I got a pair of B&W 685s yesterday and they are so beautiful that I am reluctant to keep the grills on. Apart from bats and kestrels flying into them, is it important to keep the grills on place? Will dust and things damage them over time? How would I clean them? For those looking for small bookshelf speakers, while there are probably a few esoteric brands that offer better imaging at this price, I find these speakers are remarkably good. I got a really cheap NAD amp (C315BEE) to drive them and an Airport Express to feed my entire library (14,000 tracks or so) to them and I am now in audio heaven. Having instant access to one's music collection plus a Hi-Fi output source is absolutely wonderful. I feel sorry for those who shuffle among their hundreds if not thousands of CDs looking for what they want. A search string works much better!