Contact us
Close contact box

Infinity Kappa Perfect 900

Kappa Perfect Series 6"x9" component speaker system

Item # 108PERF900

Infinity's flagship Kappa Perfect Series speakers look so good and feel so solidly built that it's a shame you...

Find what Fits your car

Infinity's flagship Kappa Perfect Series speakers look so good and feel so solidly built that it's a shame you...

California customers:
Please click here for your Proposition 65 warning.

Need help?
Contact our Virginia-based experts.

Item # 108PERF900

Ships free today

In stock
$629.95

Other options

About the Infinity Kappa Perfect 900

Put Perfect sound in your car

Infinity's flagship Kappa Perfect Series speakers look so good and feel so solidly built that it's a shame you probably won't lay your eyes on them again after they're installed, but it's a small price to pay to experience unrivaled audio in your vehicle. This Kappa Perfect 900 6"x9" component system is a heart-and-soul Infinity creation, utilizing the very best technology and materials available to their engineers.

Put Perfect sound in your car

Infinity's flagship Kappa Perfect Series speakers look so good and feel so solidly built that it's a shame you probably won't lay your eyes on them again after they're installed, but it's a small price to pay to experience unrivaled audio in your vehicle. This Kappa Perfect 900 6"x9" component system is a heart-and-soul Infinity creation, utilizing the very best technology and materials available to their engineers.

Infinity Kappa Perfect 500

Add the optional Kappa Perfect 3-1/2" midrange speaker to this system and change the crossover settings with the flip of a switch

High-definition tweeters

Prepare to hear nuance and detail in your favorite music that you never knew was there. Infinity uses edge-driven polyimide dome tweeters to achieve a frequency response up to 30,000 Hz. The "edge-driven" design creates a larger tweeter that handles more power and delivers smooth response way down into midrange frequencies as well. You'll hear a more clearly defined soundstage where you can picture the placement of every instrument.

Tweeter mounts included

While installing tweeters can sometimes prove challenging, Infinity includes versatile hardware for surface- or flush-mounting, making the job much easier in most vehicles.

Carbon fiber woofer with Plus One+ technology

Infinity uses a carbon fiber woofer that weighs less than traditional materials, so you don't need a ton of power to drive this woofer, but the oversized voice coil certainly allows for awesome power-handling if you're driving this system with an amp. 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. The included external crossovers send the appropriate frequencies to the tweeters and woofers.

Want a 3-way Kappa Perfect system?

Infinity makes it easy to turn this Kappa Perfect 2-way component system into a 3-way system with the addition of optional 3-1/2" midrange speakers. Simply flip the switch on each Kappa Perfect crossover to a 3-way system configuration for a well-rounded sound. These 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 150 watts RMS.

READ LESS

Product highlights:

  • component speaker system includes 2 woofers, 2 tweeters, and 2 crossovers
  • 6"x9" Plus One+ carbon fiber woofer
  • edge-driven polyimide dome tweeter
  • mounting brackets for easier tweeter installation in factory locations
  • switchable 2-way and 3-way external crossover network in weatherproof housing
  • 3.5-ohm impedance
  • handles up to 150 watts RMS (600 watts peak power)
  • frequency response: 40-30,000 Hz
  • sensitivity: 91 dB at 2.83 volts
  • woofer top-mount depth: 3-3/8"
  • grilles included
  • warranty: 3 years
  • Our 60-day money-back guarantee
  • MFR # Perfect 900

What's in the box:

  • 2 Woofers
  • 2 Crossovers
  • 2 Tweeters (each with 10" wire attached)
  • 2 Flush mount housings
  • 2 Plastic locking nuts
  • 2 Surface mount housings
  • 2 Woofer grilles
  • 2 Woofer grille rings
  • 2 Woofer bottom mount rings
  • Eight 1-1/8" Screws
  • Eight 1" Screws
  • Four 1/2" Flat head screws
  • 8 Speed clips
  • 4 Adhesive backed foam gaskets
  • Installation instructions

Customer reviews

Loading reviews...

Infinity Kappa Perfect 900 reviews

Average review:

3 reviews

Thanks for submitting your review

Filter by rating

Customer photos

Sort reviews

Sort by:
Items per page:
View page:

Verified customer (What's this?)
Verified employee purchase (What's this?)

Pros:

Cons:

Crutchfield response

<< >>

More details on the Infinity Kappa Perfect 900

Pat M.

Features & specs

General
Speaker Size 6x9
Design 2-way
Tweeter Design Edge-Driven Dome
Impedance (Ohms) 3.5
Tweeter Composition Polyimide
Woofer Composition Carbon 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 91
Frequency Response 40 - 30k Hz
Minimum RMS Wattage ---
Maximum RMS Wattage 150
Peak Power Handling (Watts) 600
Top-mount Depth (Inches) 3 3/8
Bottom-mount Depth (Inches) 4 3/16
Cutout Diameter or Length (inches) 0

Product Research

Features

Plus One Woofer Cones: The Plus One woofer 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.

Terminals: The woofers' input terminals are set screws that will accept up to 14 gauge bare wire.

Tweeter Mounting: Using the included housings the tweeters can be flush mounted or surface mounted. The tweeter can pivot in the flush mount housing, so it can be directed to optimize imaging.

Tweeter Dimensions:

  Flush Mount Surface Mount
Mounting Height 0.473" 1.33"
Mounting Depth 1.383" screw depth
Frame Diameter 2.661" 2.25"
Cutout Diameter 2.125" N/A

Crossovers: The crossovers can be set to 2-way (the default position, for use with the included woofer and tweeter) or 3-way (for use with the included drivers plus the optional Kappa Perfect 300M midrange, sold separately). Each crossover also has a tweeter output level switch (choose between high and low output). The inputs and outputs are screw terminals that will accept bare wire or spade connectors up to 0.275" wide. There are four mounting holes in the base of each crossover.

Crossover Dimensions:

  • Length: 5-1/2"
  • Width: 7-15/16"
  • Height: 1-5/8"

Loading accessories...

Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
One of the very few high quality 6x9 component sets that are optimized for use as 3-ways as well [ Kenton  Jun 04, 2019 ]

3 questions already asked

Q
On the Infinity website they claim that this system will fit my 2016 Ram 1500 regular cab base model pickup. Why does Crutchfield say it doesn't? I'd rather buy it from you guys.
[ Chuck  Jan 25, 2019 ]
1 answer
A
The 6x9 speaker fits the door opening perfectly. I believe Crutchfields site says it doesn't fit because of the tweeter not being a factory piece. I moved it around the cab with tape for a couple of days until I found a spot the sounded the best for me which ended up being on the upper part of the door panel.
[ Randy  Jan 26, 2019 ]
Q
Can someone tell me why there are outputs on the crossover for. Woofer, Mid, and Tweets. There's only the 6x9 driver and the tweeter. Hmmmm??
[ Timmm  Jul 24, 2018 ]
2 answers
A
Because Infinity also sells a 3 1/2" mid range kappa perfect that can be added for more range. I bought them and put them in the dash of my truck to replace the factory speakers.
[ Randy  Jul 24, 2018 ]
A
It comes with a 3 way crossover for adding a midrange if you decide too purchase it. If you don't buy the midrange just leave it empty.
[ JaRon  Jul 24, 2018 ]
Q
Can you tell me where the crossover points are and what kind of slope 6 db, 12 db etc? Thank You
[ Bob Kraemer  Jun 16, 2018 ]
1 answer
A
I'm afraid Infinity doesn't provide specifics about the crossover points and/or slope for the Kappa Perfect 900 component speakers. For more details on that, feel free to check out Infinity's support site directly: https://www.infinityspeakers.com/support-knowledgebase.html You can also contact a Crutchfield Advisor directly by phone (888.955.6000) or online chat to discuss further.
[ Larry  Jun 23, 2018 ]  Staff

Loading articles...

Compare all details
TOP