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Infinity Reference X REF-6402cfx

4"x6" 2-way car speakers

Item #: 108R6402CX

In Stock

11 Reviews | 2 questions - 2 answers

Was:$119.99 Sale ends 12/27

Sale:-$24.00

Free Installation gear for most cars

Your price: $95.99 pair Earn up to 96 Rewards points

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Designed for more clarity

Do you want to hear the details you've been missing in your car's sound system? You'll enjoy exceptional clarity from Infinity's Reference X Series REF-6402cfx 4"x6" speakers. Infinity uses textile dome tweeters to give you amazing levels of detail without sounding harsh.

REF-6402cfx 4

Larger woofer for more bass

The REF-6402cfx features tough polypropylene woofers and durable hi-roll rubber surrounds that deliver strong performance. Each Plus One+ woofer sports a significantly larger cone than speakers of similar size, adding plenty of punch to the speaker's smooth and accurate highs.

Great for any power supply

You can power these speakers with up to 45 watts of RMS power — they'll work great with an external amplifier, but they're also sensitive enough to be a good match for a factory or aftermarket stereo. Plus, Infinity comes up with a safe way to get a little more power out of your system — these 3-ohm speakers combine with the speaker wire in your car so your car stereo sees actual 4-ohm impedance. Grilles are not included — factory grilles are appropriate for most installations.

Product Highlights:

  • 4"x6" 2-way speakers (pair)
  • Plus One+ polypropylene woofer cone with hi-roll rubber surround
  • 1" edge-driven textile dome tweeter
  • True Four Ohm Impedance technology: speaker's 3-ohm impedance combines with speaker wire impedance for a 4-ohm load
  • compatible with virtually all factory or aftermarket car stereos
  • power range: 5-45 watts RMS (135 watts peak power)
  • frequency response: 75-21,000 Hz
  • sensitivity: 92 dB
  • top-mount depth: 1-7/8"
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research

What's in the box?

Download owner's manual

  • Two 2-way speakers
  • 2 Standard 4x6 mounting adapters (installed)
  • 8 Machine screws (attaching speakers to mounting brackets)
  • 2 Adhesive foam gaskets
  • 2 Infinity logos
  • Template on box
  • Owner's manual (English/ Danish/ German/ Spanish/ Finnish/ French/ Italian/ Dutch/ Polish/ Portuguese/ Russian/ Swedish/ Turkish/ Chinese)

Features and Specs

General
Design 2-way
Tweeter Design Edge-Driven Dome
Tweeter Composition Textile
Woofer Composition Polypropylene
Woofer Surround Rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity 92 dB at 2.83 volts
Frequency Response 75 - 21k Hz
RMS Power Range (Watts) 5-45
Peak Power Handling (Watts) 135
Impedance (Ohms) 3
Top-mount Depth (Inches) 1 7/8
Bottom-mount Depth (Inches) N/A

Product Research

Features

Plus One+ Woofer Cones: Each speaker uses a cone significantly larger than other speakers of the same size. This is accomplished by using a unique basket design and hi-roll surround. The Plus One+ design offers greater bass output and increased efficiency.

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

Textile Dome Tweeters: Each speaker uses an edge-driven textile dome tweeter for smooth, accurate highs.

True Four Ohm Impedance Technology: The speaker's 3-ohm impedance combined with the impedance of your speaker wire provides a true 4-ohm load to your connected head unit or amplifier.

Power Handling: Although Infinity rates the 6402cfx speakers at 45 watts RMS (continuous average), they also recommend amplifiers with a power rating from 5 to 50 watts RMS.

Bottom Mounting: While the standard 4x6 adapters appear to be easily removable, they are glued in place at four points around the perimeter (in addition to the four screws, which are obvious). With the adapters in place, the speakers fit many top mount standard 4x6 and metric 4x6 applications. If the adapters are removed the speakers will fit additional top mount metric 4x6 applications, as well as bottom mount metric 4x6 applications.

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.

Infinity Reference X REF-6402cfx Reviews

Average Customer Review:

11 reviews
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Infinity

Written By Irby t a, Lafayette la on Thursday, September 04, 2014

Crutchfield Customer Review (What's this?)

Sounds good in truck The 6.5 next. The fix great

HUGE UPGRADE

Written By Derrick F., Arvada, CO on Monday, June 16, 2014

Crutchfield Customer Review (What's this?)

These speakers are a huge improvement over our stock ones. Especially since the stock ones were made out of paper. Install was super easy.

Pros: Great sound, Ease of install, quality material.

Infinity Reference X REF-6402cfx

Written By Anonymous, Kettering, OH on Friday, April 04, 2014

Crutchfield Customer Review (What's this?)

The Infinity REF-6402cfx speakers recommended by a Crutchfield phone rep did not fit the back doors of my 2007 Chevy, Silverado ext, cab. I returned them for a pair of Infinity REF-6502ix which fit perfectly and sound fantastic.

Great Product as always

Written By Adam A, Palatka, FL on Wednesday, December 18, 2013

Crutchfield Customer Review (What's this?)

Just another great Infinity product!

Pros: Clear sound quality at a low price

Nothing overly special, but decent

Written By Anonymous, Kennesaw, GA on Thursday, July 18, 2013

Crutchfield Customer Review (What's this?)

I was recommened these speakers from a crutchfield advisor as a good all around speaker. I'd say they're fairly good quality. The highs and mids on them are crystal clear but the bass is reletively lacking presence but it is afterall a 4x6 speaker. Doesn't sound badat all, but I think its lacking on the bass side a tad

Pros: Awesome highs and mids, fit perfectly with no modification required

Cons: Simply a lack of bass

Infinity Reference X REF-6402cfx

Written By Robert, San Antonio, TX on Wednesday, May 22, 2013

Crutchfield Customer Review (What's this?)

I replaced the worn out speakers in my 2003 Silverado with these speakers. The installation was pretty easy with the helpful links on the website. The speakers sound great and I couldn't be happier. I might just look into a new radio in the future to go with the new speakers.

great product

Written By NateT, Boise, ID on Friday, May 10, 2013

Crutchfield Customer Review (What's this?)

Great sound, good fit, in a small package.

Great

Written By Andycapt, Jersey cape on Thursday, May 02, 2013

Crutchfield Customer Review (What's this?)

Just plain great. 6030's in the front

Pros: Always good stuff from these people

Cons: None

Great Speakers!

Written By Shane, Huntsville, AL on Sunday, April 28, 2013

Crutchfield Customer Review (What's this?)

Outstanding replacement of mediocre factory speakers! These sound great even with factory stereo. I am replacing factory stereo soon and can't wait to hear the complete setup!

Pros: Sound, ease of installation, value

Infinity Reference X REF-6402cfx

Written By Anonymous, Fluker, LA on Tuesday, March 05, 2013

Crutchfield Customer Review (What's this?)

Crisp and clear. Sounds great!!!!

Disappointed

Written By Bobsharonc, Derby ks on Monday, November 19, 2012

The sound of the speakers were no better than the orginal equipment. Plus where they connect to the panel they are made of a hard brittle plastic that breaks shortly after installation.

Get everything you’ll need to enjoy your new Infinity Reference X REF-6402cfx

Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
You'll need speaker wire to connect your speakers to your amp.
Keep your speakers clean and dry. They compress to fit behind your speakers.
These speaker connectors are handy if you're running new speaker wire or if your speakers have oversized terminals.
The right tools will help keep your installation simple and clean.
If your stereo doesn't cut the deep bass from your full-range speakers, a set of bass blockers can help prevent distortion and give you cleaner bass too.
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