Subwoofer repair

[jazko]

Hi everyone, I came across a B&W ASW 4000 subwoofer, driver only. It seems like it's blown (voice coil is fried) . I was wondering if you can tell me where can I send it for repair ? I'm in Salford, Manchester.

Cheers!

 

[chris661]

If it's an OEM from another company, you might be able to get a recone kit, and DIY.

Apart from that, some shops selling PA gear can repair drivers, but I don't know if they'll be able to repair this particular one.

Another option would be to contact B&W, see what they say.

 

[jazko]

Hi, Chris.

I did contact B&W first. Still no answer, though.
Can you give me some coordinates of those PA shops. It's worth the shot.

Thank you

 

[chris661]

Speaker Repairs

Anyone know of speaker repair place in/around Manchester?

Speaker Repairs Walsall

Not sure if any of those will be any good, but that's what Google turned out... The guys in the second link seem very helpful, so it might be worth contacting them...

 

[LAJ]

Sometimes you can repair them. Check the tinsel leads going to the terminal strip. If thats OK, carefully remove the dust cover with an exacto knife. The knife blade should be gently inserted parallel with the cone. Do this on a hot day or in a hot room (helps to soften up the glue). Check the connections there where the tinsel leads are soldered to the voice coil. You'll have to scrape some of the glue away to check continuity. If resoldering fixes it, reglue the dust cover to the cone.
While you have the dust cover open, check for a burnt varnish smell. If yes, then the coil is fried. Good luck

 

[jazko]

Chris, thank you a lot !

LAJ - I know that the coil is fried, I checked it with a multimeter and resistance is 0 ohms.

I know that contacting B&W is the best solution, but it turns out they dont even pay attention to emails.

 

[chris661]

Not a problem. If you have a good experience with the people I've linked to, let me know and I'll bookmark it for recommendation to others...

Chris

 

[jazko]

Well, I've contacted the guys from the second link, but they could not help me. Seems like this is a really rare and hard to repair speaker. I will wait until tomorrow, hopefully some of those PA repair sites can help.