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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View similar products to the Vifa TC9FD-18-08 3-1/2" Full Range Paper Cone Woofer
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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 These Sound GreatBuilt a set of desktop speakers with these, using them as full range drivers and they sound great. I bought some unfinished craft boxes from an online craft store for a couple bucks. And cut a 3" hole in the top with a power drill and a circle cutter attachment. I stained it with some left over stain from a previous project and mounted everything with some brass screws, nuts and washers from Home Depot. I glued the lid on with wood glue and left it clamped overnight. The enclosures are a bit smaller than the ideal volume, but I'm no craftsman, and I don't have the proper tools for making my own box.Combined them with a Lepai LP-2020A+ and they sound great and are LOUD. When testing at home I had the amp turned up a little over half way and it was uncomfortable to be within 5 feet of them.
Date published: 2014-12-09
Rated 5 out of 5 by from Very NICE!I built a 1cf sealed oak cabinet with medium stuffing and built a nice little contour filter for the rise up higher and run them for my PC and they sound very clear and detailed in the mid range, not much base but I knew this going in. Well worth the dukets! Imaging wasn't too bad eather for a small 9$ cone.
Date published: 2014-12-03
Rated 5 out of 5 by from Works great in a mini-karlsonator 0.4 scaleBought this product to use in a design created by Gregb and reincarnated by XRK741 over on DIYaudio, wonderful sound quality and has made me rethink my viewpoint of full-range drivers. Yes this can be used without a tweeter in a monitor setup (nearfield) to great success. Nothing but praise for this driver, excellent sound stage, limited bass but what it does put out is on point.
Date published: 2014-12-01
Rated 5 out of 5 by from Vifa TC9FD-18-08This small speaker packs leading technology and sounds as good as expected but of course don’t expect spectacular high frequency what you get is a fullranger with an excellent sound and balance for a few bucks and happy to have bought them (way better than my 5” Fostex). I have mounted them on a 4” diameter white drainage PVC coupling adding two lids to close the box making a volume close to 1 liter all tree parts are available in Home Depot or other hardware store for less than $3.00 Dollars. Just open a 3.060” diameter hole on one of the lids for the speaker mounting from the inside and a small hole on the other lid to exit the cable pair add pillow stuffing on the inside and glue both lids to the coupling this makes a sturdy and non-resonant cabinet. I left my boxes with the natural white color of the PVC so no need to paint or do other finishing work. As a finishing touch you may want to make a wooden support for the cylinder cabinets and they will look great!I’m using my pair as a close field PC speaker and if I would ever need lower bass I can connect a “sub”-woofer I have from a PC speaker set BTW the speakers are connected to a small chipamp (TDA7297Q) that I made for the PC which will drive this 8 Ohms speakers up to 5 Watts at less 1% THD. They may not be party speakers as fullrangers but highly recommended for near field application such as explained.Enjoy!
Date published: 2014-08-23
Rated 5 out of 5 by from I like these a lot!I've built two different systems with these. One uses eight per side, arranged vertically in groups of four with a compression horn tweeter in between. Crossed over before amplification, they cover from about 200 Hz to about 5000 Hz. With a subwoofer covering the lows, these blow away the typical "speaker-on-a-stick" 2.1 system . With just the slightest EQ, these provide near HiFi results, and they will get plenty loud enough for a large backyard or small gymnasium.The second speaker in which I've employed these is a stereo pair that I've been told can pass as a studio monitor. In fact, the more I listen to them the more I prefer them over my Mackie HR8s.Accurate, loud, not at all expensive -- can somebody tell me why I might want to spend more for something else in projects such as these?
Date published: 2014-08-16
Rated 4 out of 5 by from Surprisingly good sound!I am designing a sound bar and used two of these speakers as the main stereo pair. To test their function, I connected them to a 35W per ch amp and turned them on. I near fainted. They had amazing vocal presence that I usually only hear in my very expensive pro sound speakers. I wasn't expecting much, but I ended up getting a lot more than I paid for!
Date published: 2014-08-16

Product Q&A

Get your questions answered from other customers
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 Guys, I am thinking about using this as a car midrange mounted high up in the door, now a 3.5 FR pioneer 2way around 89dB Bass is 88 dB 6.5 Alpine. Will this be loud enough or do I need to say with car 4 ohm drivers? 12-9-14 Thanks!

Asked by: Shovel99
It is hard to say. These will be higher and more on axis so the difference in sensitivity might be beneficial here for a better blend. This will have similar sensitivity to other similar sized drivers.
Answered by: MattP
Date published: 2014-12-11

Baffle cutout is listed as 3.3 inches, which leaves gaps beyond the frame. Actual value approximately 3.05 in. Possibly supposed to be 3.03 and dropped the zero?

Asked by: lotsofjackies
Yes this is incorrect. The actual driver cutout is 3", I will have the site updated.
Answered by: MattP
Date published: 2014-11-24

I've just purchased a pair of the Vifa TC9FD'S  for th sole purpose of making a scaled down version of The Paul Voight - Tapered Quarter Wave Tube system. But I have to ask: do I need to install a filter of some type between th amp and th Vifa driver? 

Asked by: thcatt
I am not familiar with that design specifically. If the driver is being used full range, a contour filter will help with baffle step and create a smoother response, but ultimately it will be up to you and how you like the sound. Not having a filter will not hurt anything as long as the driver is not overpowered.
Answered by: MattP
Date published: 2014-11-11

So I put the specs into a calculator and it was giving me all these crazy readings. So what would be a good size and port dimensions for these in order to make them into good computer monitors.

Asked by: kyle1
The recommended vented box volume for this driver is 0.206 cubic feet with a 1-1/2" diameter, 1-5/8" long port for a tuning frequency of 89 Hz.
Answered by: MattP
Date published: 2014-09-27

I put 2 of these inside,no separation, 8Wx5Hx4D, sealed built wid a 12mm marine plywood. the sound is nt pleasant.  i am looking fr d smallst possible dimension. building a portable wireless unit. Also, fr a cylindrical type, wat ll b recomndd.like 2 test

Asked by: arjunm009
Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2014-09-04

Would a 3.5" hole saw be too big of a hole for this speaker?

Asked by: dholt44
Unfortunately yes, the frame itself measures 3.5" so it will likely not seal properly if a 3.5" hole saw is used.
Answered by: MattP
Date published: 2014-08-26

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