Why Shop Sonic Free Shipping Free Tech Support Easy Returns Low Price Guarantee Details
Print

Infinity Kappa 42.7i

4" 2-way Kappa Series Speakers (KAPPA42.7I)

5.0

(2 reviews)

Read 2 reviews

Write a review

The product on this page is discontinued.

Will this fit my car?

Select Vehicle >
  • 4" 2-Way Coaxial Car Audio Loudspeakers
  • Power Handling:
    • Peak: 150 watts
    • RMS: 50 watts
  • Plus One woven-glass-fiber woofer cone looks great and sounds even better
  • Edge-driven MMD-Dome tweeter with UniPivot: Aim the sound at your ears, not the floor.
  • SLI high-output design
  • Neodymium motor structure with integrated heatsink
  • Outboard passive crosover with air core inductors and poly caps
  • Tweeter level adjustment on tweeter: Just rotate the tweeter to add 3dB to your highs!
  • Impedance: 2 Ohms
  • Grilles included
  • 3-year SonicElectronix.com warranty

Priced Per Pair

Product History:
Infinity Kappa 42.7i thumbnail
(newest, current model)
Infinity Kappa 42.5i 4
(previous model, replaced by Infinity Kappa 42.7i)
Speaker Specifications
Speaker Size4"
Design2-way
Tweeter DesignDome
Tweeter CompositionM.M.D. (Metal Matrix Diaphragm)
Woofer CompositionWoven Glass Fiber
Woofer SurroundRubber
Peak Power Handling150 watts
RMS Power Handling50 watts
Sensitivity93 dB
Frequency Response75 - 25000 Hz
Impedance (Per Voice Coil)2 ohms
Top-Mount Depth1-13/16"
Bottom-Mount DepthN/A
Cutout Dimensions3-7/16"
Warranty and Return Policy
Return Policy Standard Return Policy
Customer Review Summary for Infinity Kappa 42.7i
Average Customer Rating is 5.0 out of 5 stars:
5.0
based on 2 Reviews
Share your thoughts with others:
Write a Review
Rating Distribution:
5 star:
.
100%
4 star:
.
0%
3 star:
.
0%
2 star:
.
0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
5.0
Value
5.0
Features
5.0
Design
4.5
Usability
5.0
what's this?
Most Helpful Customer Reviews:
December 13, 2007 HUGE SOUND!
Review by
Chris from Riverview, MI
Overall
Durability
Value
Features
Design
Usability
These little things punch out huge sound w/out distortion. They test my 5-chan amp to be honest. Go with these, you won't regret it.
Help other customers find the most helpful reviews
Was this review helpful to you?
Yes No
 Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
July 13, 2007 Don't be discouraged by the size
Review by
Tony from San Bruno, CA
Overall
Durability
Value
Features
Design
Usability
These may be small but they pack a lot of power. I needed some small speakers for my jeep and with two of these they really made it loud. They provide really clear and crisp sound and the rotating tweeter for the extra boost is awesome and easy to access. I paid list price but Sonix really has a good deal here. Wish I would have seen it earlier. I would recommend this product to anyone. Infinity is all I buy.
Help other customers find the most helpful reviews
Was this review helpful to you?
Yes No
 Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
Speaker Wire
Upgrade your factory speaker wire to aftermarket speaker wire and hear the difference! Using thicker gauges, newer technology, and higher quality materials, aftermarket speaker wire is key to upgrading the sound in your car.
 ProductPriceAdd?
20 ft. of 16 AWG KICKER X-Series Speaker Wire20 ft. of 16 AWG KICKER X-Series Speaker Wire
Get high quality sound from Kicker's twisted-pair, true to gauge speaker wire.		$19.99
50 ft. of 14 AWG StreetWires Speaker Cable50 ft. of 14 AWG StreetWires Speaker Cable
Streetwires Super Cable provides a zero-grip insulation for a smooth install as well as true gauge twisted wire construction.		$29.99
50 ft. of 16 Gauge Monster XLN Series Speaker Cable50 ft. of 16 Gauge Monster XLN Series Speaker Cable
Upgrade to clean and clear sound with Monster Cable's Xtra Low Noise (XLN) construction.		$35.00
Sound Dampening Material
Get optimal sound from your new speakers with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
 ProductPriceAdd?
Dynamat Xtreme Speaker KitDynamat Xtreme Speaker Kit
Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!		$21.99
Dynamat Dynaxorb Speaker PakDynamat Dynaxorb Speaker Pak
Revolutionary damping material designed to prevent distortion caused by the back wave of a speaker interfering with the front wave.		$19.99
Dynamat Rubber RollerDynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat products!		$18.99
Ballistic Speaker KitBallistic Speaker Kit
Eliminate speaker distortion, road noise, and rattles with this sound dampening material from Ballistic.		$15.99
Speaker Baffles, Spacers, and Depth Extenders
Mount your speakers in the location that you need with these speaker spacers, extenders, and adapters.
 ProductPriceAdd?
3/4" Depth Extender for 4" Speakers3/4" Depth Extender for 4" Speakers
Add 3/4" of extra space when installing your speakers.		$6.99
Installation, Tools & Accessories
Get all of the tools and accessories to install your new speakers like a professional, or take your car to an expert and have them installed by redeeming professional installation cards.
 ProductPriceAdd?
Door Panel & Upholstery Remover ToolDoor Panel & Upholstery Remover Tool
The ideal tool for removing your car's door panels to replace you speakers!		$11.99
Universal Window Handle Remover ToolUniversal Window Handle Remover Tool
Designed to easily remove the manual window handles without breaking any interior pieces.		$4.99
Universal Wire Puller & GrabberUniversal Wire Puller & Grabber
Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!		$6.99
16-14 AWG Butt Connectors16-14 AWG Butt Connectors
These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!		$4.99
Tone Generators and Sound Testing Equipment
Optimize your new system's sound quality by testing and calibrating all of your components with these items.
 ProductPriceAdd?
AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD		$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.		$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.		$12.99

Product Summary

Manufacturer: Infinity
Model number: 42.7i
UPC: 050667034269
Weight: 6.00 lbs
Internal SKU: 427i
Internal product ID: 5924

Why Sonic Electronix?

February caption contest - win a Powerbag!

Customer Testimonial

Extremely fast & helpful customer-service, resolved my issue in less than an hour. Loyal Sonic customer!

- Eskimo65 from Escondido, CA

See more…

Recently Viewed Items

427i thumbnail

0 Gauge Complete Amplifier Installation Kit

427i thumbnail

6-1/2" 2-way Performance Series Marine Audio Speakers

427i thumbnail

(METAL, Not Plastic) Chrome License Plate Frame with Slim Built-in Camera