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Diaphragm for Foster Fostex Speaker D-420-2 (2 PACK)

Part Number:D-420-2
Diaphragm for Foster Fostex Speaker D-420-2 (2 PACK)
SS Audio Speaker Diaphragm D-420 (2 PACK)
Diaphragm for Foster Fostex Speaker D-420-2 (2 PACK)
Your Price:$32.00
List Price:$48.00
You Save:$16.00


In Stock

Quantity Pricing

  • 2+
  • $30.00
Foster & Fostex Speaker Diaphragm Part # D-420-2

  • Voice coil: 1" (25mm)
  • Diameter: 1.75" (45mm)
  • Length: 2.875" (72mm)
  • Impedance: 8 ohm, DCR: 7 ohm
  • Phenolic dome with copper voice coil on Nomex former.
  • Fits Foster & Fostex N30, 025H30, H025N30, H025N27, H025N28, FT300H drivers and many others
  • See FITS MODELS tab for all models. 
  • We also sell the long shaft Cerwin Vega version of this diaphragm. Part # D-420L
  • See our Cerwin Vega diaphragms page for details.

  • Our most popular replacement diaphragm!
5 Stars
Fostex Tweeter replacement
Replaced 2 tweeters in my Traynor k4 stereo keyboard amp with the 2 Fostex units. Real EZ and your shipping and pricing IS AWESOME ! Sounds much better now. Thanks !
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Reviewed by:  from Petersburg. on 6/15/2017
5 Stars
studio engineer, Singer, Artist
The Horn parts worked out good. I would recommend this company for speakers and parts for Speaker cabinets also very friendly people.
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Reviewed by:  from lexington,ky. on 11/20/2014
5 Stars
Active musician
Glad to find these at such a good price for my 1980's Acoustic speaker columns, 2x12+horn. I use with my band regularly and blow the diaphrams from time to time and need affordable replacements.
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Reviewed by:  from Ridgecrest CA. on 7/18/2014
5 Stars
Speaker Diaphragm
with only moderate skills I was able to replace the diaphragms following there tutorials online (make sure to clean the magnets well!). The horns are now as good as new thus saving substantially on replacement speakers.
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Reviewed by:  from MD. on 7/9/2014


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