Stuff to paint on speaker cones ??

[andrew01]

I remember reading on the web somewhere about some "stuff" available to paint on speaker cones.......like a clear lacquer ???......can someone help me with it's name & where it's available from
(especially in Oz-stralia )

Thanks
Andrew

[7V]

If you want the lacquer that actually improves the sound. Try C37 lacquer.

C37 Lacquer

Steve

[jmiyake]

Are we trying to lessen flex on soft paper cones, or are we trying to damp out some ringing on aluminum cones?

What are we trying to do? And exactly what affect will the laquer have?

James

[andrew01]

Trying to lessen flex on soft paper cones = YES.
Have some 300mm drivers I want to use in a sub project.
Someone mailed me & said the stuff I'm looking for might be called
"Damar" , but I'm a newbie so I don't know !
Any ideas appreciated.
Andrew

[7V]

Originally posted by jmiyake
Are we trying to lessen flex on soft paper cones, or are we trying to damp out some ringing on aluminum cones?

What are we trying to do? And exactly what affect will the laquer have?

James

Firstly James, those are very impressive looking line arrays. I would love to listen to them.

There are two issues in your posting.

Firstly, what are we trying to do?

Andrew has to answer this one. He didn't say why he wanted to lacquer his cones.

On the question of C37 ...

C37 is used on all types of cone materials, not just aluminium. I first listened to it applied to a paper-coned speaker, with the other cone of the pair left 'naked' so we could compare the sounds.

Recently, I have been experimenting with it on my aluminium cones with good results. I don't know the exact effect that the lacquer has but I believe that it changes the break-up pattern of the cone that it is used on. All I do is compare the sound of my drivers with and without the lacquer.

For more information, I suggest that you contact Dieter Ennemoser the developer of the stuff. He knows a lot more about what C37 does and will, I'm sure, be helpful in answering any enquiries that you put to him.

Steve

[7V]

Originally posted by andrew01
Trying to lessen flex on soft paper cones = YES.
Have some 300mm drivers I want to use in a sub project.
Someone mailed me & said the stuff I'm looking for might be called
"Damar" , but I'm a newbie so I don't know !
Any ideas appreciated.

Andrew, I think the stuff you want is Damar varnish which is available from art supply stores.

There wouldn't be any point in spending the extra money for C37 Lacquer if you're building a subwoofer.

Steve

[The Paulinator]

I would recommend painting a long spiral on the cone fron the inside to the outside. That way when you spin it really fast it looks like a windmill.

[Battlepriest]

C37? I didn't expect to read about it here. I'm really ashamed, that Ennemoser is a german.

[SY]

With the caveat that I haven't tried this particular elixer, I note the following:

The "technical" stuff on the C37 website is garbage.

The self-promotion is amazing. "The sensational possibilities of my discoveries..."

The price is astonishing. Sensational, even.

The lack of real performance parameters is unconscionable.

If you want to stiffen paper cones and make them moisture impermeable, there are reasonably-priced cone dopes from reputable companies. Or you can make one by dissolving Saran resin in a suitable solvent. One thing is for sure, there ain't no such thing as magic.

One more thing- despite the claim regarding "patented" cone shapes, a search of USPTO issued and pending patents turned up zero.

[7V]

Originally posted by Battlepriest
C37? I didn't expect to read about it here. I'm really ashamed, that Ennemoser is a german.

Isn't he Austrian?

Just one thing, Battlepriest, I take it that you've listened to a cone treated with C37 but preferred the cone un-treated, yes?

Steve