I own a pair of Event 20/20 as well as a pair of 20/20 bas powered speakers. Both pairs are in great condition but I was wondering if I need to do anything to keep the speakers in perfect shape such as using a cleaner or moisterizer, etc. They are by far the best sounding monitors I've ever owned and having had them for several years, I need to know how to keep them in the perfect condition they are in. Thank You, bmancini777@yahoo.com