Buzzing bass because of rubber

Hey there,

I am new here but would like some advice on fixing the subwoofer of my speaker. I got a pair of B&W DM320N and with one of them the bass buzzes.
I found out that if I pull it up every so slightly it gets fixed but when I remove my finger it starts buzzing again. I have no knowledge of speaker repair, so I am asking for some advice.
 
Rubbing voice coil?

There's some chance you can get it to go back into alignment by removing the mounting screws,
rotating the woofer 180 degrees, and reinstalling the screws. Then use it for a while and
see if it gradually improves with use. It may take a while.

Or instead, just turning the entire speaker upside down would do the same thing.
 
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Rubbing voice coil?

There's some chance you can get it to go back into alignment by removing the mounting screws,
rotating the woofer 180 degrees, and reinstalling the screws. Then use it for a while and
see if it gradually improves.

Or instead just turning the entire speaker upside down would do the same thing.
In the video the speaker is already turned upside down, so I am guessing that rotating the woofer wouldn't work
 
I had a similar problem with my 703's. The problem actually showed up with test tones more than music and to cut a long story short it was a metal filling at the entrance where the coil goes into the magnet. I could see it with a torch and the cone was obviously not free to move. The magnetic flux is so powerful at that point that you can't hope to flick it off but what worked after a moments thought was a plastic straw and some sticky tape looped on the end. It stuck to the tape and was removed.
 
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Reactions: GM and JMFahey
I had a similar problem with my 703's. The problem actually showed up with test tones more than music and to cut a long story short it was a metal filling at the entrance where the coil goes into the magnet. I could see it with a torch and the cone was obviously not free to move. The magnetic flux is so powerful at that point that you can't hope to flick it off but what worked after a moments thought was a plastic straw and some sticky tape looped on the end. It stuck to the tape and was removed.
This sounds like a good fix but I am not quite sure what you mean
 
It was here, the point where the coil enters the pole piece of the magnet. The filling was resting on the magnet and jamming into the coil as it tried to move inwards.

Screenshot 2022-10-20 182650.jpg