Repair Instruction-Video
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| 1:If there is a gasket on top of the old foam, Carefully remove it with the utility knife and set it aside to reuse later. Carefully insert a sharp utility knife between the gasket and the old surround. Slowly work your way around the gasket. Prying it off until the original glue seam is broken. Scrape away any remaining foam from back of gasket. | 2:Remove any and all foam residue from the speaker frame an cone. You don’t necessarily have to remove all of the glue residue, but you must remove all of the foam residue. |
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| 3:Apply Foam Remover to foam and glue residue around edge of frame and cone. Warning! Do not apply foam remover to the cone. it will hurt the some cone. Allow to soak for 3-4 min. | 4:Scrape all remaining foam or glue from frame with edge of utility knife or wood chisel, making sure not to damage the cone. Use your fingers to rub off the remaining foam particles from the cone's edge. Remove as much foam as you can, but leaving a thin layer is acceptable. |
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| 5: Before gluing, check for proper cone and frame fit. If you are precise, draw a line before gluing. | 6:Small variances of less than 1/8” are OK. If the new edge fits cone, but the outer lip is too large for the frame, trim the outer diameter of the foam edge as needed. |
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| 7:Apply 1/8" bead of adhesive to flat lip on cone edge or to underside lip of foam if cone is angle attach style. Smooth adhesive uniformly and immediately apply to cone. Some wrinkling of the new foam is normal and will subside as the adhesive cures. | 8:Use your finger tip to smooth the adhesive uniformly and then install the foam to the cone while the adhesive is still wet and tacky. Install the new foam edge onto the cone. You can move the foam and make adjustments as needed at this time. Be sure to center the foam on the cone. In most cases it is easier to install the new foam to the TOP of the cone even if the original foam was installed behind the cone. Allow to dry for 20 min. |
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| 9:Insert the tip of your glue tube under the outer lip of the foam edge to apply a bead of adhesive around the frame. Press lightly on top of the foam to distribute the adhesive. | 10:Use your finger tip to smooth the adhesive uniformly and then install the foam to the frame while the adhesive is still wet and tacky. Install the new foam edge onto the frame. You can move the foam and make adjustments as needed at this time. |
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| 11:While the adhesive is still wet, exercise the cone by pressing down evenly around the dust cap to center the cone and voice coil. Notice how the cone can easily be moved in one direction or the other to easily find the "sweet spot" where there is no scraping or friction of the voice coil. Be sure to center the foam on the cone and frame. |
12:Apply adhesive to the top of the foam and install the gasket removed earlier (if applicable). Place the speaker gasket side down and allow to dry for 20 min. |
How much glue / remover do you need a couple of speakers?
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Repair Videos
Watch our customer reference videos and get an insight into the successful repairs.
Video created by Ralfs Refugium
Video created by Brain X
Video created by Simmie's Schrauber-Channel
Video created by Brain X
Video created by Electronics Old and New by M Caldeira
FAQ
I have never repaired speakers before, can I repair them myself?
We have prepared an installation guide and guiding videos. To correctly repair your speaker, it is sent with repair guide which includes videos and images. We are at your service as an online shop since 2010 and thousands of people have successfully repaired their own speakers.
The new surround is slightly larger than the speaker basket, can I cut the edges of it?
You can cut the edges of the surround with a scissors and overlap the foam to make it smaller as needed to fit speaker basket. The Surround can deviate from the original size of your edge by up to 3 mm, this is not a problem during repair.
Foam surround vs Rubber surround? How is the quality of surrounds?
The surround is produced from polyether, very light due to the polyether's nature and micro bubbles give it a more flexible form so it could move in the magnet easily. Rubber surround is produced from EPDM rubber technology. It is heavier comparison to polyether and the motion of the rubber surround in the magnet is limited. Hence the sound quailty differs. Most of the speaker producing company uses foam surround.
One of my surround is worn up, should I change the other one too?
No, if you mind the look of it being different to the other, you can change the other one too.
Do you have a speaker repair service?
Yes, we have. Learn more about repair service here.
The surrounds are too small/big! I would like to return it!
If you have ordered surround speakers that don't fit your speakers and would like to order the correct size, email us your order/customer number or call us.
What is voice coil centering how can i center voice coil when repairing them?
The important point of the repair process is the voice coil SHOULD NOT touch the between of the Magnet. You can test it with your hands. You need to put your fingers on the cone and simulate an up and down motion as if your speaker gives out sound. At this point, you should make sure there is no scratching sound heard and the motion has no fraction. When attaching the speaker basket, make sure that the voice coil has enough space to vibrate and no fraction, otherwise you won't get a good sound!
Which brand have their surrounds?
Our surround brand is Kewlon, it is made in Germany.
Here you can find repair instructions for speaker surrounds, download as PDF files in German and English.
would you like more information? please visit our instructions page.