Vibration at back of Swan M200 III's

[T3000]

Hello all, first post here so apologies if its in the wrong place.

I have a great pair of Swan M200 III's. There are no problems with the actual speaker cones themselves, but there seems to be a slight vibration around the region of the heat sink, at the back of the right speaker. This is apparent whether the speakers are quiet or loud, and only with certain frequencies.

For example, the beginning of this track Tango N' Vectif - YouTube

Loud bass or other higher frequencies, don't seem to trigger it. No cracking or distortion with the cones, or any other issues.

If anyone could advise how I could investigate and sort it out, that would be much appreciated. Thank you.

 

[T3000]

Anyone?

 

[planet10]

Hello all, first post here so apologies if its in the wrong place.

Weong forum, i have moved it.

Hopefully you will get more response.

dave
diyAudio moderation team

 

[planet10]

Swan M200 III

There are no problems with the actual speaker cones themselves, but there seems to be a slight vibration around the region of the heat sink, at the back of the right speaker. This is apparent whether the speakers are quiet or loud, and only with certain frequencies.

The symptoms suggest a transformer buzzing.

dave

 

[T3000]

Ok, thanks.

So what does that mean in layman's terms, and what can I do to remedy it?

 

[T3000]

Anyone?

 

[Lojzek]

Try removing the whole heatsink structure and see if it still vibrates. If not then it was driver induced through enclosure.