FREE SHIPPING! On all Edge Kits & Diaphragms. All the Time.
Shopping Cart -
0 item(s)
Search by
Hello Guest, Login
FREE USA shipping on any order over $75! Sale runs November 24 to January 31. Happy Holidays!

Radio Shack Optimus 12" Foam Speaker Repair Kit FSK-12A-1 (SINGLE)

Part Number:RSO-FSK-12A-1
Radio Shack Optimus 12" Foam Speaker Repair Kit FSK-12A-1 (SINGLE)
12" Subwoofer Repair Kit # FSK-12A-1
Radio Shack Optimus 12" Foam Speaker Repair Kit FSK-12A-1 (SINGLE)
Your Price:$19.00
List Price:$25.00
You Save:$6.00


In Stock

Choose Options

Add Gasket?
Foam Guard Sealer?
Radio Shack Optimus 12" Foam Speaker Repair Kit FSK-12A-1

12" Foam Edge Repair Kit
Outer diameter:
11-3/4" (298mm)
Roll outer diameter:
10-5/8" (270mm)
Cone diameter:
9-1/4" (235mm)
Inner diameter:
8-5/8" (219mm)
Foam roll width:
3/4" (19mm)
Variances up to 1/8" (3mm) from your speaker measurements are OK.
  • 12" angle attach woofer foam repair kit. New-Edge-It ® part # FSK-12A-1
  • Original Radio Shack design
  • Fits most 12" frame speakers with 9-1/4" cone
  • Fit Radio Shack and Optimus subwoofer models:

    Radio Shack, Optimus: Pro SW-12, Pro SW12, Pro SW 12, Pro SW-14, Pro SW14, Pro SW 14, 3044, 40-4050, 40-4051A, 40-4072, 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:
  • One 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!
5 Stars
passive sub rebirth
Video very helpful. This is a 20 year old Radio Shack passive 12" subwoofer whose foam surround was shot. I was about to throw it away. On line, I happened to see your video about repair and said why not and ordered. The repair was easy and the sub speaker suddenly looked brand new again. I have a Pyle 2x40 amp and hooked it up to the sub which is now "active." Sounds as good as my other active sub costing $$$more!
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by:  from livingston, nj. on 9/15/2015
5 Stars
Item worked perfectly and repair installation was easy with the enclosed instructions. A very economical option to repair speaker on an older system.
Did you find this helpful? 
Reviewed by:  from Minnesota. on 6/13/2016
5 Stars
The foam speaker repair kit was perfect. I was able to repair the 12" speaker in my sub to its original condition. The video explained exactly what to do and the process was simple. Great product. Repair don't replace.
Did you find this helpful? 
Reviewed by:  from New Jersey. on 5/11/2016
5 Stars
Speaker Repair
I purchased this foam surround to repair a vintage passive subwoofer. I cleaned the old stuff off the woofer and metal.that's where I spent most of my time. I installed the new foam surround. Let it dry, reinstalled the w[fee to the cabinet. Sounds very nice with two satellite speakers.
Did you find this helpful? 
Reviewed by:  from Cambridge OH. on 4/6/2016
5 Stars
Great Value
I have a very old 12" Optimus passive sub. The foam was badly deteriorated. At first, I was a little hesitant to try this repair myself. But it was not difficult at all. I read the written instructions carefully and also watched the YouTube video. Just get a well-lit work area and take it slow. The result is fantastic. Speaker is good as new and sounds awesome. Great value and great support. Very fast shipping. My only complaint is the price of the single foam is almost as much as the pair. A price around $14.95 would make more sense I think.
Did you find this helpful? 
Reviewed by:  from North Texas. on 2/6/2014



Related Items

Ivory Speaker Grill Cloth 60
Average Rating(9)
In Stock
Jet Black Speaker Grill Cloth 60
Average Rating(117)
In Stock
Speaker Dust Cap, 4.5
Average Rating(6)
In Stock
Top Sellers
New Releases