Recommendations: Adding woofer cone mass that's removable later on?

[Robert1954]

I've had good results adding mass to woofer cones using materials which are permanently affixed. However, I've never been able to find a material which can be removed at some point in the future if I choose to.

I'm not looking for something temporary for testing purposes, but rather something I could leave on for a year, etc, but could still be removed.

Any recommendations?

Thanks.

[AllenB]

Depending on the cone material, open-cell foam self-adhesive door sealing strips.

[Robert1954]

Thank you. That sounds promising.

One thing I forgot to mention is that I'm looking for something to use with paper cones.

[speaker dave]

Thats a tough one. I've always used modeling clay and it sticks pretty well but I haven't really wailed on it. It also tends to leave a bit of a grease mark when you remove it.

The problem with paper cones is that anything that really sticks is likely to peel the surface skin off the cone when removed. That being the case you might stick to the back side of the cone (well clear of the spider, etc.).

You might even try to glue a weight to the voice coil. Some glues are brittle and can be cracked off later.

Neo magnet discs on opposite sides of the cone?

It all depends on how much weight you need.

David S.

[jtwrace]

Hot glue gun.

I use it all the time for temp mounting of sensors to metal. You just twist and it will break the hot glue loose and you can peel it off.

[Altec Best]

Originally Posted by speaker dave

Neo magnet discs on opposite sides of the cone?

+1 I use magnets, they will stay there until you want to remove them and they won't discolor,mark,damage,the cones either, and they can be removed very easily !!

[Top Shelf]

+ 2 on the rare earth magnets, they work really well , especially when doing the delta mass test for WT2

[bbggg]

PlayDoh?

[cyclecamper]

I used epoxy; obviously not removable.

My latest project has poly cones, so I just might try self-adhesive sealing strips as AllenB suggests. Maybe he could post a picture of exactly what he had in mind?

[bknop]

I've used Replaceable weatherstrip rope caulk (kinda like sticky tac) with good success on poly cones before. Lowes sells it in a purple box for about $4. It can leave a mark on the cone though, paint thinner can remove the residual. It will also will damp out anything its on