Hello I use a fairly old pair of Heybrook HB-1 speakers from England as my mains in my HT setup. I love these, because they are crisp and clean sounding. They're not boomy sounding like, say, JBL speakers. They have a tweeter and a largerer speaker, roughly 6 inches diameter, call it the bass speaker for the moment. These bass speakers have a foam ring around the outside, which is how the cone is attached to the metal mounting ring. The foam is ripped. In both speakers. I don't hear any evidence when I'm listening to music or movies. I assume that if the actual cone was ripped, I'd hear a nasty crackling sound, like I've heard from cheap DJ's at weddings. So, is this repairable? Are there foam ring kits that you can buy and glue in place? Is it worth it if I can't detect a problem, even at high volume? The sound is still nice and clean. would you just leave it and see if it continues to rip worse? And while I'm at it, if the only kind of repair available is to replace the whole bass speaker, wouldn't this change how those speakers sound? I mean, I assume that the type of tweeter,bass speaker, wooden enclosure, plus the crossover really give the whole speaker unit its characteristics, and a major replacement would alter the sound coming out of it? It would no longer sound like Heybrook originally intended it?? So, what's the best approach? My goal is to enjoy these terrific speakers as long as possible. They really are good. Well, thanks if you can help. Tom.