Diagnosis
Yes, but the grille is not designed to be removed by users. Cleaning must be done carefully in place to avoid damaging the fabric or the adhesive.
How to Fix It
Use a soft-bristled brush attachment on a vacuum cleaner on the lowest suction setting. Gently run the brush over the fabric to lift dust. For deeper cleaning, use a soft, dry, lint-free cloth and lightly wipe.
If That Didn't Work
For smudges or spots, slightly dampen a corner of the cloth with water only—no solvents or cleaners. Dab (don't rub) the spot, then immediately dry with another dry part of the cloth.
Heads Up
Never spray any liquid directly onto the grille. Do not use compressed air, as it can force dust deeper into the speaker drivers. The grille is not user-replaceable; damaging it requires a service repair.