Hello everybody
I just bought old laney PL100 Bass combo and realized that when i play at a bit louder (still not even a half of it's power) the grill on the combo start vibrating...it's very annoying and i want to fix this...
Please help me find a solution...i already try to tighten the screws more but this didn't fix the problem.. it's still vibrating..

I hope you understand me, because my english is not so good...
thanks guys!