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Vifa OX20SC00-04 3/4" Fabric Dome Tweeter

Brand:| Model: OX20SC00-04
Overview
The OX20SC00-04 tweeter features a coated textile diaphragm, high-energy neodymium magnet, and does not include a faceplate.
Highlights
  • Faceplate-less design for custom mounting
  • Smooth, extended response and high efficiency
  • 3/4" textile dome
  • Self-shielding neodymium motor
  • Low Fs, low distortion
  • High efficiency
Part # 
264-1002
Weight: 0.05 lbs.  
IN STOCK
List Price$29.99
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Part # 264-1002
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Product Details

Vifa OX20SC00-04 3/4" Fabric Dome Tweeter

The OX20SC00-04 tweeter features a coated textile diaphragm, high-energy neodymium magnet, and does not include a faceplate. A back chamber lowers Fs for improved flexibility and performance when combined in a design with small woofers. Perfect for custom mounting to waveguides or other unique design requirements. Internal ventilation improves driver cooling.



Product Specifications
  • Tweeter TypeSoft Dome
  • Cone / Dome Diameter3/4"
  • Impedance4 ohms
  • Power Handling (RMS)20 Watts
  • Frequency Response1,060 to 38,000 Hz
  • Sensitivity91.1 dB 1W/1m
Thiele-Small Parameters
  • Resonant Frequency (Fs)1,060 Hz
  • DC Resistance (Re)3.20 ohms
  • Voice Coil Inductance (Le)4.10 mH
  • Mechanical Q (Qms)7.72
  • Electromagnetic Q (Qes)1.70
  • Total Q (Qts)1.39
Mounting Information
  • Overall Outside Diameter1.31"
  • Depth0.92"
Vifa OX20SC00-04 3/4" Fabric Dome Tweeter
  • BrandVifa
  • ModelOX20SC00-04
  • Part Number264-1002
  • UPC844632083617
  • Product CategoryTweeters
  • Unit of MeasureEA
  • Product Rating
    (7 Reviews)
  • Weight0.05 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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Reviews

Vifa OX20SC00-04 3/4" Fabric Dome Tweeter
Vifa OX20SC00-04 3/4" Fabric Dome Tweeter is rated 4.2857 out of 5 by 7.
Rated 4 out of 5 by from Great sound from a small unitThe tweeter was ordered to replace an Audax TM010A1. Unfortunately the performance in the upper frequency range is not near the Audax. However the unit seems to have good qualities in the upper midrange.
Date published: 2014-04-30
Rated 5 out of 5 by from Almost Perfect Infinity Primus Tweeter ReplacementThis Vifa tweeter is a nearly perfect replacement for the Infinity primus speaker series! Failed infinity tweeters can be yanked from the plastic grille housing, and then these Vifa's can be fit by carefully opening up the grille housing diameter slightly (I used a dremel) until the Vifa is a snug fit. Don't fully seat it, or it will contact the grille. I epoxied in place. Audio quality is excellent, and I cannot honestly tell a difference in my center channel between the OEM tweeter I fried and this Vifa. Power handling also seems excellent. Order spares!
Date published: 2013-11-06
Rated 3 out of 5 by from Vifa OX20SC00-04 tweeterTweeter is compact and for the money performs ok. It has a harsh "tinny" sound compared to their higher end tweeters. For the money and if you need a small compact tweeter, it's probably the better one out their. Unfortunately I was not quite satisfied with the harshness and limited range of this tweeter.
Date published: 2013-03-20
Rated 4 out of 5 by from Not bad for KEF 104/2 tweeter replacementStill adjusting to replacements for KEF T33 SP1191 drivers in KEF 104/2. The ferro-fluid in these KEF tweeters hardens over the years, leading to a gradual loss of treble.With no faceplate, these are good candidates for this application I was able to tap these into the tweeter cut outs us!g a piece of 1x2 and some gentle hammer taps. I pushed the original tweeter holding block to one side and used some wood window frame shims to lock in place without vibration.The 91.1 dB sensitivity, 4 ohm impedance and 1K resonance peak are similar to the original T33 unit.So far, so good!
Date published: 2013-02-25
Rated 5 out of 5 by from niceThis fit snug with very minor engineering in the factory tweeter pods in my 1999 e46 sedan. Powered by a pioneer gm-6400. I have it crossed at 2khz/12 to a dayton rs150. EQ is done with Alpines pxe-h650. I must say it sounds so much better than what the stock tweeter could offer.
Date published: 2011-04-28
Rated 5 out of 5 by from Excellent, tiny tweeterI needed top quality tweeters to fit in a very tight location for a high end car audio installation. The Vifa OX was the ONLY tweeter that would fit (~35mm OD!)and had great specs. I have them crossed at 2.2 KHz with a pair of 4" Tang Band speakers in the doors. The sound is fabulous! Smooth, detailed, just great. Now you can put high end sound where you never thought you could.Tips from this project:- Polymer clay (Premo, Fimo, etc.) works great for making on-axis tweeter mounting pods. See pix.- Use a pair of L-Pads on the tweeters to get the initial levels right.
Date published: 2011-03-07

Product Q&A

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Vifa OX20SC00-04 3/4" Fabric Dome Tweeter

Break in? How long?

Anyone have experience with break-in on this speaker? out of the box, they are sounding pretty harsh/screechy (particular example is violins at beginning of Ray Charles/Willie Nelson version of "it was a wonderful year"). Will this subside and if so, how many hours of operation are necessary?
Asked by: TedL
All speakers have a different break in period. Tweeters generally have a longer break in simply because they do not move nearly as much as a woofer. I would let it play at a moderate level for 10-20 hours with normal music. A crossover point that is too low or a sensitivity is too high, this will cause distortions and harshness as well.
Answered by: MattP
Date published: 2013-02-27

Mounting?

How exactly would you mount these? Do they come with any sort of mounting hardware? I'm planning on these going in the A-Pillars of my vehicle.
Asked by: Cody.P
If I'm not mistaken, Vifa has a couple of different mounting rings or "face plates" for these things. Check with PE for availability. I've actually mounted similar drivers by making mounting plates out of wood, shaping the opening into a shallow horn, and sizing the board to fit a 4" x 6" dashboard cutout. I mounted a 3" mid driver alongside the tweeter. It made a neat custom install and was not visible behind the factory grilles.
Answered by: Bryan
Date published: 2012-07-20

Can I use these with Dayton RS180-4

I have an auto application with very limited space. I need a tweeter with maximum 1.3" overall diameter.I want to pair these with Dayton RS180-4 with a Dayton 2nd order 2000kHz 2way crossover.Will this setup be ok or should I look elsewhere?
Asked by: Confucius37
This setup probably won't work very well with the tweeter. This is a small tweeter with a low power handling and high Fs, so by crossing it over that low and with a slope of only 12dB/octave, the tweeter will be getting too much low frequency content, and the tweeter's resonance will probably be quite audible. I'd say that if you're going to cross over at 2kHz then you'll want a 4th-order slope on the tweeter, although that still might not be enough. 4th-order 3kHz or 2nd-order 4kHz would probably be better.Then again, if you're going to use the RS180 then crossing over at anything above 2kHz simply won't work due to the RS180's metal cone breakups around 4kHz.I'd say use this tweeter (since it is quite a good quality tweeter, and it's small enough for your application), but cross it over above 3kHz, and use a different woofer instead. Most paper-cone and poly-cone woofers can be crossed over at 3kHz or even higher. I understand why you'd want to use the RS180 (since it is quite an awesome woofer, esp at its price!), but it's really only meant for 3-way systems, or 2-ways with a low crossover point (and hence a large tweeter).Good luck with your project!
Answered by: eboyer
Date published: 2011-10-26

Does this tweeter need a crossover of some sort? It is a car application.The tweeter taken out had a 3.3 mfd cap.

Asked by: ModEmotions
Yes, always. You might get away with a first order (capacitor) at around 3khz. You would need a higher-order if you cross it any lower.
Answered by: AlonzoTG
Date published: 2011-08-30

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