I alaways wont to when I have friends over but I just know the minuite I did some dumb ass will stick there finger through one of them.
Ya just cant drink beer,listine to loud music and act like an idiot without something getting broke.
I think my Paradigm Studio 40's (Cherry laminate) looks much better without it. But since Paradigm's sound is on the "bright side", I'm waiting until they're totally broke-in to decide if I use the grilles or not.
My Mission 77c1 center looks cool without the grill. The triple tweeter down the center then the 2 gold tips on the drivers look like two cold gold nipples. Plus the speaker is 7 feet up so no problems with anyone poking it.
My new B&W 600 series look a lot cooler with them off, but keeping my son from sticking stuff in the ports and damaging the aluminum woofers means keeping them on during the day. Most grilles do reduce the amount of treble above 10k by a very slight amount, but I can't really tell the difference.
ManojM, u have the B&W Nautilus? How much do those run for, I was afraid to look for a price once I saw the design.
I use speaker grill on, the speakers are right beside my cpu monitor and I know accidentally kick a cone in when I'm not careful. When company is over I'll take the grills off so they can see and audition them.