Dead Coils, Next Step.

[Noobtastic14]

So after sitting in my room for several months i tested the coils on my RD classic 10 and they're not working properly, so i want a recone (eventually) but i'm wondering now what my options are because this basket seems to be a very common 10" basket, thinking maybe i can buy a sweet motor and 2+2 recone. would i have to go through RD again for the recone? or i can i send it to Fi or somebody else?? also- what kind of motor would i be looking for??

thanx

-Drew

[audiofanaticz]

the looks of a basket is nothing to go by.

You need the dimensions of the voice coil, the depth of the gap in the motor and the gap.

These are things you most likely wont know unless you contact RD or have a digital caliper to test the gaps and sizes yourself.

Then after you get all that said and done, you will need to find a matching recone with thos specs, as well as a cone with the same pitch angle, and a matching spider diam, and length of the coil. If the newer coil is too long from the other company, but fits, it will bottom out and break.

I know fi does make recones for some other companies such as RE, but that is because they are almost idenical speakers with the gaps and what not.

So another words one subs cone/coil/spider with a 3 inch coil, will not fit into another magnet that also has a 3 inch coil.

But it is possibal for one sub with a completly different looking basket/frame to fit into another subs basket/frame, as long as the cone/coil/and spiders are correct.

[Noobtastic14]

gotcha

thanx!

-Drew

[audiofanaticz]

and what I mean by pitch, is the angel that the cone is. I guess its kind of hard to explain so Ill use one of my DDs as a example.

My stock cones on my dd are more V shaped. The bottom of the cone goes completly down to the spider.

PIC:

Now when I had it reconed into a 18. the basket/fram for the 18 was too tall for the composite cone which is not at a big pitch compaired to the stock kevlar blended cone. So dd used a "former" to extend to the cone to the spider.

PIC:

The former is covered in black glue so it wont come apart

[Noobtastic14]

thats interesting, i figured there was more to it that what meets the eye.

if only i had a beast woofer like that ;-)

-Drew

[audiofanaticz]

thats interesting, i figured there was more to it that what meets the eye.

if only i had a beast woofer like that ;-)

-Drew

yea, if only I had 4 to wall off instead of 2 :mad:

But I guess your best bet would be to contact other companies like FI, DC, and whoever else that makes recones for other subs, you may get lucky you may not. Good luck

[Noobtastic14]

yeah thanks.

local shop says the can recone it for 70$, good thing is that if they fcuk it up they're responsible as opposed to me fcuking it up on my own ;-)

-Drew

[dleccord]

and what I mean by pitch, is the angel that the cone is. I guess its kind of hard to explain so Ill use one of my DDs as a example.

My stock cones on my dd are more V shaped. The bottom of the cone goes completly down to the spider.

PIC:

Now when I had it reconed into a 18. the basket/fram for the 18 was too tall for the composite cone which is not at a big pitch compaired to the stock kevlar blended cone. So dd used a "former" to extend to the cone to the spider.

PIC:

The former is covered in black glue so it wont come apart

dont all subs have formers?

[audiofanaticz]

dont all subs have formers?

no

[audiofanaticz]

Im just using Digital Design subs as an example because thats what I have on hand and run.

Here are two fried cones/spiders/coils. These are just the basic kevlar blended paper cones with carbon fiber dustcaps.

The 15 inch on the left was toasted after about 45 seconds on a 480 volt electrical outlet (coils wired in parallel 1 ohm).

The 12 on the right just took many years of abuse and finally gave out. The pictures I posted above was my 12 inch speaker and same magnet in both pics just for a comparison on how small the magnet looks on the 18 inch basket

The former is used on speakers that offer different cones and when the cone is not at a big enough pitch the former is thrown in the mix to extend the cone to the spider for more support.

no former on these.

Tc sounds also uses formers on sub of their subs.

Pics curtisy of bass14

TC-1000 12 inch

But their formers are not caked in glue like mine are. But then again I told DD that I was wanting to push 4-5Krms per sub.