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Infinity Reference X REF-5002ix

5-1/4" 2-way car speakers

Item #: 108R5002IX

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31 Reviews | Ask Questions


Price Break:-$40.00

Installation gear for most cars

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 REF-5002ix 5-1/4Designed 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-5002ix 5-1/4" speakers. Infinity's UniPivot design allows you to aim each textile, edge-driven tweeter toward your ears, so you enjoy excellent stereo imaging even if the speakers are mounted way down low in your doors. Each tweeter features a level control switch so you can boost the brightness to your taste.

Larger woofer for more bass

The REF-5002ix appeals to bassheads too, with tough polypropylene woofers and durable hi-roll rubber surrounds that deliver strong low-frequency 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 included along with Infinity logo badges that can be attached to your factory grilles.

Product Highlights:

  • 5-1/4" 2-way speakers (pair)
  • Plus One+ polypropylene woofer cone with hi-roll rubber surround
  • 1" UniPivot 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: 67-21,000 Hz
  • sensitivity: 92 dB
  • top-mount depth: 2-5/16"
  • warranty: 1 year
  • Our 60-day money-back guarantee

Why replace your car's original speakers?

The speakers that originally came in your car were made from inexpensive materials, designed to create acceptable sound at the lowest possible cost to the manufacturer. If you love music, you deserve better. Name-brand aftermarket speakers deliver fuller, richer sound with considerably more detail and nuance, and they're capable of playing louder and cleaner than factory speakers. Connect new speakers to your factory radio and you'll get the best possible sound from your dealer-equipped system. Pair them up with a new car stereo for a level of enjoyment that can rival a high-fidelity home audio experience.

Infinity Reference X REF-5002ix Reviews

Average Customer Review:

31 Reviews

Just installed

Written by: Jestracer from Kennewick WA on December 22, 2015

2014 Ford Fusion
Crutchfield Customer Review (What's this?)

I just finished the install in a 2014 Ford Fusion, 6.5 speakers up front, 5's in the back doors. So far I'm wildly disappointed, but this may be due to the foam inserts that I purchased with them. They can apparently rob the speaker of air needed to deliver at bass. Right now I have zero low frequency response... So I have to go back into the doors and remove them before I can give a final review.

Pros: Crutchfield's customer service was, as always, exceptional. Helped with a last minute wiring question on polarity and also had some helpful advice on the poor sound quality.

Cons: The foam inserts are only needed if you're adding a sub, and want the door speakers to drive your midrange and highs, or if you have waterproofing issues in the door. This review will be updated after I attempt the foam removal.

Infinity 5.25" apeakers

Written by: Why knot from Illinois on December 12, 2015

Crutchfield Customer Review (What's this?)

Honestly I was kind of surprised when I pulled the stock units out and they had the same size magnet as the Infinitys. I like that you can turn the tweeters to point the direction you need them.Sound quality was decent on these.Do not expect a lot of bass from these and honestly with this size component you should not anyway.I was pleasently surprised that Crutchfield sends wiring harness adapters and 6*9 adapters with these for no charge.I got a second set of these for free on a black Friday deal so how could I go wrong.I am thinking about putting these in a junk set of bookshelf speakers in the garage as a upgrade.


Cons: Just like anything else I think your paying a lot for the Infinity name.

Still in love after all these years...

Written by: Jason from Oregon on December 9, 2015

2014 Ford Fusion
Crutchfield Customer Review (What's this?)

I have had 5 sets of these over the years in different vehicles, and I keep going back to them for the sound, quality and the overall bang for buck. Never had a set go south on me and they have only gotten better as they moderinze with each generation. I have used them as stock speaker replacements each time, and they fill a wonderful sweet spot before making the big jump into new head untis, amps and subs. The midrange and highs are crisp and clear with almost no chance of distortion and with the aimable tweeter you can direct it where you need it as well. You get quality sound without massive money spent, and you will not be dissappointed.

Pros: -Build quality -Huge value -Great sound overall for the niche they are designed for

Cons: -Bass is a bit lacking, but that goes with the territory at this price point, size and lack of amps/subs and so on.

Good Quality Speakers

Written by: JamesH from Nashville, TN on November 10, 2015

Crutchfield Customer Review (What's this?)

Good quality speakers - nice overall sound. Tight mids and highs but a little thin in the low range. Well built and easy to install.

Pros: Nice mid-range and highs

Cons: Lacking a bass punch

Infinity Reference X REF-5002ix

Written by: TomE from Alabama on September 7, 2015

2003 Pontiac Grand Prix
Crutchfield Customer Review (What's this?)

These speakers are a great buy and truly sound great. they were very easy too install with Crutchfield's great instructions and wiring harness in my 2003 Pontiac grand prix.

Pros: easy installation...great sound and great price!!!

Cons: none

Good speakers

Written by: Steve from Gastonia, NC on May 10, 2015

2013 Honda Civic SI
Crutchfield Customer Review (What's this?)

These speakers worked pretty well to fill in the sound integer back of my 2013 Civic Si as the stock system left a lot to be desired. They sound pretty good with way better bass response and of course louder than the stock speakers. Some cutting and drilling was required to install in my car. But it wasn't too bad to install. I've had Infinity Reference 6x9's in the past that were pretty awesome; so I know it's a good brand and I trust these to be very durable and last long like the others I had.

Pros: Big magnets with good bass response. Rubber surround on the woofers. The tweeters can swivel for directional sound. Just twist them.

Cons: None really.


Written by: BC from PA on April 16, 2015

Crutchfield Customer Review (What's this?)

Good value

Pros: Crystal clear

Cons: Slightly lacking bass

Infinity Reference 51/4"

Written by: Fellmeth from Utah on January 12, 2015

1999 Jeep Cherokee
Crutchfield Customer Review (What's this?)

I have these Infinity's hooked up to a kicker 1000-5 amp. More power than they need, but I was surprised at how much sound I get out of them at low volume. They have a high sensitivity and run at 3 ohms which helps with this I am sure. I would imagine they would be a great choice with a stock stereo system as well for these reasons. They can also handle some real power when I decided to crank it up a bit. Crystal clear and mellow at high volumes.

Pros: High sensitivity and 3 ohm resistance for good sound with little input.

Cons: Nothing yet.

Infinity Speakers

Written by: EdT from Loganville, PA on August 12, 2014

Crutchfield Customer Review (What's this?)

These speakers are awesome! Along with the 6x9's in the rear and a new receiver in my Jeep, I couldn't ask for any cleaner or crisper sound! Thinking about installing them in my Toyota Pickup!


Cons: None

Infinity Reference X REF-5002ix

Written by: Arnold from Streamwood Il on August 12, 2014

1997 Jeep Grand Cherokee
Crutchfield Customer Review (What's this?)

Great speakers for the size. Stronger bass then I was expecting. Crutchfield included everything needed for a quick installation. My next audio purchase will be from Crutchfield.




Written by: dmac from central Louisiana on April 18, 2014

2000 BMW 3 Series
Crutchfield Customer Review (What's this?)

one of the best sounding all around speakers I have ever owned



Rocking mini van

Written by: Christopher from Jax, FL on March 11, 2014

Crutchfield Customer Review (What's this?)

I replaced the factory speakers in my Odyssey. These speakers are amazing. Already had a sub and they fit in with it perfectly.

Pros: Easy install. Easy listening.


nice speakers for the money

Written by: jeff from wheat ridge,co on February 6, 2014

Crutchfield Customer Review (What's this?)

very nice speaker for the money,not a lot of bass but very good sound

Pros: great highs and clarity

Cons: not so good bass

Infinity Reference X REF-5002ix

Written by: robert from arvada, co on January 28, 2014

2005 Subaru Impreza WRX STi
Crutchfield Customer Review (What's this?)

Nice and loud!!! I ended up getting a low power sub to add a little umph I am more into the sound of my music then the bass. speakers had very little bass though. great buy all around very clear at high levels.

Pros: LOUD

Cons: need a bit more bass

Infinity Reference X REF-5002ix

Written by: Steve from La on January 10, 2014

Crutchfield Customer Review (What's this?)

ez install, Great replacement 99 Regal (Monsoon system)

Pros: Great replacement 99 Regal (Monsoon system)

Cons: none


Written by: Nugget D. from Denver. CO on December 30, 2013

2005 Chevrolet Equinox
Crutchfield Customer Review (What's this?)

These speakers sound incredibly clear compared to my stock ones. They were super easy to install. The bass is also decent with these.

Pros: Great clarity, bass and ease of installation

Cons: nothing yet

Nice litlle speakers

Written by: Proonah from Pearland, Tx on December 26, 2013

2011 Honda Civic LX
Crutchfield Customer Review (What's this?)

If you get these do not purchase another set of 2 ways to match, get some good mid range single cones, and you can take better advantage of these,

Pros: Great highs!

Cons: None.

Infinity Reference X REF-5002ix

Written by: Anonymous from mt juliet tn on October 20, 2013

2001 Jeep Cherokee
Crutchfield Customer Review (What's this?)

bought these speakers on a recommendation from crutchfield and they are great sounding for such a little speaker



Great little speakers

Written by: Joe from Saddle Brook, NJ on August 10, 2013

2007 Honda Civic LX
Crutchfield Customer Review (What's this?)

For the size, these little speakers rock. Great highs/mids to be placed in a front door.

Pros: Superb sound for such small speakers

Cons: flimsy metal used for +/- ports.

Great Speakers for a good price

Written by: Hector from Dallas, TX on July 26, 2013

2003 Jeep Wrangler
Crutchfield Customer Review (What's this?)

Installed these speaker on a 2003 Jeep Wrangler as the bar speakers on the back. Installations was easy and with no problems, the speakers looks really good. Sounds is excellent for the size of the speakers. Wish I had some more bass, you can fix these if you get a sub woofer ( my next purchase). Will recommend these speakers anytime. Great highs and mid range Ok bass.

Pros: Great look Great mid range and highs Good price

Cons: OK bass but not bad

Excellent speakers!

Written by: rccr from Philadelphia, PA on July 3, 2013

1999 Volkswagen Golf
Crutchfield Customer Review (What's this?)

Excellent speakers at a Great price! I am going to order a second set to replace the front speakers in my Golf.



OK So Far

Written by: Aq from South Gate, Ca. on June 29, 2013

Crutchfield Customer Review (What's this?)

So far they are OK. Installed in my 2005 Jeep Wrangler LJ a few weeks ago and have performed well.

Pros: Easy to install. Full sound.

Cons: Feel cheap.

Nice Sound

Written by: DaneJ from Virginia Beach, VA on May 28, 2013

Crutchfield Customer Review (What's this?)

Marine application, though internally in a cabin, so not subject to the elements. Driving them using a NuForce Dia amp off of a TV. Wish there was a little more bass response, but generally happy. Will be adding a powered sub and all should be good.



much better

Written by: bobba from atlanta on April 24, 2013

Crutchfield Customer Review (What's this?)

much better than OEM,good price, get them



good upgrade over factory

Written by: mike from amarillo, tx on April 24, 2013

2006 Chevrolet Colorado
Crutchfield Customer Review (What's this?)

replaced factory originals with these. difference in sound quality is unbelievable.

Pros: sound great.



Written by: Jh from Morongo Valley, CA on April 24, 2013

Crutchfield Customer Review (What's this?)

Good speaker

Pros: Good speakers to compliment components in front

Cons: None

WoW_Infinity Reference X REF-5002ix

Written by: -Jay- from Norway via NJ on April 1, 2013

1998 Jeep Cherokee
Crutchfield Customer Review (What's this?)

Jeep Cherokee 98 rear roof speakers. To be this small, they give very clear and rich sound.and have plenty of punch. comes with all the hardware and tech ref you need.



Exceeded my expectations

Written by: François from Montreal, Canada on January 20, 2013

Simply... Wow! Installed in my BMW-3, I was crossing my fingers for them to be "at least ok". Although a sub would not be a total waste, the small 5-1/4 speakers have plenty of punch. But the most impressive is the sound softness and clarity. Not at all worried about potential listening fatigue. Unless you plan to throw $300-$400 on other higher-end models, go for these Infinity.

Pros: Great value, sound softness and clarity

Cons: None

B&W in your car

Written by: Peter M. from GaRRISON, ny on August 16, 2012

2009 Jeep Wrangler Unlimited
Crutchfield Customer Review (What's this?)

Really fine speakers, coming from an audiophile, well built with very clear audio response. These are both economical and compact for tricky installations. I added a sub-woofer and amp, now they exceed any expectations I had in mind for the units. I liked the load of accessries and mounting hardware and the easy to read instructions.

Pros: Cost, performance and compact size.

Cons: None

Infinity REF-5002ix speakers

Written by: TomV from Long Grove, IL on July 5, 2012

1986 Porsche 911
Crutchfield Customer Review (What's this?)

Installed new Infinity speakers to replace blown ones. Installation a breeze. Sound quality excellent for the size and cost.



Great Speakers for the Money

Written by: MJVegas from Las Vegas, NV on April 14, 2012

2004 Suzuki Verona
Crutchfield Customer Review (What's this?)

Coupled these speakers and the Infinity REF-3002 cfx speakers to an Alpine CDE-136BT receiver in my '85 Mercedes 300D. Great sound quality. Music and telephone conversations are great. No complaints.

Pros: Great Sound for the Money!


Hands-on research

What's in the box?

Download owner's manual

  • Two 2-way speakers
  • 2 Grilles
  • 2 Grille frames
  • Eight 1" Self-tapping screws
  • 8 Speed clips
  • 2 Adhesive backed 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)

Product Research


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 (UniPivot Design): Each speaker uses an edge-driven textile dome tweeter for smooth, accurate highs. The UniPivot design mounts the tweeter at an angle and pivots, so the tweeter can be pointed at the listeners, optimizing the stereo image for a more uniform response. The tweeter housing can be turned approximately 315 degrees.

Tweeter Level Control: A switch on the front of the tweeter allows you to boost the tweeter output to +3dB, useful if the speakers are mounted low in a door where high frequencies are easily absorbed.

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 5002ix speakers at 45 watts RMS (continuous average), they also recommend amplifiers with a power rating from 5 to 75 watts RMS.

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.

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