Hello stotty1111, mine had the same issue (and probably many more speakers with such a metal grill like BeoLab 7-1 etc.). I decided to just take it off, clean the plastic frame and re-attach the metal plate with a good quality narrow and thin double sided tape.
And, another question, I have a late 6-26 tv with metal speaker grill, that has come adrift, the foam sheet that sits between the grill and the plastic frame has seen better days , it is very fragile now. I have looked around here in Finistere for replacement pieces, cannot find anything suitable, anyone out there got any suggestions as to a source of said foam, it appears to be very pourous(?), about 2mm in thickness and would be in grey or black?
Sorry about my delayed response, other ‘stuff’ cropped up, I build and sail r/c model boats, and am known for solving probs with control systems. There are lots of times when I wish I wasn’t!
Ok, I will have a look later in the week and maybe decide to go with no foam. A friend thinks she may have a piece that might work, time will tell!
.
.
