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Infinity Kappa 52.11I

5-1/4" 2-Way Kappa Series Coaxial Car Speakers

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• Peak Power: 165W
• RMS Power: 55W
• 2-Way Coaxial Design
• 2 ohm Impedance
• Formed Glass Fiber Cone
• Rubber Surround
• 1" Soft Dome Fabric Tweeters

Learn more about the 5211i

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

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Product Highlights


• Peak Power: 165W
• RMS Power: 55W
• 2-Way Coaxial Design
• 2 ohm Impedance
• Formed Glass Fiber Cone
• Rubber Surround
• 1" Soft Dome Fabric Tweeters

Description


Infinity brand icon

Authorized dealer



High Fidelity Kappa Series

The 2-ohm nominal impedance of the Infinity Kappa 52.11I coaxial speakers allows compensation for any added resistance in thin factory-installed speaker wiring and provides more output than factory speakers in its class. The high sensitivity of the Kappa Series makes it ideal for upgrading a factory-installed system’s existing speakers with very noticeable fidelity improvements. The beautiful chrome inserts on the grille match modern interiors, and there are no visible mounting screws. With a modern look, articulate highs and strong lows, the Kappa series speakers are perfect for any factory or aftermarket sound system. Pick yours up today at SonicElectronix.com!


The Sound of quality

Sonic Electronix, one of the leaders in car audio, recently visited Harman, the premium global audio and infotainment group, at their research and development locations in Northridge, California and Detroit, Michigan. The purpose of these visits was to utilize and combine the powerful brand of Harman and the industry leading knowledge behind Sonic Electronix to begin working together on developing future car audio projects.


General Features:

  • 5-1/4" Kappa Series 2-Way Car Speakers
  • Power Handling:
    • Peak: 330 watts per pair / 165 watts each
    • RMS: 110 watts per pair / 55 watts each
    • Recommended Minimum Power: 25-165 watts each
  • Carbon Injected Glass Fiber cone material
  • Plus One cone technology offers more cone area than other speakers in its class
  • Rubber speaker surround
  • 1" Soft Dome edge-driven Fabric tweeter construction
  • Adjustable, 0 or +3dB push-button tweeter level attenuation control
  • UniPivot tweeter allows you to aim the tweeter at the listener for better imaging
  • High temperature voice coil reduces distortion
  • Vented magnet and motor assembly cool the voice coil
  • Gold-plated, screw-type speaker terminals for a secure connection
  • Injected Carbon Glass Matrix (iCGM) speaker frames
  • High-quality passive crossover components
  • Protective, soft, rubber-finish grilles
  • Protective magnet boot cover
  • 2 ohm impedance
  • Frequency response: 55-25,000 Hz
  • Top-mount depth: 2-3/16"
  • Sensitivity: 94dB
  • Authorized Internet Dealer
  • 3-year Manufacturer's Warranty

Priced Per Pair



PROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov

Product history:

Infinity 52.11I thumbnail
(newest, current model)
Infinity 52.9I thumbnail
(previous model, replaced by Infinity Kappa 52.11I)

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Specifications & Details


Speaker Specifications
Series
Reference Series
Priced Per
Pair
Speaker Size
5-1/4"
Design
2-way Coaxial
Tweeter Design
Dome
Tweeter Size
1"
Tweeter Composition
Cloth
Woofer Composition
Carbon Composite
Woofer Surround
Rubber
Peak Power Handling
165 watts
RMS Power Handling
55 watts
Sensitivity
94 dB
Frequency Response
55 - 25000 Hz
Impedance (Per Voice Coil)
2 ohm
Shallow Mount Installation
No
Top-Mount Depth (Mounting Depth)
2-3/16"
Cutout Dimensions
4-11/16" x 4-11/16" 
General specifications
Speaker Grilles
Yes
Warranty and Return Policy
Parts Warranty Duration
3 years
Labor Warranty Duration
3 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

52.11I

Weight:

5.00lbs

Internal SKU:

5211i

Internal Product ID:

60694

Product and How-to Videos


  • Harman International: The Pursuit of Great Sound
  • Infinity Kappa Series Speakers | Coaxial and Component Car Speakers

Customer Ratings & Reviews


Infinity Kappa 52.11I thumbnail image

5 star
59%
4 star
35%
3 star
0%
2 star
0%
1 star
6%



Durability
4.3
Value
4.6
Features
4.6
Design
4.6
Usability
4.6

Customer Reviews

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5 1/4" sound good, but I think I would buy something else if I could do it again. Not having a speaker with a dust cap in a SUV is proving to be a bad idea.

The following review is for a previous version (52.9I).

They sound good, but as I only got the 5 1/4" ones I can't really comment on loudness as the 5 1/4's seem pretty weak compared to anything larger. I have 4 of them in my 2010 Toyota Rav4 and wish I would have gone with at least 6 1/2" speakers.

I thought I was very careful with cleanliness and handling, but I had one speaker that acted up after installation and had to purchase another pair to replace it (It had a crackle). The design is neat with the pivotable tweeter, but it leaves the coil vulnerable to damage from sand and other dirt that would normally be kept out by a dust cap on a conventional speaker. I can't say I'd suggest this design of speaker for a SUV or pickup that will see any dirt. Overall I would not buy these again for my application.

By Bentworker on October 5, 2010

20 found this helpful


Great value!

The following review is for a previous version (52.9I).

Great sound! They are in a jeep cj5 and sound great!

By Rob on November 15, 2010

18 found this helpful


Awesome speakers, couldn't be happier

The following review is for a previous version (52.9I).

I could not be happier with the sound of these speakers. Pristine, crystal clear sound, with a warmth that makes it sound like you are sitting in the same room as the artist you are listening to while they perofrm their song. Love them.

By Jacob on July 7, 2009

18 found this helpful


So far so good !!

The following review is for a previous version (52.9I).

I installed four of these speakers in my truck and they sound great !! I purchased these because I replaced the Infinity Kappa speakers that I installed 15 years ago. Need I say more... It's a great product for a reasonable price.

By Doug on January 14, 2014

19 found this helpful


INFINITY KAPPA 52.9I

The following review is for a previous version (52.9I).

I've been a stereo installer for over 10 years and Infinity speakers are what I use the most because of their clarity and ability to handle lots of power. These are some of the most crisp speakers on the market and a great buy on from this site. I'm getting ready to customize three more Harley's and they will all have INFINITY KAPPA products from front to back. I give it a 4 overall because I would like to see them up the RMS watts.

By TEX on November 16, 2009

18 found this helpful


Bang for your buck

The following review is for a previous version (52.9I).

Good product for the price, not the best speakers but they are better quality than I expected for the price.

By C F Kinney on September 16, 2009

16 found this helpful


Very good deal for the money

The following review is for a previous version (52.9I).

I am very happy with these speakers great bang for your buck.

By barry on August 24, 2011

14 found this helpful


Infinity Kappa 52.9

The following review is for a previous version (52.9I).

I would recommend these to anyone. I loved the highs coupled with the nice mids. definitely recommend hooking it up through amp though. make sure the receiver is of high quality it will effect output of speakers more than anything. overall very good speakers with good sound quality.

By Trenton on May 31, 2010

15 found this helpful


Best bang for your buck

The following review is for a previous version (52.9I).

Very clear, loud and accurate sound. Even with just head unit power. You wont be dissappointed.

By Yotaguy on May 8, 2012

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Great sound

The following review is for a previous version (52.9I).

I'm very pleased with the sound and clarity of these speakers. Well worth the money.

By Casey on September 17, 2013

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