Power Handling (Watts) 300
Top-mount Depth (Inches) 2 5/16
Bottom-mount Depth (Inches) 2 15/16
Cutout Diameter or Length (inches) 0
Mounting Height (Inches) 0.651
The Infinity Kappa 683XF replaces these items:

Product Research

Features

Plus One Woofer Cones: The Plus One speaker cones offer more surface area than other speakers that fit in the same size opening. This is accomplished by using a new basket design and hi-roll surround. The result is greater bass output and an increase in efficiency.

Edge Driven Dome Tweeters: Each speaker has an edge-driven silk dome tweeter. Edge-driven tweeters have better dispersion characteristics and allow for a lower crossover frequency than typical tweeters of the same size, which improves imaging. The result is improved vocals and musical clarity. The tweeter also has an output level switch; choose +0 dB (flat) or -3 dB.

UniPivot Tweeter: The tweeter is angled and can be rotated about 315° after installation. This allows you to direct the tweeters toward the listeners, very useful for speakers mounted low in a door.

High-Output Design: The high output 3Ω voice coil design compensates for the high in-line resistance of small gauge factory wiring and extracts every watt from factory receivers, increasing overall system output and efficiency (relative to 4Ω speakers). The speakers also benefit from increased power when you upgrade the wire and add aftermarket amplifiers, designed to power a 3Ω load.

Terminals: The input terminals are set screws that will accept up to 12 gauge bare wire.

Mounting Applications: Infinity describes these speakers as 6x8, but they also fit many 5x7 applications. Please enter your vehicle information to confirm fit.

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Customer Q&A

2 questions already asked

Q
How do you install this to a 2007 Ford f150? Since there's speaker wire holes instead of the standard clip ons. Not sure how to get a harness to work?
[ Garrett  Apr 27, 2022 ]
1 answer
A
find out which wires go to positive and negative terminals, then cut the spade connectors off and stip the wires.
[ Kent  Apr 30, 2022 ]
Q
How would they match up with jl audio xd1000/5v2. Even tho the speakers are 3 ohm. With a Sony radio 5500?
[ Lil Greg  Feb 28, 2022 ]
2 answers
A
Check the specs on the sony, if you can find them, and look for a minimum speaker impedence. Most likely they will work fine as long as you are not pushing the radio to the max. Then you just overheat the radio and get distortion. These are very good sounding speakers and efficient enough that you don't have to push a lot of power at them. Additionally speaker impedences are typically measured with DC. The actual impedence is lower up in the audio spectrum.
[ Rose  Mar 01, 2022 ]
A
I'm gonna run a jail audio RD 905 two amp I have four of these infinity kappa's going in my Toyota Tacoma so far they sound beautiful just with the stock stereo I'm gonna run Sony ax 7000 Radio to match with this set up should sound beautiful you're on the right track make sure you run good quality oxygen free copper speaker wire and good power wires really makes a difference
[ Anonymous  Feb 28, 2022 ]

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