Refoaming Beovox CX50 and CX100

34 replies
That makes sense. I guess I've just been lucky up until now, however I have used shims on larger diameter speakers in the past. I should always use shims to be safe.

Dillen wrote:
2. If white glue is what we in Denmark call woodworkers glue, it will be
nothing but trouble and I simply cannot see how anyone can recommend it.
It hardens completely, becomes brittle and will not bind to the metal basket.

I have refoamed a couple of CX 100's and used the white glue from Good HiFi. This glue looks, smels and feels like ordinary woodworkers glue, but maybe it is not. I'm not a chemist. I would like to find a suitable glue in Denmark to reduce the shipping costs.

Dillen wrote:
Speaker cement is very easy to work with, it settles reasonably well within
10 hours and completely within about 24 hours or so.
It has an incredibly strong bond to almost any material and remains just
slightly flexible and elastic

Can I buy the speaker cement that you mention in Denmark? If so under what name?

/riis

 

This drawing does not apply, since the surround is slightly above the frame in rest and isn't pulled very hard against the frame when connecting the battery. There is no chance that the position could change as much as 5 mm. If you had said 0.5 mm, then I could agree.
I have now done a pair of CX100 and a pair of CX50 with the battery method. All six drivers still work perfectly.

Agent00soul wrote:

This drawing does not apply, since the surround is slightly above the frame in rest and isn't pulled very hard against the frame when connecting the battery. There is no chance that the position could change as much as 5 mm. If you had said 0.5 mm, then I could agree.
I have now done a pair of CX100 and a pair of CX50 with the battery method. All six drivers still work perfectly.

Take a 0.5 Mm wire and then a 5 Mm and look at it, then maybe you will learn what the difference between 0.5 and 5 Mm is.

Just measured a 8" driver with an old 1.5 V cell, the cell i checked before testing, it showed 1.22 V, I got a pull of 3.4 Mm, and that with an old battery taken from an emergency flashlight, where it has been for about a year. What happens with a fresh battery with 1.6 V ?? you tell me.

The measurement was done on a 8" Beovox 3702 bass driver with new surround, without surround the pull will be a little longer.

 

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