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Vifa OC25SC65-04 1" Textile Dome Tweeter

Brand:| Model: OC25SC65-04
Overview
The OC25SC65-04 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
  • 1" textile dome
  • Ferrofluid cooled voice coil
  • Self-shielding neodymium motor
Part # 
264-1018
Weight: 0.1 lbs.  
IN STOCK
List Price$23.99
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Part # 264-1018
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Product Details

Vifa OC25SC65-04 1" Textile Dome Tweeter

The OC25SC65-04 tweeter features a coated textile diaphragm, high-energy neodymium magnet, and does not include a faceplate. Perfect for custom mounting to waveguides or other unique design requirements. Ferrofluid in the magnetic gap improves driver cooling.



Product Specifications
  • Tweeter TypeSoft Dome
  • Cone / Dome Diameter1"
  • Impedance4 ohms
  • Power Handling (RMS)25 Watts
  • Frequency Response900 to 28,000 Hz
  • Sensitivity90 dB 1W/1m
Thiele-Small Parameters
  • Resonant Frequency (Fs)1,520 Hz
  • DC Resistance (Re)3.20 ohms
  • Mechanical Q (Qms)2.43
  • Electromagnetic Q (Qes)3.00
  • Total Q (Qts)1.30
Mounting Information
  • Overall Outside Diameter1.60"
  • Depth1"
Vifa OC25SC65-04 1" Textile Dome Tweeter
  • BrandVifa
  • ModelOC25SC65-04
  • Part Number264-1018
  • UPC844632083709
  • Product CategoryTweeters
  • Unit of MeasureEA
  • Product Rating
    (8 Reviews)
  • Weight0.1 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 OC25SC65-04 1" Textile Dome Tweeter
Vifa OC25SC65-04 1" Textile Dome Tweeter is rated 5.0 out of 5 by 8.
Rated 5 out of 5 by from B&W CC6 ReplacementBought to replace tweeter in B&W CC6 that is no longer available. Perfect fit in face plate. Had to change one terminal end. In my opinion, sounds great. Maybe a tadbrighter than original. Understand that it will "break-in'. Cheap save for an expensive speaker.
Date published: 2014-03-17
Rated 5 out of 5 by from another B&W replacementI too used these Vifa tweeters to replace tired tweeters in a pair of B&W P4 speakers. The ferrofluid in older B&W 1" tweeters has a tendency to dry out and they start sounding flat and lifeless. These Vifa's popped right into the hole, only had to change one of the wire terminals on each side. In ten minutes they were both changed. My P4's now sound great again. I'm now looking for a period B&W center channel speaker to complete my setup. I will replace the tweeter in that too so the whole front stage matches.
Date published: 2013-09-24
Rated 5 out of 5 by from The size and performance is hard to beatWas looking a 1" tweeter that would exactly fit in to the Polk speaker housing faceplate on the RTi 8's. Just glued them in place after cleaning up the channel and WOLA! Enjoyable from the get go and balanced in every way without any harshness. For an old school audiophile who's hard to please, that's saying something.
Date published: 2013-08-22
Rated 5 out of 5 by from Great replacement for Infinity RS3Sounds like the original and was easy to install. All I needed to do was flip over the mount to hold the tweeter on because there is a surrounding peice that prevents it from going all the way in. Check out the pictures it looks great.
Date published: 2013-08-12
Rated 5 out of 5 by from Another Satisfied B&W OwnerI had an old B&W CC6 S2 center channel shipped to me that only sort of made it. (Thanks, UPS.) Busted Tweeter, broken crossover mounts, loose internals... a mess. Rather than go through the hassle of claiming insurance and not being made whole, I decided to try parts express fort the first time based on the review below from another B&W owner. I needed a compatible tweeter to fit in the space that would blend well sonically, but not cost me $132 and only sort of fit. (No exact replacement manufactured, any longer.)The Tweeter:Its very good. When you consider it was $115.00 cheaper than what its replacing, it becomes outstanding. As the other B&W owner noted, this has a somewhat edgy tone out of the box. I wouldnt quite call it harsh, but Im looking forward to this break in peroiod being over so I can enjoy this little gem's fuller potential. I can attest that my ears are noting it becoming more balanced and rounded as it continues to play.Also, its worth noting- I found the tweeter's output seemed a little hotter than the B&W stock tweeter, as well. So, if you are considering this for a B&W replacement- I agree that its louder. I used a little EQ in my receiver and Voila! An Lpad is a more correct solution, but I like the forward mid-highs in my center. I think I'll keep it as is.Installation was a cinch. This guy it pretty thin. So, I shaved the plastic wings on the edges with a razor and pressed it into the cabinet's plastic housing for the tweeter. It aint going anywhere. Perfect. A little sauldering for the connections (optional) and you're all set.I can't say thank you enough to the previous B&W owner/reviewer, and I concur with everything he has said in the previous review concerning the tweeter's buld and sonic qualities. A final note, I happen to have a pair of P4's myself. I love them, but I had to replace the tweeters long ago with a product that's never been very good. I like the sound from the Vifa enough to order another two to get a matching set for my center. And of course, they are coming Parts Express. Very Satisfied first time customer.
Date published: 2013-01-21
Rated 5 out of 5 by from Great for B&W P4I used these to replace the tweeters in my B&W P4 speakers. The tweeters are the same for both the P4-P5 series. I have previously ordered replacement diaphgrams direct from the B&W distributor for about $20 apiece 10 years ago (I replaced the originals at least twice), but they don't appear to be stocked anymore and buying a replacement tweeter is $112 each. Go search for "b&w replacement parts" if you need help finding parts from them, they have full price lists. I did a lot of research on B&W tweeters, and it turns out the ferrofluid can be prone to drying out (at least for some of the older models) and there are procedures to remedy that but decided to replace them for a quick fix.I also saw some posts that stated they were going to try this tweeter as having similar specs to the originals. I used the original face plate assembly from B&W, removed the original tweeter diaphgram and motor. The Vifa motor is substantially shorter than the original B&W motor so keeping these in place with the spring clip in the back was a bit tricky. You might opt for hot glue or something else to seal these in place (I didn't use anything). Putting these tweeters in restored the missing highs in my P4's. I can't be totally sure, because the original tweeter diaphgrams were bad at the time of replacement, but the output level of the Vifa tweeters might be a tad higher than on the originals. I should measure the speakers to be sure, but will probably not get around to it anytime soon. Get an L-pad or some padding resistors, to fine tune if you find the highs "too high" in output. The highs were initially a bit edgy but smoothed out a lot after break in. The Vifa's highs are pretty clear and articulate. I would recommend these to anyone with the same speakers, its cheap to try out, and if you don't like them, shell out more for the originals from B&W. These domes are fabric so you they are much more robust than the original metal domes (kids poking fingers destroyed the originals). Plus the price was right. Lastly, ordering another B&W tweeter would also result in the ferrofluid drying out eventually again anyways, so using these was certainly a worthwhile endeavor. As always YMMV
Date published: 2012-12-22

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 OC25SC65-04 1" Textile Dome Tweeter

I have a set of B&W 602 s1 which have a dented tweeter which no longer functions. I contacted B&W and it sounds like each tweeter costs $100 to replace which is more than I would consider spending on these. would these be an almost suitable replacement?

Asked by: Voyaja
We always recommend replacing tweeters like this with the original. This tweeter may work as long as the impedance is the same, but it will sound different than the other speaker, so replacing both is your best bet. You will probably have to modify the enclosure in order to get this mounted properly since the original is proprietary.
Answered by: MattP
Date published: 2014-10-21

will theses replace the HF drivers in my Maudio BX5 D2s? 

Asked by: DrChainsaw
Unfortunately we do not have a cross reference available for this type of thing. 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: 2014-08-01

hi will this fit the CC6 S2 B&W centre speaker? Thanks A

Asked by: Aidan
Unfortunately this will not be a direct replacement for that tweeter. You would be farther ahead contacting B&W for a replacement since their drivers are all proprietary.
Answered by: MattP
Date published: 2014-07-11

Does this come in an 8 ohm version? OC25SC65-08 ?

I have disassembled mission 731 (not i) to replace burned out tweeters. The tweeter mounts from the rear with a twist lock ring to the baffle. This tweeter has the exact diameter that would snap in, however the 731 is an 8 ohm speaker. Thank you.
Asked by: JBF2
When used in a full range speaker system with crossover the tweeer impedance at4 or 8 ohms would make very little difference.ale sure to replace both boxes tweeters so the load ( even though minimal difference) would be the same.
Answered by: Nitnub
Date published: 2014-04-23

Help w/ Crossover, car audio

I bought a pair of these to use as door tweeters in a pickup. I built a crossover with the intention of using these as components (with 5" woofer, PE part #299-414), but am less than satisfied with the sound; it is very "one dimensional" and lacks the sparkle and brilliance of good components, especially missing detail in the high end. Almost like listening to an alarm clock radio (exaggeration, but you get the point).I chose 4100 as the crossover point for both. Tweeter is a 2nd order w/ 6.8uF cap & 0.22mH inductor. The 5" speakers are first order with a 0.13mH inductor. I wired the tweeter reverse polarity because of 2nd order, but the woofer straight. Looking for any suggestions on how to better my results and add much needed life to the sound.
Asked by: quakerj
Your crossover point is way too high. The tweeters you bought need 900hz. Your subs are handling the midrange and low highs. Not good design for a 2 way system
Answered by: Nitnub
Date published: 2014-05-15

Active crossover tweeter protection

I just want to protect this tweeter from any mistakes using a jbl ms-8 as the the actual crossover. Can you recommend a capacitor or other procedure to accomplish this?
Asked by:
The only proper way to protect a driver is to have it operate with a safe crossover frequency. In this case that will need to be at or higher than 4,000 Hz assuming a second order filter. If you decide to use only a cap it will need to be twice as high, so a 2.5 uF cap is recommended.
Answered by: MattP
Date published: 2013-09-03

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