Infinity's Ceramic Metal Matrix Diaphragm speaker cones, first used on their award-winning Prelude home speakers, are constructed by bonding an aluminum cone to two layers of ceramic to form a rugged, lightweight, and extraordinarily accurate driver. Now you can put C.M.M.D. technology in your car's 6-1/2" speaker openings with the 3-way 63.5i Kappa speakers.

The 63.5i's C.M.M.D. Plus One woofer cone is approximately 30% larger than other 6-1/2" speakers, thanks to a unique basket design and hi-roll rubber surround that generate impressive bass while minimizing unwanted resonances. Bright highs flow from the C.M.M.D. dome tweeter, while a metallic planar EMIT supertweeter ensures that you don't miss any piece of high-frequency information.

Voice-matched 2-way crossovers (customized for the 63.5i) ensure that frequencies are routed to the appropriate driver, so the woofer and tweeter operate as efficiently as possible. These speakers include adapters for 6-3/4" openings.

Priced per pair

Product Highlights:

  • Plus One C.M.M.D. woofer cone
  • hi-roll rubber surround allows greater woofer movement
  • 1" C.M.M.D. dome tweeter
  • 1-1/8" metallic planar EMIT supertweeter
  • 2-way external crossovers (18 dB/octave, 3,500 Hz high- and low-pass)
  • sensitivity 90 dB
  • frequency response 45-22,000 Hz
  • recommended power range 2-75 watts RMS
  • peak power handling 225 watts
  • top-mount depth 2-3/16"
  • adapter rings for 6-3/4" applications included
  • 3-year warranty

Why replace your car's original speakers?

The speakers that originally came in your car were made from inexpensive materials, designed to create acceptable sound at the lowest possible cost to the manufacturer. If you love music, you deserve better. Name-brand aftermarket speakers deliver fuller, richer sound with considerably more detail and nuance, and they're capable of playing louder and cleaner than factory speakers. Connect new speakers to your factory radio and you'll get the best possible sound from your dealer-equipped system. Pair them up with a new car stereo for a level of enjoyment that can rival a high-fidelity home audio experience.

Hands-on research

What's in the box?

Download owner's manual

  • Two 3-way speakers
  • 2 Grilles
  • 2 Grille rings
  • 2 In-line crossovers
  • 2 Plastic GM/Chrysler adapter brackets
  • 2 Metal 4-hole 6-1/2" adapter rings
  • 2 Metal multi-hole 6-3/4" adapter rings
  • Eight 1" self-tapping screws
  • Eight 1/2" self-tapping screws
  • 8 Machine screws
  • 8 Speed clips
  • Instructions
  • Warranty/registration card

Product Research

Features

Ceramic Metal Matrix Diaphragm (C.M.M.D.): Infinity's C.M.M.D. technology delivers accurate performance with dramatically reduced distortion for incredibly lifelike sound. Additionally, the C.M.M.D. drivers can withstand extreme temperatures, moisture, humidity and sunlight.

C.M.M.D. Plus One Woofer Cones: These speakers use cones approximately 30% larger 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. In addition, the C.M.M.D. cones virtually eliminate coloration due to cone flexing, resulting in less distortion and superior accuracy.

Surrounds: The hi-roll rubber surrounds allow the woofers a greater range of movement, resulting in longer X-max and more bass output.

C.M.M.D. Dome Tweeters: Each speaker has a 1" C.M.M.D. dome tweeter that offers superior stiffness and damping compared to traditional metal domes.

EMIT Super Tweeters: Each speaker uses a 1-1/8" metallic planar EMIT tweeter for bright, well defined high frequency reproduction.

2-Way Crossovers: These speakers include computer-optimized, voice-matched crossovers. Each crossover features an 18dB/octave, 3.5kHz high-pass network for the tweeter and an 18dB/octave, 3.5kHz low-pass network for the woofer.

Crossover Connections: Each crossover has an 11" input lead terminated with bare wire and two 18" output leads, one for the woofer and one for the tweeter, terminated with female quick-slides. The positive woofer lead has a 0.205" female quick-slide and the negative woofer lead has a 0.110" female quick-slide. The positive tweeter lead has a 0.250" female quick-slide and the negative tweeter lead has a 0.187" female quick-slide. These quick-slides connect directly to the woofer and tweeter terminals on each speaker.

Crossover Dimensions: L=3.458", W=1.734", H=1.087"

Adapter Rings: These speakers come with three different mounting adapters. The adapters allow the speakers to be installed in a 6-1/2" opening, a 6-3/4" opening, or an oversized 6-3/4" GM/Chrysler opening.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Be the first to review this product
Great Gear Giveaway

Submit a review and then enter to win a $500 rewards card

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
  Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

Get everything you’ll need to enjoy your new Infinity Kappa 63.5i

Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
Keep your speakers clean and dry. They compress to fit behind your speakers.
The right tools will help keep your installation simple and clean.
Dynamat 10415 Xtreme Speaker Kit

Dynamat 10415 Xtreme Speaker Kit

Two 10-in. x 10-in. Sheets

Item #: 15410415

(46)

$26.99
Add to Cart
XTC 6-1/2

XTC 6-1/2" Speaker Baffles

Protect your speakers (3-1/4" depth)

Item #: 237XT65

(156)

S&G Tool Aid 87650

S&G Tool Aid 87650

Door Trim and Panel Removal Tool

Item #: 18187650

(71)

S&G Tool Aid 87615

S&G Tool Aid 87615

Window and Door Clip Removal Tool

Item #: 18187615

(12)

Install Bay IB35400

Install Bay IB35400

Premium door panel and trim tool

Item #: 12035400

$15.99
Add to Cart