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Optimus 10" Foam Speaker Repair Kit FSK-10A (PAIR)

Part Number:RSO-FSK-10A
Optimus 10" Foam Speaker Repair Kit FSK-10A (PAIR)
Optimus Woofer Repair Kit # FSK-10A
Optimus 10" Foam Speaker Repair Kit FSK-10A (PAIR)
Your Price:$24.95
List Price:$34.95
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Optimus 10" Speaker Foam Repair New-Edge-It ® Kit, Part # FSK-10A

Optimus Foam Edge Repair Kit
Outer diameter:
9-3/4" (248mm)
Roll outer diameter:
8-15/16" (227mm)
Cone diameter:
7-5/8" (194mm)
Inner diameter:
7" (178mm)
Foam roll width:
5/8" (16mm)
Variances up to 1/8" (3mm) from your speaker measurements are OK.
  • Optimus 10" angle attach woofer foam repair kit. New-Edge-It ® part # FSK-10A
  • Original Optimus woofer design
  • Some models require trimming of OD of new surround prior to install
  • Fits all 10" frame models with 7-5/8" cone
  • Fits Optimus and Radio Shack cabinet and driver models:

    Optimus and Radio Shack 2539, 2540, 2589, 40-1101, 40-1102, 40-1331B, 40-2029, 40-2042, 40-2047, 40-2043, 40-4033, 40-4037, Nova 18, Nova 7B, Nova B, Optimus 300, Optimus 30, Optimus 45, Optimus 75, Optimus 650, Optimus 660, Optimus T-120, T120, S0153, T-30, T30, T-110, T110, T-200, T200, T-300, T300, and many more!

    Please check the model and size of your speakers before ordering to be sure you receive the correct foam edge repair kit.

  • Speaker New-Edge-It ® foam repair kits include:
  • Two new formula polyether foam rubber surrounds. These last much longer than the original foam.
  • Special CLEAR speaker repair adhesive part # MI-3035. The same adhesive we use for our repairs.
  • We do NOT use generic glue or Elmers type white glue like others sell.
  • Easy to follow illustrated instructions. Installation average time is 30 minutes per speaker.
  • You do not need to remove the dust caps to install these kits perfectly - every time.
  • See online installation instructions here: Speaker Refoam Instructions
  • FREE technical support. FREE shipping to any USA address.
  • Join over 150,000 customers that have used our New-Edge-It ® speaker foam repair kits successfully!
3 Stars
Difficult with Realistic speakers
This was a difficult fit for the set of Realistic speakers that I had. This was the second time I've done this kind of repair, the first on a pair of Ohm speakers. And that went very well. But I had to do some trimming to make this fit and it was doubly difficult because the Realistic speaker was such that the foam went behind not in front. Despite doing what I thought was a botched job, the speakers did work. But if you have speakers where the foam needs to go behind the front bevel, consider sending them in to Simply Speakers to have them do it.
Did you find this helpful?  2 of 3 Found Helpful
Reviewed by:  from Washington. on 2/11/2015
5 Stars
recent retired broadcaster
The foam repair kit for our Optimus 45 speakers (bought in 1986) arrived quickly. Hardest part of the whole project was removing old adhesive and foam from the speaker. Thankfully, the Simply Speaker foam replacement video we saw on the company website did a thorough job of explaining the steps and gave us the confidence to tackle this. We trimmed between 1/8 and 1/4 inch of foam away from the interior circle of the new foam since it seemed to cover more of the speaker than the original foam did. The actual repair process was under 30 minutes per speaker not counting the one to two hours we waited for the adhesive to dry per the instructions. The speakers look and sound great after this very simple repair.
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by:  from Twin Cities. on 8/11/2014
5 Stars
Great Product
Great product! The Foam Speaker Repair Kits worked exactly liked advertised. The videos were especially helpful. If you have speakers to repair this is the way to go.
Did you find this helpful? 
Reviewed by:  from San Antonio, TX. on 3/15/2016
5 Stars
It was just as easy as your instructions and video. 75 yrs. old and no problem repairing my speaker, I use singular, cus after I did the first one,(30 yrs old), I started on the other one and it was still good, so I'm keeping the second repair ring til I need it. The repaired speaker sounds like new again. Thanks Simply Speakers, made me feel good to find a product, reasonably priced, that works. Dave
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Reviewed by:  from Bedford,trxaz. on 3/21/2016
5 Stars
I have bought several speaker foams from SS now and they have always been perfect. There was a misunderstanding on my last order of foams for Optimus t-200's (4 in all) Only received 2. I contacted SS and with no questions what so ever I had 2 more foams delivered with much speed! I recommend the product AND service 100% *****
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Reviewed by:  from Perryville. on 4/24/2016
5 Stars
perfect fit, fast shipping. Speakers sound like new!! Thank you.
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Reviewed by:  from Edgewater, Fl. on 5/29/2016
5 Stars
Ordered new foam repair kit for my 33year old Realistic Optimus 110 tower speakers and received them in only 4 days. Everything I needed to repair in kit and instructions made repair easy. Now my speakers sound like new.
Did you find this helpful? 
Reviewed by:  from East Liverpool Ohio. on 12/11/2016
5 Stars
The speaker foam kit was for my old (30 years old) Cannon TLS cabinet speakers. Back in the days of component sound system, big box speaker were the best. This kit and the video support made it simple and almost fool proof to remove the old foam and replace it with new. This fix should outlast me. I was extremely impressed with the new sound quality, my speaker have never sounded so good. Almost worth purchasing old speakers on line or at garage sale and rebuilding them. There is nothing like these big old speaker boxes with 8 to 12 inch wolfers.
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Reviewed by:  from East Coast USA. on 1/5/2017
5 Stars
I have a pair of Optimus 10 speakers that I bought in 1980. The foam had completely deteriorated for years. I kept meaning to get the speakers fixed or replaced, because the cabinets are high quality. I replaced the foam on the 10" passive radiators. Watched the video, and it was easy to repair.
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Reviewed by:  from colorado springs. on 2/8/2017
5 Stars
This repair kit restored the sound to my speakers about equivalent to when they were new years ago. I was amazed at the results! The work needed is a bit fussy and took me longer than anticipated, but the excellent video that Simply Speakers has on their website is a great help. Adjustments were needed as the foam was not exactly the same size as the original, but they were easy to make and the company representative told me that would be the case in advance of my purchase. I did have a slight problem with the first bit of glue out of the tube drying too quickly and it might be wise to discard a small amount near the cap, but there will be plenty left. Simply Speakers was very responsive and helpful when I first inquired as to whether this kit could actually repair my speakers. They assured me that it would and they were right!
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Reviewed by:  from Upstate New York. on 2/17/2017



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