removing rscd cone

Post by **ttocs** » Sat Oct 16, 2010 9:15 am

I am ready to swap out a torn surround for a new one in an rsdc104. The new piece comes with the surround attached to the innerportion, but no cone. The cone on the one I have is in good shape and looks a little loose but I fear pulling too hard on one side will bend it and mess it up.

Post by **ttocs** » Tue Oct 19, 2010 11:25 pm

anyone on this? I got the cone from morgan and sent him a pm but have not got a responce.

badmotorscooter · Post by **badmotorscooter** » Sat Oct 23, 2010 8:10 am

Carefully apply heat and pry up in small sections of the surround where it attaches to the cone. Heat will let the adhesive ease up a bit. Once you get it off, you will need to apply some new adhesive on the new surround. Clean the basket portion off VERY good so the new surround adheres to the surface and does not separate in the future.

Post by **ttocs** » Sat Oct 23, 2010 11:50 am

have you done this before or is this just a best guess? I have not tried heat for fear that the cone itself could be effected by the heat.

Post by **Bfowler** » Sat Oct 23, 2010 12:09 pm

you might pm vw337. he helped build them

badmotorscooter · Post by **badmotorscooter** » Sat Oct 23, 2010 12:24 pm

Yes I have done repairs to woofers before. I work for a speaker company so it isn't uncommon to make prototype woofers while waiting for a vendor. It isn't easy but with patience and a sharp xacto knife you should be able to do it.
edit: I forgot these are poly cones. You don't have to use heat, but it definitely helps. Just be careful and only use enough heat so that the surround just feels warm. What your trying to achieve is just slightly warming the surround to soften it. The sharp xacto knife is really doing most of the work. I would use alcohol and a swab to remove any excess glue on the cone after you have detached it.

Post by **ttocs** » Sat Oct 23, 2010 1:26 pm

thanks I will give it a try. I can get just the tip of my fingernails under it but it seems pretty solid. I have the replacement cone/surround, but not the center.

Post by **stipud** » Sat Oct 23, 2010 7:43 pm

http://phoenixphorum.com/how-to-replace ... vt867.html

badmotorscooter · Post by **badmotorscooter** » Sun Oct 24, 2010 5:10 am

ttocs wrote:thanks I will give it a try. I can get just the tip of my fingernails under it but it seems pretty solid. I have the replacement cone/surround, but not the center.

If you got a whole cone assembly why would you go through all the trouble just for the dust cap? That is way easier to just knife out around the dust cap then clean it up and then put it on the new one. Is this a new voice coil too or just cone/surround minus dust cap?

Post by **ttocs** » Sun Oct 24, 2010 7:08 am

it is the surround and it is attached to the speaker iteself an the lower mounting of the dust cap. I do not have a new dust cap, just surround/speaker assembly. I will need to remove the dust cap to remount it on the new assembly.

Post by **ttocs** » Sun Oct 24, 2010 7:47 am

the kit that morgan sent me ahd the surround attached to the cone, so I thought I would go that way. After using some heat I was able to gently pry off the dust cap but then realized that heat was not going to remove the epoxy that glues the spider to the cone underneath. With some heat I was able to remove both surrounds, one from teh speaker and one from the new assembly

So what kind of adhesive do you recomend to put it back together. Anyone want a deal on a rsdc104.

wash with gasoline · Post by **wash with gasoline** » Sun Oct 24, 2010 11:00 am

you mite give this a read as well

http://forum.speakerplans.com/a-recone- ... 29715.html

badmotorscooter · Post by **badmotorscooter** » Sun Oct 24, 2010 6:00 pm

The real crappy part is almost no type of glue off the shelf will stick to a poly cone. Your best bet is a semi rigid glue like goop, or something similar. Try to rough up the cone edge before applying the glue. A tip to keep the voice coil centered is to use a piece of paper and roll it up tight. Let it slip into the gap all the way down to the bottom plate, it will unwind a bit to the natural size of the gap. This should help cone alignment too when you drop it down.

Post by **ttocs** » Mon Oct 25, 2010 4:16 am

paper, good idea thanks.