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Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment. |
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18th Jul 2019, 6:50 pm | #1 |
Octode
Join Date: Feb 2010
Location: Leicester, UK.
Posts: 1,433
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'Blown' speaker repair help
Hi all,
I've recently had a problem with the speaker in my car and thought I would get it out and try to repair it. It is a mid 1980s VW speaker and surprisingly still the original date stamped from 1985. It has recently started distorting at any volume and I was expecting to see a damaged cone, but it actually looks fine. When I tried it I pressed onto the cone and it started working as it should whilst I applied pressure but soon distorted again once my fingers were off. There's no coil rubbing or anything bad, just wondering if there is anything I can do to fix it before I buy a replacement. If anything I would say that the edges of the cone feel a bit thinner and they obviously have some kind of finish applied, maybe to help tighten up the edges of the cone? I've attached a photo just to show the condition. |
19th Jul 2019, 6:08 am | #2 |
Hexode
Join Date: Mar 2014
Location: Peacehaven, East Sussex, UK.
Posts: 278
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Re: 'Blown' speaker repair help
I expect one of the braided wires has broken at one end.
with care they can be soldered to repair the break though access could be tricky |
19th Jul 2019, 9:51 am | #3 |
Rest in Peace
Join Date: Sep 2010
Location: Ripley, Derbyshire, UK.
Posts: 785
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Re: 'Blown' speaker repair help
It might be worth checking that the speech coil is not becoming detached from the cone. This can be done by careful inspection in a good light, and gently physically moving the cone at the same time.
If detachment is observed/suspected, judicious application of a minimal amount of an acrylic adhesive may save you the expense of a new speaker. Tony |