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Parts Express Diaphragm for Old Version 4"x10" Midrange Horn or Similar Heppner/Foster-type Drivers

Overview
Replacement diaphragm for old version of our 4"x10" midrange horn or for similar Heppner/Foster-type drivers.
Part # 
280-051
Weight: 0.04 lbs.  
IN STOCK
Your Price
$8.90
Part # 280-051
Qty:  EA
Available Payment Methods

Product Details

Parts Express Diaphragm for Old Version 4"x10" Midrange Horn or Similar Heppner/Foster-type Drivers

Replacement diaphragm for old version of our 4"x10" midrange horn or for similar Heppner/Foster-type drivers. Dimensions: • Voice coil diameter: 1" • Voice coil flange OD: ~1-3/4" • Overall length: 2.765" • Overall width of terminals: 0.925".



Product Specifications
  • TypeDriver Diaphragms
Parts Express Diaphragm for Old Version 4"x10" Midrange Horn or Similar Heppner/Foster-type Drivers
  • BrandParts Express
  • Part Number280-051
  • UPC844632010798
  • Product CategoryReplacement Diaphragms & Baskets
  • Unit of MeasureEA
  • Product Rating
    (19 Reviews)
  • Weight0.04 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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in the Replacement Diaphragms & Baskets product category.

Reviews

Parts Express Diaphragm for Old Version 4"x10" Midrange Horn or Similar Heppner/Foster-type Drivers
Diaphragm for Old Version 4"x10" Midrange Horn or Similar Heppner/Foster-type Drivers is rated 4.6316 out of 5 by 19.
Rated 5 out of 5 by from midrange horn like newBrought my 20 year old soundtech monitor back to life!!
Date published: 2014-11-07
Rated 5 out of 5 by from Mid range hornThis was perfect replacement with better clarity than the old horn no modification needed fit perfectly
Date published: 2014-10-14
Rated 5 out of 5 by from 410 DiaphragmFits perfectly in older Fostex/Foster horns and tweeters, and an affordable price.
Date published: 2014-10-08
Rated 5 out of 5 by from Drop in replacement for Warwick CCL 250 HornDrop in replacement for horn in the Warwick CCL 250 bass combo (mid nineties German made version). The speaker was marked "Fostex 25h274" but I could not find any info on this even in discontinued listings.Bought 3 of these based on pics and dimensions.Minimal filing to fit as others noted as the outer edge is about 0.5 mm too big, (could have forced it in but preferred not to).Sounds great, I added a switch on my amp to cut out the tweeter for mellow sounds as the tweeter is wired in parallel it was just a matter of breaking one wire and I installed a rocker switch into the recessed handle cavity.I can't compare sound to the original as it was a 2nd hand amp bought with a blown tweeter but there is a huge difference in brightness with the tweeter in circuit, and I would not say it sounds harsh. Manufacturing looks very close to the original.Bought 3 for spares and delivered to Australia in a matter of days.Thanks guys!Highly recommended.
Date published: 2014-10-07
Rated 5 out of 5 by from It worked !Took a look at these and without even measuring the old one I knew this is what I needed. I bought a pair of Kenwood MV-9D (big brother of the MV-7) and both mid horns were blown. These are Military version for sale only in Germany speakers. Very rare almost unobtainium Speakers with almost unobtanium parts. Parts Express came thru. These must be Foster Mids that Kenwood used. If you buy have a small jewelers file ready if using in the same speaker that I have anyway. They will need a bit of trimming to fit.
Date published: 2014-06-23
Rated 4 out of 5 by from Does the jobNeeded to replace the horn on one of my DJ speakers.Saw these and at $7.50 each gave them a try.They sound great notice no difference between it and theoriginal and they fit perfect.Ran them for hours at high volume, now going to addprotection and get spares.
Date published: 2013-04-26

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.
Parts Express Diaphragm for Old Version 4"x10" Midrange Horn or Similar Heppner/Foster-type Drivers

I have a pair of older Sonic d12 12" monitors and need to replace the horn diaphragms. These look the same. Do you know if they will work?

Asked by: Zakk Alan
There is no way to know whether these will work for that specific application or not. We have a 45 day hassle free return policy, so if you tried them and they didn't work you could send them back for a refund assuming they are undamaged and are in the original packaging.
Answered by: MattP
Date published: 2014-10-28

WHAT is the impedence of your FOSTER DIAPHAMS ,I need a 4 ohm for a mackie thump 15

Asked by: DJ SLIDE
This diaphragm is 8 ohm.
Answered by: MattP
Date published: 2014-09-11

What is the difference between this diaphragm and the Selenium RPDT150?

Asked by: RW1683
While these look similar, the tolerances and overall dimensions will be slightly different since they are designed for two different drivers.
Answered by: MattP
Date published: 2014-05-08

Is the "voice coil flange" measurement overall diameter or voice coil diameter?

I am looking to replace diaphragms with 1" voice coil diameter, and I have seen other replacements differentiate between "voice coil" and "diameter" measurements, e.g. 1" voice coil, 1 3/4" diameter. Just need a little clarification. Thanks!
Asked by: Joseph D.
The voice coil diameter on this diaphragm is 1", overall flange diameter is roughly 1-3/4".
Answered by: MattP
Date published: 2013-09-01

Is this a replacement for the Foster/Fostex type diaphragm?

Asked by: Dutch
I have heard of customers using this diaphragm with Foster/Fostex drivers, but I have not verified this to be true.
Answered by: mikevv
Date published: 2011-04-07

Customer Projects

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