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Infinity Reference 9633cf

200W 6x9" 3-Way Reference Series Coaxial Speakers w/ Edge-Driven Textile Tweeters

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List price $219.95

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$84.95

with warranty

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Order within 21 hrs 58 mins to ship 12/23

Arrives by Monday, Dec. 29 to zip 07095

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Reference Quality Sound from Infinity

Never has getting high-end sound in your car been easier. The Infinity Reference 9633cf 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. The edge driven, textile dome tweeter also features a tweeter attenuation switch that will adjust from 0 to +3 dB. Get more from your audio system with the Infinity Reference 9633cf.

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.

  • 6" x 9" 3-way Reference Car Speakers
  • Power Handling:
    • Peak: 600 watts per pair / 300 watts each
    • RMS: 200 watts per pair / 100 watts each
  • Plus One+ injection-molded polypropylene (IMPP) woofer cone
  • Hi-roll rubber surround
  • 1" UniPivot textile edge-driven dome tweeter
  • 4 ohms impedance
  • True Four Ohm Technology - speaker's 2 ohm impedance combines with OEM speaker wire impedance for a 4 ohm load
  • Frequency response: 46-30,000 Hz
  • Sensitivity: 94 dB
  • Top-mount depth: 3-1/16"
  • Authorized Internet Dealer
  • 1 year Manufacturer's warranty

Priced Per Pair

Product History:

Infinity 9633cf thumbnail
(newest, current model)
Infinity 9623i thumbnail
(previous model, replaced by Infinity Reference 9633cf)
Infinity 9613I thumbnail
(previous model, replaced by Infinity Reference 9623i)

Speaker Specifications

Series
This is the manufacturer product line of speakers.
Reference (Infinity)
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Pair
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
6" x 9"
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
3-way
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Dome
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Textile
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Injection Molded Polypropylene (IMPP)
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Rubber
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
300 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
100 watts
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
94 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
46 - 30,000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
2 ohms
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
3-1/16"
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
6 x 9 
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
No

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
89%
4 Star
11%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.8
Value
4.9
Features
4.8
Design
4.9
Usability
4.8
Skryn

Spain

Overall
Durability
Value
Features
Design
Usability
Infinity 9633cf

May 8, 2014

Excelent service and very fast, good work.
Its a good option to buy a electronics components

1 of 1 found this helpful

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Jon

Discovery Bay, CA

Overall
Durability
Value
Features
Design
Usability
Great set of speakers for the price

March 30, 2014

These have proven to be a great set of durable rears for me, would definitely recommend.

1 of 1 found this helpful

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Wade

CAMDEN, SC

Overall
Durability
Value
Features
Design
Usability
great

October 10, 2014

Sound amazing. Amazing mids and highs. Great buy. Thank you so much sonic. Best audio site ever

0 of 0 found this helpful

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Randy

Cottontown, TN

Overall
Durability
Value
Features
Design
Usability
Still the same great sound!

August 4, 2014

I sold Infinity speaker 20 years ago and was surprised that they are as good if not better than before. Very strong bass with crisp clear mids and highs. I definitely would recommend this product. I will buy this brand again

0 of 0 found this helpful

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chris

Miramar, FL

Overall
Durability
Value
Features
Design
Usability
Awesome speaker

July 2, 2014

Great sound. Clear crisp highs, mids are too. but if you want the bass too... Gotta put it in a sealed box. Only drawback is that you gotta buy the grills separately. Got 4 of them in my jeep. and the neighbors behind the street can hear the tunes loud and clearly.

0 of 0 found this helpful

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Lilliana

las cruces, NM

Overall
Durability
Value
Features
Design
Usability
Great!

June 16, 2014

Installed on Toyota solara a little difficult but well worth it very satisfied!

0 of 0 found this helpful

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Austin

Dallas, TX

Overall
Durability
Value
Features
Design
Usability
Great speakers

April 22, 2014

Great high quality speakers for the price you won't be dissapointed. If you can afford to upgrade to the Kappa line of Infinity speakers.

0 of 0 found this helpful

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B&M

Hickory, NC

Overall
Durability
Value
Features
Design
Usability
Great Product

January 27, 2014

Great product, just as described. Fast shipping! Will do business with them again!

0 of 0 found this helpful

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Isaac

Marlton, NJ

Overall
Durability
Value
Features
Design
Usability
great quality. not amp'ed yet either.

January 7, 2014

no way I would pay full retail, but that's the joy of getting audio equipment online. at 1/3 the retail price tag, I'm really happy with the audio quality. I have the bass turned down since I'm running dual subs, but the mids come out nice. the tweeter gain switch on the speakers are a nice touch, though I keep it at no gain. running off the built in amp on my JVC kdx250bt for now, and sounds awesome. the important thing is that the sound is CRISP.

0 of 0 found this helpful

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John

Edmonds, WA

Overall
Durability
Value
Features
Design
Usability
Great, I'm sure.

February 22, 2013

I bought these speakers because Sonic Electronix's website said these would fit my mom's 1977 Datsun 280z...But they didn't. Not even close. The speakers remain sealed in the box and unused. I'm sure I missed my opportunity to return them as well. I purchased these specifically because I know that Infinity has always made excellent speakers.

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kj

omaha

Overall
Durability
Value
Features
Design
Usability
overall pretty darn good

February 14, 2013

I usually buy kappa infinitys but im not disappointed with the references. Mq quart four channel powering them and the sound good and get loud without distorting.

0 of 0 found this helpful

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Ryan

Canada

Overall
Durability
Value
Features
Design
Usability
Very good speakers, great factory replacements

August 22, 2012

Installed these in the rear deck of my Nissan Altima. Definitely wasn't the easiest place to install some 6x9s, but I managed. Very impressed with the sound, just don't hope for lots of low frequency bass. Mids and highs sound very good.

0 of 0 found this helpful

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Robert

Chesapeake, OH

Overall
Durability
Value
Features
Design
Usability
Good Price ,Good Preformance

June 4, 2012

I have these speakers hooked up to an amp pushing 180 rms watts @ 2 ohms, 90 rms each. I did not bridge the amp cuz it was only rated @ 4ohms bridged. They are great speakers. They blend good and help out with my 12" sub hooked to separate amp pushing 150 rms @ 4ohms. They hang with the power. For the money and sound they are very good speakers. Con is they don't come with the grilles. They are 15 bucks. They are so good im going to put some 6.5 in the doors.

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Tom

Deltona, Fl.

Overall
Durability
Value
Features
Design
Usability
great company/ product

May 6, 2012

I purchased a set of Infinity speakers from this company. I had a minor fitment problem and sought the help of their tech dept. They were very helpful and professional. The product is in my truck, far exceeds my expectations, and i am very happy with the end result.

0 of 0 found this helpful

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BJ

Okmulgee, OK

Overall
Durability
Value
Features
Design
Usability
Awesome sound!

May 2, 2012

Bought a pair of these to put in my 1986 SS Monte Carlo. I had to do some modification, but got them to fit. You can't go wrong with Infinity products when it comes to vocals!!! Crisp, clear vocals, Nuff said!

0 of 0 found this helpful

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Nasty

Fayetteville NC

Overall
Durability
Value
Features
Design
Usability
Amazing sound quality

March 1, 2012

Bought these and installed them in my '06 Ram unamped. They were amazing; good bass, great mids and clear highs. Honestly didn't think they could get any better.

After selling my Ram I put them in my wife's Town & Country amped by a Pioneer GM-D9500F. To say they are better is quite the understatement. I have the treble increased via the little button on the speaker to compensate for the addition bass and mids they put out now. I sampled several songs from Crystal Method, Adele, G-Unit and a few on the radio. Every single song sound better than I had ever heard it.

These speakers amazed me when I first purchased them and after sitting in a box for a year they have amazed me again. My only regret is not spring for the amp the first time around.

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Kelvin

Cedar Hill, TX

Overall
Durability
Value
Features
Design
Usability
Great speakers

December 2, 2011

if you are looking to upgrade your sound these are the speakers. They are clear and crisp. For the price you can't get a better set of speakers. Well worth the money. I would recommend these speakers.

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Alex

Illinois

Overall
Durability
Value
Features
Design
Usability
Worth The Cost

November 22, 2010

Currently running them on 220 rms each and they sound super crisp. I wouldn't recomend doing this but for the matter, they have been ran like this for about 6 months. Awesome sound and good power handling.

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figurehead

Tustin, CA

Overall
Durability
Value
Features
Design
Usability
Great set of speakers

November 10, 2010

These speakers sound very good. I got similar sets for my F350 and sets for my wife's 2007 Sienna minivan. I compared them to the components (individual) separates mid/tweeter and I think these sound better than the more expensive speakers. Regardless, they sound so much better than the oem speakers that came with the truck/car, it is silly to keep the original crap in the vehicle. Great price, quick shipping. a no brainer!

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Accessory Tools and Products

Accessories added

Streetwires 25 ft. of True Spec 12 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $44.95

12-10 AWG Butt Connectors

These yellow butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers.

Your Price $6.99

12-10 AWG Yellow T-Tap Adapters

Allows for fast and easy splicing of wires by easily tapping into the cable.

Your Price $4.49

Dynamat Xtreme Speaker Kit 10415

Enough sound dampening for 2 speakers!

Your Price $17.95

Stinger Roadkill Speaker Kit

Use this to eliminate rattle from your speakers!

Your Price $13.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $14.99

Xscorpion WDCR2 Window and Door Clip Remover

Removes and installs handle and window crank clips.

Your Price $6.99

3 in 1 Wire Quick Splice T-Tap and Butt Connector Crimper + Wire Cutter

Used for cutting copper and aluminum wires up to 8 gauge.

Your Price $21.99

NVX SDRLR1 Sound Dampening Rubber Roller

Install your Sound Dampening with ease! This heavy duty rubber roller is designed specifically to install your NVX products!

Your Price $7.99

Xscorpion USP-69 6" x 9" Speaker Baffles

Enhance the sound of your speakers with these easy to install speaker baffles.

Your Price $5.99

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• Peak Power: 210W
• RMS Power: 70W
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Browse 2 questions and 5 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
To upgrade the stereo a bit in my wife's car, because she decided she might be a bit jealous of my aftermarket system.
Timothy E on Aug 29, 2014
Quality and reliability, good value
Massi R on Aug 5, 2014
infinity is an industry standard for car speaker quality. lots of good feedback from professional installers and actual product users.
Eugene W on Aug 8, 2014
-So I have a 99 Jeep grand cherokee
I recently bought a rockford fostgate four channel class d amp that I thought would run at 75x4channel @4ohm, and 100x4channel @2ohm. I thought I would be okay because my four kicker mid cs series @4ohms can handle 100rms and the rms that this website provided was 75rms @4ohms for the amp.

Well I recieved the amp however the amp came with a birthsheet that said 487 total amps. which I know is more than what this website said.

I was wondering how this new power would affect the orginal 75rmsx4channel@4ohms,and 100rmsx4channel@2ohms. I wanted to ask if this amp will now overpower my mid speakers? and also wanted to ask what the new numbers for rms would be at the 4 and ohm rms now for the amp?
Thanks.
simpson29 on Nov 18, 2014
Best Answer: Hello Andrew,

I can't recall the format to which Rockford Fosgate sends their birthsheets; But if I recall correctly they essentially add up the TOTAL RMS output of the amp @ 2ohms. So, this means the amp is doing ~487wRMS/4channels = ~120w RMS @ 2ohms , which would translate to roughly ~85w RMS @ 4ohms.

To your concern, its not a very big concern as long as the setup is 1) installed correctly, 2) tuned right, and 3) is putting out a CLEAN signal. To stay conservative, you can very well slightly turn down your levels.
Reply · Report · Customer SStaff on Nov 19, 2014
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

9633cf

UPC

050667110550

Weight

9.98lbs

Internal SKU

9633cf

Internal Product ID

18906

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Infinity Reference 9633cf

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