Refoaming a Speaker?

How to Refoam a Speaker, Refoaming a speaker

Refoaming a Speaker is the replacement of the outer foam/rubber/cloth suspension ring that connects the cone to the speaker frame assembly. The speaker repair process starts out by cleaning the old material off. Removing the dust cover and inspect the magnetic gap for debris and clean.

How to Refoam Speakers(Speaker Refoam Instructions)

Original dust cover is reused unless damaged. We shim every speaker so that they are centered properly and we allow the glue to sit for 24 hours before pulling the shims to make sure the glues are cured.

Shims go into the inner part of the voice coil around the pole piece. This ensures that the space on all sides of the voice coil is even so it does not rub and distort. We do a final test/inspection on the speaker.

What is the Best Speaker Surround Material?

We get asked a lot about replacing the foam with a rubber material so they last longer. Sometimes it can benefit but most of the time the speakers will work best with using the same type of material that was originally used. Rubber surrounds go bad, they can either dry up and get stiff, or they crack and break apart over time.

Some do last longer than others just depend on the material and external factors like humidity or sun exposure. There are a lot of options available and upon request and examination, our top-rated speaker refoaming service can determine whether it would be better to use rubber or foam. Cost is usually an additional $5-10 more per speaker for a rubber if available.

How Long Do Surrounds Last?

Usually 10-25 years depending on the material.

Another service we offer is crossover upgrade and repair. Capacitors can go bad after time especially electrolytic. After 20 years the dielectric material degrades and or oxidizes. We can replace it with the same type of capacitors. Or we can upgrade to something better like poly capacitors.

We can determine after an inspection which would be the best to use. Will better capacitors sound better? Most of the time yes unless the speaker is of low quality then we would not recommend doing the caps. Capacitors do have a break period of 100 hours of use to reach their full potential.


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