Problem with the Hughes & Kettner Bassforce XXL - Grill Rattle
 

I looked around for anybody who faced anything similar and I had no luck, which brought me here: I have this amp, and it sounds great besides my recent discovery that the metal grill on the front of the amp tends to shake a ton, either at higher volumes or in the neighborhood of 61 Hz.

Has anybody owned this amp, or have people resolved similar problems on other amps/cabs? What should I do?

Tighten the grill? ...or remove it altogether?

Not entirely sure how to remove it, I'm tempted to. There aren't any obvious screws to tighten that would take care of it.

Bump for help.