n00bie problem

[maciekish]

Hi!
Please take a look at the attached file. There is a problem with my 2 speakers, they are old, so the rubber around the membrane is gone. Can anything be done to that?? //maciek

 

[Bricolo]

i think you'll have to replace the mid/bass

 

[halojoy]

Repair?

Can't a repair be done.
If you cut some rubber from a bicycle rubber tube (hose)
and then glue it around the edge of the cone.

I am sure the woofer would be as new!

/halojoy - is very hopeful for old woofers

 

[AudioFreak]

replace the driver.

 

[maciekish]

thanks =) ill try the gluing on some rubber from the bicycle as halojoy said.. hope that works or ill swith over to hehe

 

[FrankDIY]

You can recone it. There is some company that does that: www.recone.com

They have a DIY kit.

 

[halojoy]

thanks Francois

You can recone it. There is some company that does that: www.recone.com
They have a DIY kit.

I treied the link - It even is a swedish company selling
these DIY kits. - Technovox In Norrtälje
http://www.recone.com/crsweden.htm

They also sell a Video -
"Foundation of Understanding"
video on Loudspeaker Reconing.
This is the most comprehensive education on Loudspeaker rebuilding
you will likely ever find
It costs $40 - that money will almost buy a new Woofer!

Here is the main points in the video,
which shows how to do it:

- A: Step by step reconing instruction
1: Identify the Loudspeaker for ordering parts
2: Proper cleaning of the speaker frame
3: Proper placement of new parts - Cone, Coil, Spider...
4: Centering the voice coil depth for maximum performance.
5: Assembling the parts dry.
6: Adhesive applications.
7: Testing and evaluating performance after reconing.

- B: Step by step refoaming instruction.
1: Identify the Loudspeaker needing refoamed or re-edged.
2: Proper cleaning of the speaker frame and cone for new foam.
3: Centering the voice coil for success.
4: Assembling the parts.
5: Adhesive application.
5: Testing and evaluating performance of the refoamed speaker

http://www.recone.com/fou1.htm

---------------------------------------------

Better than to use bicycle rubber tube
is of course if you could find sheets of rubber
in the size of A4 - then you can cut out a piece
in the form of a circle, that will fit the woofer better.

A very important thing here seems to "centre" the cone properly
so that it works properly.

/halo - the master of recone

 

[maciekish]

ok but i think i'll go for new woofers =) i found 3 candidates heheh tell me which ones are the best.. i like loud basss hehehe my amplifier is 2x100 and old woofers were 30w 8ohm..
Ones i want to bouy are:
MGR F-1808W --> 160W, 6ohm, 40-4khz.
Gamma BBK 200 --> 70W, 8ohm, 30-6khz.
Pro Audio SW830 --> 250W, 8ohm, 48-5khz.

Which should i go for?

 

[maciekish]

Woofer replacement

I want to replace the woofers in my old speakers, i found 3 candidates heheh tell me which ones are the best.. i like loud basss... my amplifier is 2x100 and old woofers were 30w 8ohm..
Ones i want to buy are:

MGR F-1808W --> 160W, 6ohm, 40-4khz. (http://www.ljudia.se/cgi-bin/se/online/ljudia-online.cgi?id=703128 &cart_id=)
or Gamma BBK 200 --> 70W, 8ohm, 30-6khz. (http://www.hifikit.se/show_prod.asp?id=145)
or Pro Audio SW830 --> 250W, 8ohm, 48-5khz. (http://www.hifikit.se/show_prod.asp?id=285)

All are 8"

Which should i go for?

 

[planet10]

Re: Woofer replacement

What is the volume of your existing box?

dave

 

[Jimmy154]

Why don't you just buy new surrounds? They're like $5 a pair on ebay, whatever size and material you want.

 

[AudioFreak]

buying new surrounds will most likely significantly change some of the driver parameters, generally not a good idea unless you can get exact replacements fitted by a professional that can ensure audible changes are minimal.

 

[MRehorst]

Since no one else asked I will: What are the big globs of white goo around the edges of the cone?

MR

 

[SvErD]

You can also get new surrounds here. http://www.decware.com/repairs.htm

 

[Circlotron]

Throwing good money after bad.

The question is - was the woofer a very good quality one in the first place? If it wasn't it still won't be any better than new when it is fixed probably. If that is the case, buy a new one. You will be much more satisfied.

Halojoy, is your house the place where old woofers go to die? I can just imagine your back yard 😉