Grills ON or Grills OFF?

It really depends on the speakers. When I had Dyn original C1's the soundstage really collapsed with the grills on. When I upgraded to the C1 Signature the soundstage doesn't collapse but if you 'squint' you can hear the highs get ever so slightly roll off. Me personally I like the grills off more for looks. OTOH when my grandkids come over the grills are ON.

My current speakers are designed w/o grills. Prior to that my Dynaudios and Vienna Acoustics sounded best with the grills 'OFF'. Grills should only be used for shipping to protect the drivers from packing mishaps or young children.

I can honestly say that I don't notice any difference in SQ between grills on or grills off. But, having said that, I prefer grills off. However, I notice that i'm indifferent when using my system for movies. However, for whatever reason, when listening to music I much prefer the grills off. Just seem to enjoy the listening session more when I'm looking at the actual speakers.

What's a grill?

You know, one of those things you cook on at tailgate parties.