Speaker Repair: How to Refoam a Speaker with a Polypropylene Cone

FOR IMMEDIATE RELEASE

 

(Newswire.net—August 9, 2013) Tampa. FL—Many clients of The Speaker Exchange send their speakers to their Tampa based operations for repair or just go online and order parts that they can buy and repair their speakers themselves.  Sometimes, it is cheaper and easier for them to order parts this way as opposed to shipping and handling an entire speaker.  Certainly, depending upon the user/ owner and their “handy” ability, will determine the best approach used.

 

Satin prides themselves on providing a series of “How To” videos that can be of great assistance to their clients.  Here are the steps towards refoaming a speaker with a polypropylene cone:

 

1. By using a straight edge blade, start by scraping the old foam off of the polypropylene cone
2. Scrape as much as possible without using any lacquer solvent.
3. Now with the blade, cut the foam off of the frame of the speaker (360 degrees).
4. Once the cone is clean and the foam is as clean as possible, the refoaming process is ready.
5. Take the dust cap off
6. The voice coils should be centered by use of shims.
7. Cut the shims in little strips, cut the dust cap off horizontally (taking care not to cut the leaves).
8. Now the shims should be inserted in between the voice coil and the center of the magnet or the pole piece.  This keeps the voice coil centered during the foaming process.
9. The cone should now be moved into a natural position that is level and the “spider” is flat.
10. Use contact glue and spread a thin bead around the outside of the cone.
11. Allow glue to get “tacky” , then insert the foam. Adjust and center it correctly while glue is still tacky and before dried.  Press into place.
12.  1 hour later, the glue can be applied to the frame for the outside edge of the foam surround.
13. Press the foam down into place and for excess glue, use masking tape to remove. 
14. Now, a few minutes to press around into place and let dry for a few hours.
15. Once dried, remove the shims, and using a masking tape, inserted in the voice coil and use to remove any dirt or debris that may have fallen into the gap.
16. Speaker can now be tested with a music source or a “function generator”
17. Ensure that the voice coil is moving smoothly before dust cap is put back on.
18. Put bead of glue on the dust cap and avoid dripping any glue into the speaker.
19. Use a piece of tape to place the cap back into place without touching the glue.
20. Put a small weight on top of the dust cap so can dry and process is complete.

 

For more information regarding repairing speakers and how to ship them to get fixed, contact    The Speaker Exchange   http://www.speakerex.com

8217 N Nebraska Ave     Tampa, FL 33604   (813) 237-4800