Infinity Reference 6030cs

6.5" 2-Way Reference Series Component Car Audio Speaker System

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Product videos

• Peak Power: 270W
• RMS Power: 90W
• 1" Edge-Driven Textile Dome Tweeter
• Mounting Depth: 2-1/8"
• Injection Molded Polypropylene Cone
• 4 Ohms Impedance
• Sensitivity: 93dB

Learn more about the 6030cs

We apologize

This item has been discontinued

Product Highlights

• Peak Power: 270W
• RMS Power: 90W
• 1" Edge-Driven Textile Dome Tweeter
• Mounting Depth: 2-1/8"
• Injection Molded Polypropylene Cone
• 4 Ohms Impedance
• Sensitivity: 93dB



Authorized dealer

Will fit most 6x9" and 5x7"/6x8" locations,
with appropriate speaker adapter. Click "Related Items" Tab.

Reference Quality Sound from Infinity

Never has getting high-end sound in your car been easier. The Infinity Reference 6030cs car speakers are the perfect solution to aftermarket speakers. With the 2 ohm voice coil, these speakers are ideal for running directly off of a headunit or for use with a aftermarket amplifier. Infinity engineers have combined the Plus One+ cone with the high roll rubber surround to help retain the integrity of the sound. Get more from your audio system with the Infinity Reference 6030cs.

True Four Ohm Technology

The engineers are Infinity have developed a speaker that works for all applications. The True Four Ohm Technology used in these speakers make it perfect for running directly of a headunit or with an aftermarket headunit and amplifier. All of the speakers in the Infinity Reference line feature a 2 ohm voice coil. However, when you factor in the small OEM speaker wire of most vehicles and the heating in the voice coil during use, the impedance actually seen by the amplifier will increase. Infinity has adjusted the speaker to be safely connected to any headunit.

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

  • 6-1/2" 2-way Reference Series Component System
  • Power Handling:
    • Peak: 540 watts per set / 270 watts each side
    • RMS: 180 watts per set / 90 watts each side
  • Recommended Power Range: 10 - 150 watts RMS per channel
  • Nominal Impedance: 2 ohms
  • 1" Edge-driven textile dome tweeter
  • Plus One+ woofer cone design offers greater bass output and increased efficiency
  • Injection-molded polypropylene cone woofer
  • Hi-Roll rubber surround
  • Selectable tweeter output level: 0 / +3 dB
  • 2-way external crossover network (18 dB/octave, 3,500 Hz crossover point)
  • Starfish mounting brackets for easy tweeter installation included
  • True Four Ohm Technology - speaker's 2 ohm impedance combines with OEM speaker wire impedance for a 4 ohm load. Aftermarket speaker wire greater than 18 gauge will gain natural 2 ohm load.
  • Top-mount Depth (woofer): 2-1/16"
  • Cutout Dimensions (woofer: 5"
  • Top-mount Depth (tweeter): ~7/8"
  • Cutout Dimensions (tweeter): 1-13/16"
  • Frequency Response: 53 - 21,000 Hz
  • Sensitivity: 93dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • Also Found As: Reference X REF-6500cfx

Priced Per Complete Component System: 2 midwoofers, 2 tweeters and 2 crossover networks.

Specifications & Details

Speaker Specifications
Reference Series
Priced Per
Speaker Size
2-way Component System
Tweeter Design
Tweeter Size
Tweeter Composition
Woofer Composition
Injection Molded Polypropylene - IMPP
Woofer Surround
Peak Power Handling
270 watts
RMS Power Handling
90 watts
93 dB
Frequency Response
53 - 21,000 Hz
Impedance (Per Voice Coil)
2 ohms
Shallow Mount Installation
Top-Mount Depth (Mounting Depth)
Cutout Dimensions
Number of Speakers
2 Woofers + 2 Tweeters
General specifications
Speaker Grilles
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details


Model Number:




Internal SKU:


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Product and How-to Videos

  • Harman International: The Pursuit of Great Sound

Customer Ratings & Reviews

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Customer Reviews

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Great Speakers at a Great Price

These speaker sound great,very clear and even if you dont have an amp,but adding an amp only makes them sound that much better they love the power.For the price you cant go wrong.

By Jerrye on August 26, 2014


found this helpful.

Good quality

They work pretty good, got them powered by a kicker ZX350.4 and sound very clear and clean. Would definitly recommend.

By Rod God on May 4, 2014


found this helpful.

Great Speakers

These speakers are great because the cost is average and the quality is above average. It reproduces music very well and your amp will push them harder because of the impedance.

By townley on June 18, 2011


found this helpful.

Grab a set while you can

I'm a serial Infinity speaker installer. Have run Alpine, Kenwood, and a few other brands, but I keep coming back to Infinity for the clarity and overall balance of sound quality and price. I have these run off the head unit for the moment until I can add a four channel amp, and even with 22 watts a channel they are a massive step up from OEM speakers. Lots of different mount options included for the tweeters, but it's on the installer to figure out the best way. I lucked out and these fit directly in the space of my factory tweeters, secured with a dab of hot glue.

By Philip on August 28, 2014


found this helpful.

Very nice components

These speakers are in the front of my sedan ran off 150w x2 rms amp.
Matched with 5.25" Infinities in rear, and JBL-MS-12SD4 sub getting 1000w rms. Great budget SQ setup in my opinion.
They absolutely sing, and are the best overall mid-highs I've ever gotten from any of my 4 previous setups.
I don't even want to get out of my car when a good song is on loud!
I'm even hearing musical details I usually don't notice on my ipod or home stereo.
Very sharp crisp sound.
For the $$ I doubt you could find better, clean sounding speakers!
Bass is even pretty punchy and smooth, but you will probably want a sub to compliment these.

By bmh on June 24, 2012


found this helpful.


I'm overall very happy with the performance of these speakers.
I installed the 6030cs in my 02 GMC Sierra a couple months ago to replace the stock front speakers. I replaced the 6.5 door woofers, and I installed these tweeters in the mini panels directly behind the mirrors. My head unit (and amp) is a Clarion CZ501. When I was shopping around for this speaker upgrade, my top priority was to get accurate sound reproduction. I can honestly say that the clarity and soundstage from these speakers is beautiful and accurate. The highs are crisp but not harsh. The bass output is punchy, but I wouldn't call it strong. I estimate that the low frequency volume drops off around the 70hz mark, so to get a full sound you'll need a sub. I personally was not expecting to get gobs of low end from these 6.5" speakers, so I don't consider this characteristic a negative.
If you are looking for crisp, accurate sound, then these Infinity's are definitely a good place to start. They are solidly built and fairly easy to install. I subtracted a star from 'Ease of Use' only because it wasn't immediately obvious how to get the crossover unit popped open.

By Michael on October 21, 2011


found this helpful.

good not great

Very good clean sounding speakers. I originally planed to connect them to my factory head but the didn't sound that good. I added a Rockford amp and they sounded great. I thought the had good range and lots of bass for 6.5" speakers. Sometimes they are too bright and for that reason I rated them a little lower. I wish the crossovers had a -3dB setting.

By matt on June 7, 2014


found this helpful.


I have these speakers in the front with the infinity coaxial kappa 62.9i's in the back and theyre running off of the infinity 475a 4 channel amp. the highs get REALLY loud and the sound is powerful and clean and they compliment my 12 inch l7's nicely!

By Ghost on February 8, 2014


found this helpful.

Great For The Price

These are a great component speaker set for the price.If you set your amplifier up correctly they sound really good.

By Bubba on April 4, 2014


found this helpful.

Very good quality sound

the sound is crystal clear, and the price ROCKS....I fuly recommend these speakers.

By One Bass on July 17, 2014


found this helpful.


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