Beoplay S8 rattle from sub.

I went out a bought a used pair of S8's including the Connection hub. I didn't have the opportunity to take a listen at sellers house, so I transported them home safely to set them up. At some frequencies the sub makes a rattling noise, sounds like a mix of a loose screw and electrical noise, however it might just be the rubber surround which is worn? What do you think? And can I fix it? The warranty ran out in March...

Take a listen. https://www.youtube.com/watch?v=EMVROLMCAKA

That video doesn’t help at all. Maybe play some more music for a longer period of time so we can hear what is happening. I’ve owned a couple of S8s. Pretty fun speaker. Can you reproduce the noises without the satellites attached?

Did a child drop a penny in the top port?

Its the rattle heard more prominently in the end of the video. I will try to see if I can reproduce it with music playing instead. I haven't tried with the satellites attached, but I'm certain that the sound comes from the sub.

Does anything rattle if you shake the sub?

That noise is usually the internal bass tube which has broken off its mount internally. A common problem that happened in shipping usually. If you can open it up you should be able to glue/epoxy it back.

Hiort:

Does anything rattle if you shake the sub?

No, nothing rattles when shaking it.

BeoMegaMan:

That noise is usually the internal bass tube which has broken off its mount internally. A common problem that happened in shipping usually. If you can open it up you should be able to glue/epoxy it back.

How hard is it usually to glue back on?