Last night, I noticed that the dome tweeter in one of my speakers has a couple significant dings in it. I think it was damaged pretty recently. I think it happened when I laid it face-down (it's a floor-stander) to re-attach the speaker wire either after painting or having our carpets cleaned. Just laying it face down did not cause the damage (I've done this numerous times), but my 2-year-old daughter sat on it while it was face down (we thought it was cute at the time), causing the plastic tweeter guard to break off and dent the tweeter. The ironic thing is that the tweeter would not have been damaged were it not for the plastic guard. My question is, has anyone else damaged a tweeter in this way, yet still been unable to detect any audible difference? I've thought about contacting Boston Acoustics for a replacement tweeter, but it seems kind of silly if I'm not hearing a difference. Replacing the tweeter would only get rid of that nagging thought in the back of my head that I have a broken speaker.