Skip Navigation

Infinity Kappa 52.11i

5-1/4" 2-way car speakers

42 Reviews | 3 questions - 5 answers

Find what fits your vehicle

Can't find your exact vehicle?

Item # 1085211I

In Stock

Was: $169.99

Price Break: -$34.00

Installation gear for most cars

Add to Cart

Ask an expert

Our VA-based experts can help.

1.888.955.6000

ChatEmail

Overview

Our take on the Infinity Kappa 52.11i

Infinity's Kappa Series 52.11i 5-1/4" speakers continue in the tradition of this legendary line of speakers, offering rugged construction and impressive sound quality. Once installed, these speakes will bring out every nuance and detail in your favorite music tracks, making time spent in your car seem more like a concert than a commute.

Infinity Kappa.11i

Legendary sound

Infinity's Kappa Series 52.11i 5-1/4" speakers continue in the tradition of this legendary line of speakers, offering rugged construction and impressive sound quality. Once installed, these speakes will bring out every nuance and detail in your favorite music tracks, making time spent in your car seem more like a concert than a commute.

Large soft dome tweeters

If you're looking for natural-sounding high frequencies, Infinity uses edge-driven 1" soft dome tweeters in this system. The "edge-driven" design results in a larger tweeter that handles more power and delivers smooth response way down into midrange frequencies not covered by smaller "W"-shaped domes. You'll hear a more clearly defined soundstage where you can picture the placement of every instrument.

Infinity's UniPivot design allows you to aim each tweeter toward your ears, so you enjoy excellent stereo imaging even if the speakers are mounted way down low in your doors. Each tweeter also features a level control switch so you can boost the brightness to your taste.

Glass fiber woofer with Plus One+ technology

If you like bass, the Kappa glass fiber woofer holds 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. Infinity's Plus One+ woofer technology extends the cone right up to the edge of the basket, giving you more surface area than with most comparable speakers. A bigger cone means more bass to complement the superior high-frequency response.

Great for any system

These 2-ohm speakers are sensitive enough that you can power them with an aftermarket stereo, but you'll get your best results feeding them plenty of power from an outboard amp — up to 55 watts RMS. Grilles are included.

Fit good with supplied adapters and sound good. These are installed in a work van with lots of noisy stuff in the back. Blew up original spkrs these are doing good so far

JAMES, Joliet Illinois

What's in the Box:

  • Two 2-way speakers
  • 2 Grilles
  • 2 Grille rings
  • Eight 1-3/8" Self-tapping screws
  • 8 Speed clips
  • 2 Adhesive backed foam gaskets
  • 2 Adhesive backed Infinity logo badges
  • Instructions

Product Highlights:

  • 5-1/4" 2-way car speakers
  • Plus One+ glass-fiber woofer cone with hi-roll rubber surround
  • 1" edge-driven, soft dome tweeter
  • 2-ohm impedance
  • power range: 5-55 watts RMS (165 watts peak power)
  • frequency response: 55-25,000 Hz
  • sensitivity: 94 dB
  • top-mount depth: 2-3/16"
  • warranty: 3 years
  • Our 60-day money-back guarantee
Reviews

Infinity Kappa 52.11i Reviews

Average Customer Review(s):

(42 Reviews)
rewards card

Submit a review and enter to win a $350 rewards card

Review this product

Thanks for submitting your review

Most reviews are processed and published within 5 business days. You will receive a confirmation email once your review has been published.

Your Review

Use the stars below to rate the overall product on a scale of 1-5
1500
Upload your photos

Not visible. Email associated with order.
(e.g., Charlottesville, VA)

Additional Fields (optional)

500
500

By submitting this review, you agree to our terms and review guidelines.

Filter by rating

Customer photos


<< >>
Details

Hands-on research

Features and Specs

General
Speaker Size 5 1/4
Design 2-way
Tweeter Design 1" Dome
Tweeter Composition Textile
Woofer Composition Formed 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 94
Frequency Response 55 - 25k Hz
Minimum RMS Wattage 5
Maximum RMS Wattage 55
Peak Power Handling (Watts) 165
Impedance (Ohms) 2
Top-mount Depth (Inches) 2 3/16
Bottom-mount Depth (Inches) 2 3/8
Cutout Diameter or Length (inches) 4 11/16

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 a significant increase in efficiency.

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

iCGM frames: The Kappa series speaker baskets are made of composite Injected Carbon Glass Matrix (iCGM). iCGM is lighter and stronger than stamped steel; it retains its shape, even when mounted on uneven surfaces (common in car mounting locations), plus offers exceptional damping of any resonances.

Edge Driven Dome Tweeters: Each speaker has a 1" Edge-driven textile soft dome tweeter. An edge-driven tweeter has better dispersion characteristics and allows 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 adjustable output level, +0 dB (flat) and +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 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.

Terminals: The input terminals are gold-plated set screws that will accept up to 12 gauge bare wire.

Power Handling: Although Infinity lists the RMS power handling as 55 watts, they also list the recommended power range as 5-75 watts RMS. We've opted to list the more conservative 55 watt RMS figure on the specifications page.

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 verify what’s in the box, 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.

Accessories
Q & A

Customer Q&A

3 questions already asked

For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  Nov 17, 2015 ]  Staff
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your Harley and give you the details on if this will fit and what you will need for an installation in your Harley. [ Krissy  Aug 31, 2015 ]  Staff
But according to the specs, it's listed as 5-50w rms. I hope the speakers don't die. [ Vamsy  Jan 19, 2015 ]
Yes, the speakers will be just fine; I currently have mine paired with a Rockford Fosgate PBR300X4 which outputs 75 watts RMS x 4 for almost two years with no issues. I was always taught that it is not power that kills speakers, it is distortion that kills speakers (within reason, of course....you wouldn't pair a 50 watt speaker with a 600 watt amplifier and expect that speaker to hold up too well). [ KEVIN R  Jan 19, 2015 ]
Yes, 70 watts rms is within the acceptable range of these speakers. I am very happy with my purchase of these. [ DARION  Jan 18, 2015 ]
Articles