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Infinity Kappa 63XF

Kappa Series 6-1/2" 2-way car speakers

Item # 108K63XF

These Kappa 63XF 6-1/2" car speakers benefit from a refined design, Infinity's proprietary technology, and premium...

Find what Fits your car

These Kappa 63XF 6-1/2" car speakers benefit from a refined design, Infinity's proprietary technology, and premium...

California customers:
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New

Item # 108K63XF

In stock

Deeply discounted installation gear

$199.95 pair

About the Infinity Kappa 63XF

Kappa quality

Infinity designed and built their Kappa Series for audiophile tastes. These Kappa 63XF 6-1/2" 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 63XF 6-1/2" 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:

  • 6-1/2" 2-way car speakers
  • Plus One+ glass-fiber woofer cone with hi-roll rubber surround
  • edge-driven, silk dome tweeter
  • included brackets allow mounting in a variety of 6-3/4" and 6-1/2" openings
  • 3-ohm impedance
  • handles up to 85 watts RMS (255 watts peak power)
  • frequency response: 45-40,000 Hz
  • sensitivity: 93 dB at 2.83 volts
  • grilles not included
  • top-mount depth: 2-1/8
  • warranty: 3 years
  • Our 60-day money-back guarantee
  • MFR # INFSPKKA63XFAM

What's in the box:

  • Two 2-way speakers
  • 2 Plastic adapter brackets
  • Eight 1-3/8" Screws
  • Eight 1/2" 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 63XF

Pat M.

Features & specs

General
Speaker Size 6 1/2
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 45 - 40k Hz
Minimum RMS Wattage ---
Maximum RMS Wattage 85
Peak Power Handling (Watts) 255
Top-mount Depth (Inches) 2 1/8
Bottom-mount Depth (Inches) 2 1/2
Cutout Diameter or Length (inches) 5 3/16
Mounting Height (Inches) 0.838
The Infinity Kappa 63XF 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: These speakers are marketed as 6½"; they will fit in many standard 6½" speaker openings (just over 5" diameter), but do not use the standard 6½" speaker bolt pattern. In order to install them in standard 6½" speaker openings you must drill new screw holes. If new holes are drilled in the mounting surface of the car, no bracket is needed. If drilling in the car is not an option, the included brackets can be used, which have standard 6½" mounting holes and the Ford non-symmetric four hole pattern, as well as other non-standard patterns. When using the brackets the depth becomes 1.892" and the mounting height becomes 1.068".

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