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Infinity Kappa 682.9cf

5"x7"/6"x8" 2-way car speakers

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Overview

Our take on the Infinity Kappa 682.9cf

Infinity built the latest Kappa speakers with improved technology and high-end materials to provide you with outstanding sound reproduction. The Kappa 682.9cf 5"x7"/6"x8" speakers feature light, but stiff woven glass-fiber woofer cones that won't flex or distort. The Plus One design offers a larger surface area for improved low-frequency output and efficiency, while longer voice coils produce tighter, snappier bass. Large magnets keep the woofers running cooler by placing more steel close to the voice coils to act as a heat sink.

Infinity built the latest Kappa speakers with improved technology and high-end materials to provide you with outstanding sound reproduction. The Kappa 682.9cf 5"x7"/6"x8" speakers feature light, but stiff woven glass-fiber woofer cones that won't flex or distort. The Plus One design offers a larger surface area for improved low-frequency output and efficiency, while longer voice coils produce tighter, snappier bass. Large magnets keep the woofers running cooler by placing more steel close to the voice coils to act as a heat sink.

Infinity uses the same Metal Matrix Diaphragm tweeter found in many of their popular home speakers, so you'll hear the music the way it was recorded with minimal coloration or distortion. The dome tweeters pivot, allowing you to adjust them for better stereo imaging.

The computer-optimized outboard crossover networks employ audiophile-grade components to separate highs and lows, so that the woofer and tweeter work together perfectly. Pre-wired crossovers eliminate a time-consuming step in your installation, and terminals at the end of the crossover wires screw directly to the speakers, leaving no chance for incorrect wiring.

Important Note: You should use an outboard amplifier to power these speakers. Grilles are not included — factory grilles are appropriate for most installations.

Installation Note: These Infinity speakers do not include screws or speed clips. You may be able to use the factory screws to install them, but it's always a good idea to have an assortment of self-tapping screws (5/8" to 1") and speed-clips on hand.

I installed the speakers in a regular cab Ford Ranger with factory cd player. They sound incredible in my small cab with great bass and good mids and highs. Definitely worth the price.

WillH, Macon, Ga

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What's in the Box:

  • Two 2-way speakers
  • 2 In-line crossovers (attached)
  • 2 Adhesive backed foam gaskets
  • Instructions
  • Warranty information

Product Highlights:

  • 2-way 5"x7"/6"x8" speakers (pair)
  • True Four Ohm Impedance technology: speaker's 2-ohm impedance combines with speaker wire impedance for a 4-ohm load
  • Plus One® woven-glass-fiber woofer cone with hi-roll rubber surround
  • 1" rotating UniPivot, edge-driven M.M.D.® dome tweeter
  • computer-optimized outboard crossover with tweeter level control
  • direct-connect crossover dongle
  • power range: 2-100 watts RMS (300 watts peak power)
  • frequency response: 40-25,000 Hz
  • sensitivity: 94 dB
  • top-mount depth: 2-7/16"
  • warranty: 3 years
  • Our 60-day money-back guarantee
Reviews

Infinity Kappa 682.9cf Reviews

Average Customer Review(s):

(46 Reviews)
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Details

Hands-on research

Features and Specs

General
Speaker Size 5X7
Design 2-way
Tweeter Design Dome
Tweeter Composition MMD
Woofer Composition Woven-glass fiber
Woofer Surround Hi-roll rubber
Parts Warranty 3 Years
Labor Warranty 3 Years
Specifications
Sensitivity (1W at 1 meter) 88.6
Sensitivity at 2.83 volts 93.6
Frequency Response 40 - 25k Hz
Minimum RMS Wattage 2
Maximum RMS Wattage 100
Peak Power Handling (Watts) 300
Impedance (Ohms) 4
Top-mount Depth (Inches) 2 7/16
Bottom-mount Depth (Inches) 2 15/16
Cutout Diameter or Length (inches) 0

Product Research

Features

Plus One Woofer Cones: The Plus One speakers use cones more surface area than other speakers of the same size. This is accomplished by using a new basket design and hi-roll surround. The Plus One design offers greater bass output and a significant increase in efficiency.

Woven Glass Fiber Woofer Cones: This woven-glass-fiber material is very light and extremely stiff, minimizing cone flex. This results in very low distortion and improved clarity.

Edge Driven MMD Dome Tweeters: Each speaker has an Edge-driven MMD (Metal Matrix Diaphragm) dome tweeter. The benefit is increased power handling and reduced distortion at high output. This technology also allows for better integration with the mid/woofer. The tweeter has an adjustable output level, +0 dB (flat) and -3 dB.

UniPivot Tweeter: The tweeter is angled and can be rotated about 270° 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 2-ohm 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 4 ohm speakers). The speaker's 2.0-ohm impedance combined with the impedance of your speaker wire provides a true 4-ohm load to your connected headunit or amplifier. The speakers also benefit from increased power when you upgrade the wire and add aftermarket amplifiers, designed to power a 2-ohm load.

Crossovers: Kappa speakers include computer-optimized, voice-matched crossovers, using audiophile quality air core inductors and polypropylene capacitors. The crossover slope is 18 dB/octave.

Crossover Connections: Each crossover is connected to the speaker by a 6" wire. The input terminals are set screws that will accept up to 10 gauge bare wire.

Crossover Dimensions:

  • Length: 3-1/16"
  • Width: 1-1/4"
  • Height: 1-3/16"

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Staff Reviews

Product reviews from the Crutchfield Labs

Video: Infinity Kappa car speakers
by Robert Ferency-Viars

Infinity Kappa is Infinity's high-performance line of car speakers. They're designed and built to give you excellent sound, especially in an amplified system.

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