Speaker grills on or off?

it's almost identical to a woman weather you want her clothes on or off.

It depends on the speaker. I leave them on if there's too much high frequency energy. My keepers all are used with grills off.

I actually think mine sound better with them off. There's more energy and clarity on the high end. Not a huge amount, but noticable. But, that said, it's very rare that I actually bother to remove them. They're magnetized, and very literally could not be easier to remove and/or replace. Let this be a testament to my lazyness.

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When listening, grilles off. When not playing, grilles on.

I don't know if there really is a difference, but just in case the grilles arent absolutely acoustically transparent, I keep them off when listening seriously.

On. No huge difference either way.