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This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022

 

BL5 tweeter fix

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Dante
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Dante Posted: Tue, May 15 2018 2:45 AM

Hi there!

I´d like to share my recent experience with BL5 tweeters.

After listening to Dire Straits - Money for Nothing - at a crazy level I found out a production problem on my unit. The wire that connects the tweeter terminal to its core was cut during assembly. Luckly for me I could repair it with no sound degradation, as the fix was done outside the coil.

Here are some pictures I've taken during the process...

 

 

Dante
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Dante replied on Tue, May 15 2018 2:51 AM

I think the wire was partialy cut, that's why the speaker worked fine for a long time before the failure. And that's why the production quality control didn't marked the unit as faulty...

CB
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CB replied on Tue, May 15 2018 6:57 AM

Thanks for sharing this !

It's interesting to see these details.

Was it a hard work to disassemble up to this level?

Dante
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Dante replied on Tue, May 15 2018 12:41 PM

Hi CB,

Actually it was easier than I anticipated. The only time I had to take a hard decision to continue or not was the initial one.

When you remove the tweeter from the speaker (2 minutes to do that) and have it in your hands you think "What do I do now? There are no further screws to remove or plastic clips...". As the unit was dead and there is no B&O dealer anywhere in a 1000 km radius where I live, I decided to take a knife and cut the adesive that holds the plastic cover (last picture) that covers the aluminium plate.

After that three screws showed up and voilá, another 15 minutes to finish the job!

One thing that I learned during the procedure: B&O spent as much time in the inside of the BL5 as the outside to design them.

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