OMG, just removed my speaker grills and the sound just opened up to a new level!

My Klipsch Heresy IIIs sound a little more "open" with the grills off (this could be imagined, but so what?) but look better with 'em on...since the grills are held on by magnets I try to remember to put them back after an "active" listening session as since they're tilted back they collect dust on the horns and the bottom ridge of the woofer. The dust refracts sound and reduces the accuracy of the speakers by .000243%, which can make violins and lap steels sound orange-ish. The best way to clean the horns is to take the speakers outside and blast the horns with a power washer...sure, it warps the cabinet and the horns don't work for a few days, but the dust is gone.

I just removed the grill from my Cheese Sandwich Model 100 speakers.  They are less tonally dark, and softer.

I found that my speakers sounded much more open and had a far better sound stage after I took them out of their shipping cartons.

Wish I had done this six months ago.

The high end detail now is amazing.

I remember the CSM 100's....they were unappealing until someone tripping fell against the TT, causing the tone arm to skitter across the record at full volume.....

...after everyones' ears stopped bleeding, the cones had all inverted...looking like cheap Ohms....

They only sounded better when they got thrown on the bonfire.....

They stopped playing....

...but the grills were great for melting marshmallows....*S*(⊙_⊙;)