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

At least you tried. Next step, remove the plastic dust cover. 

Gave it a try and listened in the nude. At first deep bass passages made my chest hairs oscillate and it felt strange. Then I wondered is the the deep soundstage I’ve been missing all this time?

Lowtubes, i’ve Been in the hobby for many years and yes removing the grills is quite elementary for any audiophile. My point was to the impact this made to the overall sonic improvements. I’ve owned over 50 hi-end speakers and have probably removed more grills from speakers than I care to mention; so removing the grills isn’t new to me. As for the comment about Focal from Jon-5912: I can only say never comment on something that makes one look so foolish when they don’t have a clue to what they’re talking about!!

Guys, the grills, no matter what material they are made of, will affect the sound. Most of us are in this hobby because we are looking for the purest, most musically satisfying sound we can achieve. Otherwise, we would had stood with receivers and average Components. We spend and spent a lot of money in this hobby. If one has to use their grills to tame brightness or shrill sound, that means the setup is not tweaked correctly. Grills when used always veils the sound SLIGHTLY and when not used, opens up and give a clearer picture into the recording. Removing the grills doesn’t give more resolution or things like that, it just lifts a slight veil that is between you and the music. Transparency, clarity and openness of sound, focus is what’s immediately noticed. 

@jacksky....Hmmm....the only times I've listened nude is when I was 'occupied' listening to 'someone else'....;)

Real 'primal' live stuff....nothing for 'reproduction', frankly.

Even the practice sessions tended to go well...*G*