Vifa TC9FD-18-08 3-1/2" Full Range Paper Cone Woofer

Brand:| Model: TC9FD-18-08
The TC/TG Series offers a high performance full range and mid-bass solution for TV products and other compact applications.
  • Polymer chassis
  • Patented NRSC paper cone
  • 3/4" voice coil
  • Copper pole piece cap controls impedance
  • Frequency response extends past 15 kHz
Part # 
Weight: 0.7 lbs.  
List Price$15.99
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Buy 4-up$10.80
Part # 264-1062
Qty:  EA
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Product Details

Vifa TC9FD-18-08 3-1/2" Full Range Paper Cone Woofer

The TC/TG Series offers a high performance full range and mid-bass solution for TV products and other compact applications. The use of leading-edge technologies like a polymer chassis, NRSC (Tymphany patent) paper cone, and a copper pole piece cap, have made this full range driver appear on many industry insider lists as the best sounding solution in this market.

Product Specifications
  • Nominal Diameter3-1/2"
  • Power Handling (RMS)30 Watts
  • Power Handling (max)60 Watts
  • Impedance8 ohms
  • Frequency Response100 to 20,000 Hz
  • Sensitivity83.5 dB 1W/1m
  • Voice Coil Diameter0.75"
Thiele-Small Parameters
  • Resonant Frequency (Fs)125 Hz
  • DC Resistance (Re)6.3 ohms
  • Voice Coil Inductance (Le)0.05 mH
  • Mechanical Q (Qms)2.7
  • Electromagnetic Q (Qes)1.33
  • Total Q (Qts)0.89
  • Compliance Equivalent Volume (Vas)0.04 ft.³
  • Mechanical Compliance of Suspension (Cms)0.67 mm/N
  • BL Product (BL)3.01 Tm
  • Diaphragm Mass Inc. Airload (Mms)2.43g
  • Maximum Linear Excursion (Xmax)2.55 mm
  • Surface Area of Cone (Sd)36.3 cm²
Materials of Construction
  • Cone MaterialPaper
  • Surround MaterialRubber
  • Basket / Frame MaterialPolymer
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside DiameterDiagonal: 3.62", Across flats: 3.3"
  • Baffle Cutout Diameter3"
  • Depth1.69"
  • Bolt Circle Diameter3.5"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.1 ft.³
  • Sealed F3122 Hz
  • Vented Volume0.2 ft.³
  • Vented F372 Hz
Vifa TC9FD-18-08 3-1/2" Full Range Paper Cone Woofer
  • BrandVifa
  • ModelTC9FD-18-08
  • Part Number264-1062
  • UPC844632083921
  • Product CategoryWoofers
  • Unit of MeasureEA
  • Product Rating
    (23 Reviews)
  • Weight0.7 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Vifa TC9FD-18-08 3-1/2" Full Range Paper Cone Woofer
Vifa TC9FD-18-08 3-1/2" Full Range Paper Cone Woofer is rated 4.7391 out of 5 by 23.
Rated 5 out of 5 by from Works nicely as a mini amateur radio speakerI built this into a somewhat undersized but inexpensive 4" X 4" X 4" plastic sealed electrical box (about 0.8 liter) with acoustic damping. Sounds very good with reasonable efficiency as a mini amateur radio speaker. Unibox spreadsheet says it has an F3 of 135 Hz, and a 2.1dB response peak, not unduly large at 231 hz. SPL predicted at 83.8 dB 1W/1M. Audio sounds full bodied and smooth.
Date published: 2014-03-17
Rated 3 out of 5 by from Good sounding speakerSpeaker sounds so much better than my old one that was blown. No more crackling sound. Although the frame and speaker dimensions were the same, screws holes were just a tad off and I had to re-drill them. So measure carefully.
Date published: 2014-02-16
Rated 5 out of 5 by from The best value for moneyWhy Granite is a very common reaction.A good choice if you think the price of others.Be installed in the home or car is recommended for small sizeVery good price considering the performance and design selection
Date published: 2014-02-10
Rated 5 out of 5 by from Great Midrange DriverUsing these as midrange driver in a low SPL three-way system. They sound excellent; very crisp, clean and no fatigue.
Date published: 2014-01-25
Rated 5 out of 5 by from great sound bar speakerUsed in an old pioneer sound bar not an exact fit. small mod. and sounds good as new.
Date published: 2014-01-23
Rated 5 out of 5 by from great sound bar speakerUsed in an old pioneer sound bar not an exact fit. small mod. and sounds good as new.
Date published: 2014-01-23
Rated 5 out of 5 by from reliable shipping and trackingPrompt shipping and packaged well to make the trip to Canada
Date published: 2013-10-26
Rated 4 out of 5 by from Great Sounding SpeakersBought these to replace some Pioneer home speakers in a theater system. Although they didn't fit exactly I was able to make them work and they sound great!
Date published: 2013-09-23
Rated 5 out of 5 by from Smooth and non-fatiguingI initially got them to replace the front woofers of a 99 Audi A4. The fit well with just a little mounting modification. A little short on bass compared to the stock speakers but then again these are just 3"ers. what struck me is how smooth these sound. i ran them straight off the radio with just a cap to keep them safe from too much bass. i later changed them to larger 4" then 5" drivers for more bass but their replacements just couldnt match them for smoothness.
Date published: 2013-09-12
Rated 5 out of 5 by from Replaced Pioneer speakersbought these speakers to replace some Pioneer speakers that were discontinued. they were easy to put back on my stereo and they sound great. at a fraction of the cost I would of payed for replacement Pioneer speakers.Thanks, Parts - Express.
Date published: 2013-09-06
Rated 5 out of 5 by from 9 speaker bar for home theatre systemSo, i read the reviews, and these sounded worth it. I had some Tang Bangs in my cart that were on close out that were a little cheaper, but before i could buy them, they were out of stock. I ended going with these. I love the sound of them. So what I did was made a spear bar/shelf that has a left, right, and center channel in it. The box for the speakers are 5 inches in height, 54inches in lenght and 14 inches deep. I also made each channel with a tranmission line design. I went this route after reading up on this design and thought that this could improve over all sound quality. Im not done with all the detail of the exterior shelf, but have the box made and speakers installed. Listened to lots of different types of music. Bass was good and hit well on, some drumb and bass music, highs were awesome on some Classical. Not running any crossevers, thought about it, but was waiting to see if there were going to be any issues with the lows, and didnt really hear any issues.
Date published: 2013-06-01
Rated 5 out of 5 by from Crazy Good little speakerWow, what great sound coming from such a little speaker. Can't push them very hard and I would suggest a cap to limit the very low frequencies. But these sound very good. Excellent range and very clear.
Date published: 2013-04-04
Rated 5 out of 5 by from No more ear fatigue!!I bought a pair of these 3.5" full ranges with the intention of making a couple enclosures and having them play full range at my office. Since my building is shared space I didn't want to mess with a subwoofer or a very powerful setup. I also bought Lepai T2020 mini amp to connect the audio-out of my computer. I just have to say that even without ANY box I set them side to side to a pair of Bose 601's I had at home and WOW I now am a believer in SPEAKER manufacturers, Peerless knows speakers, quality, detail in reproduction, instruments I was missing, etc.. It all came to life!! They are better heard ON-AXIS and even in the boxes I made (13 liter ported towers) you can definetly hear bass, not overpowering or mind numbing, but is definetly there... I mean for a pair of quiet office speakers, these things are amazing.. They will take you for a ride. Must have :)(sorry for the unfinished look in the picture, when I finish them I'll upload more)
Date published: 2012-08-31
Rated 4 out of 5 by from great multipurpose driverI ordered 10 of these to build a small footprint LCR bar for a clients new 51"plasma.. paired drivers in separate enclosures, with a driver on each end of the bar, wired each pair together for 4 ohms to each amp channel.. results.. for less than a hundred bucks, awesome sound in a small cabinet. wrapped it in velour and they are very happy, better frequency respone than expected, used no circuitry inside the cabinets whatsoever. a little active EQ and HPF from the reciever did the trick. much louder than expected. very happy, built two dipole surrounds with the other four drivers. can't wait to hear it.
Date published: 2012-03-18
Rated 5 out of 5 by from JUST WHAT I WAS LOOKING FORSo i've been searching and searching for a replacement speaker that wouldn't break my budget for the '88 celica and this speaker is perfect. Though i did have to do some mods to the speaker box, i didn't even mind because it wasn't anything difficult. These speakers are awesome for the price and i would definitely recommend them to anything who needs.
Date published: 2011-09-12
Rated 4 out of 5 by from Amazing ValueIn its price range, these are practically unbeatable, however there are some quirks that are relatively minor.1) I'm not a fan of the shape of the basket. It was rather annoying flush mounting it. A simple square or circle would have been much preferred. This shape is very common to Tymphany, unfortunately.2) The foam padding on the basket is inconsistently glued on. Some edges in fact had a visible amount of glue leaking out. It makes the driver look cheap, which I suppose it is.Still, I wouldn't have been able to guess from the sound this makes that it was a $10.60 full-range. It's such an amazing value that it's hard to recommend other drivers at even twice the price.
Date published: 2011-09-05
Rated 5 out of 5 by from Great replacement Item.I ordered two of these 3 1/2 inch speakers to replace two bad midrang Triads speakers, That I had since the 80's. The delco drivers were nice sattellite speaker with a Luxman amp and pre amp sound was smove until about six years ago. I haul my Thiel 2.2 up the stair to the 2nd floor to listen to my music. And now that I replace the old Triad delco drives with the new Vifa drivers, after about four days of brake in time. The Triad sound great with the replacement Vifa drives. These are now my main speakers. Great sounding drivers.
Date published: 2011-04-14

Product Q&A

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who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
Vifa TC9FD-18-08 3-1/2" Full Range Paper Cone Woofer

Hi What is the smallest enclosure that you'd recommend? Also, sealed or ported? Since Qts is .89, it should be ported, right? I have planned an enclosure of dimension 8Wx4Hx3D, sealed. Thanks.

Asked by: arjunm009
The dimensions you have in mind are perfect for a sealed design using this driver. If will have an F3 of about 130 Hz but it will extend into the 80's or so pretty easily. Ported will give you more low end output but is about 0.2 cubic feet.
Answered by: MattP
Date published: 2014-08-26

Hi i just bought these. The pins are diff in sizes. Can someone tell me their polarity.

Asked by: arjunm009
The wider terminal is positive, narrow is negative.
Answered by: MattP
Date published: 2014-08-23

Would these be a good option for a line array driver.  Would a line of 18 of these compare with a line of 18 FaitalPRO 3FE25.  I hear the FaitalPRO's are being used some professional compact array setups.  These would of course be accompanied by a sub. 

Asked by: strander
These will work well in a line array but they will have significantly less sensitivity than the FailtalPRO 3" drivers.
Answered by: MattP
Date published: 2014-07-26

this woofer has 4 plugs ?  2 positives, 2 negatives?

Asked by: Heri
This is just a normal single voice coil speaker with one positive and one negative.
Answered by: Chrisf
Date published: 2014-05-16

I plan on using two of these in a MTM design. In order to cross them over to the tweeter at 6K hz., would I use an inductor value based on the 8 ohm of each speaker, or the 4 ohm value of the two wired together?

Asked by: BobbyZ
You will want to use the impedance of both together for this type of application.
Answered by: MattP
Date published: 2014-09-27

i have a design on using 2 of these in a center channel with a tweeter (part #279-002) crossed at 12.5kHz and i would like a tuning frequency in the 80Hz - 100Hz range also my design is to have both the midwoofers (this 3-1/2") sharing the same airspace

Asked by: speakerfreak1
I would recommend .32 cubic feet for both with two 1.5" diameter, 3" long ports for a tuning frequency of 82 Hz.
Answered by: MattP
Date published: 2014-02-05

Good choice paired with a small sub for a boom box?

I'm looking to build a boom box and was thinking of using 2 of these per side along with a small 8" or so sub woofer powered by the Dayton mca2250e 2.1 plate amp. Thoughts? Good choice? Would this combination even work?
Asked by: Dapittboss
Yes that combination would work and work well.
Answered by: MattP
Date published: 2013-10-15

Is this speaker magnetically shielded?

Asked by: Robert100
Unfortunately this woofer is not shielded.
Answered by: MattP
Date published: 2014-02-05

Amplifier match....

Wondering if a pair of these would match well with a PAM8610 amplifier for a portable bluetooth speaker box?Thanks!
Asked by: gregrnel
Yes that would be a good match for that amplifier.
Answered by: MattP
Date published: 2013-09-05

What kind of spl would i get if i had two in a mtm design?

Asked by: Ned blah blah blah
Your sensitivity always goes up by 6 dB when you wire two woofers together in parallel. Two of these in an MTM will have an SPL of about 89.5 dB.
Answered by: MattP
Date published: 2013-01-14

Suitable for sealed enclosure?

I have been considering this speaker for a satellite cube project that will be used mainly for HT and music listening. I ran some calculations in a box modeling program based off the thiele and small parameters and the result was negative, which was kinda odd. I am trying to achieve the flattest frequency response possible because these will be used for music listening and I prefer a balanced sound. So my question is this, is this speaker better in an open baffle application and if not what would be the recommended sealed box volume? Also, how accurate is the advertised watts that this speaker can handle? I am planning on pairing two of them with a soft dome tweeter(rated @ 50 wpc rms, 100 wpc max) in each configuration, which will be powered with 120 wpc rms in HT( DolbyII) and 140 wpc in stereo mode. So according to the specs the combined rms watts for each configuration should be 130 and 220 max. I would prefer feedback from someone with direct knowledge of these questions and/or direct experience with the speakers.Thanks
Asked by: btuck
These woofers are better implemented in a vented enclosure however it depends on how low you really need to go with them. With an Fs at 125 Hz, they are not designed to play very low and will work best with a subwoofer. The power handling is accurate although this is only taking into consideration where they are crossed over on the low end. As long as they arent doing much below 120 Hz they will handle 30 watts just fine. Most systems like this will never send full RMS power to the satellites simply because the subwoofer is doing 95% of the work. If you plan on mating these with a sub, I would go ahead and throw them in a small sealed enclosure.
Answered by: MattP
Date published: 2013-08-25

I'm planning to put these in a small set of ported computer mini monitors. Any recommendations on the ideal cabinet specs and port length?

Asked by: Drewfus30
There are many response curves and alignments possible - the best thing to do is plug the specs into an online "speaker box calculator". You can then play with port diameter, length and boxes to see how deep and flat you an make your creation.
Answered by: MarkAJH
Date published: 2014-03-29

What size disconnect terminals should I use?

I will be buying 50 of these for a line array and obviously having the right sized terminals would be very helpful. Thanks for the help!
Asked by: wassp223
If the photo is an actual representation of the driver in question, then one terminal is 3/16 and the other is 3/32.I checked the data sheets, as you likely did. I found no better way than to measure the on screen width of the driver mounting flange across the width and reverse engineer the dimensions for the terminals. I would have to measure one physically to be more certain than that.
Answered by: bikermike
Date published: 2012-04-24

I found two different spec sheets.

I found two different spec sheets. Is this full range 5w or 50w?http://www.tymphany.com/files/TC9FD-18-08%20Rev1_0.pdfhttp://www.mx-spk.com/image/TC9FD-18-08
Asked by: moor
Looks like 50W, the spec sheet should be linked on the right hand side of the catalog page.
Answered by: AlonzoTG
Date published: 2012-04-21

Has anyone worked out a notch filter for the bump at about 8.5k ( per Zaph)? Thanks

Asked by: boone
I had a similar fostex speaker. The notch at that frequency turned out to be baffle compression, widening the hole around the driver or mounting the driver behind the baffle should fix it.
Answered by: AlonzoTG
Date published: 2012-01-13

does the high end roll off as weak?

The price really makes me want this one to work out for me, however the 15khz(+) cut off is hold me back. Honestly, would I be much more satisfied if i dish out the extra $17 for the Peerless 830986?
Asked by: Project addict
I guess i am getting deaf all cheap 3.5 in drivers need a good x'over and a tweeter for me. I use these with a 4 k xover in the poly type 3.5 [love them ]open accurate but realistically a small cone cannot move the air accurately at 15k with out beaming or below 150 hz with out distorting or loosing contact with the air. they came with 45 uf installed to block low bass. snipped it off made a 12db xover and 2 good tweeters L-paded and a dayton150 amp,mated the speakers below the 24 in pc monitor where the drivers sound field was best then mounted them, lip sync is awesome and the dual 18 in sub in the den with main's shake the icing off the cake
Answered by: digitalhaven 53
Date published: 2013-12-23

PE specs differ from Spec sheet

I've come to trust PE specs as I am a usual buyout costumer (and those generaly don't have spec sheets) but for this driver I'd like to know why the specs differ so much from the spec sheets. Also, wich ones should I use?
Asked by: Moose87
The Vifa spec sheet (http://www.parts-express.com/pdf/264-1062s.pdf) is correct. I've notified our web team, and the specs we list on this page will be corrected shortly.
Answered by: RussR
Date published: 2011-11-16

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