I've been having this pair of speakers for about a year now and have been fairly satisfied, especially because it's my first good pc speaker set. A week ago while I was watching a movie, I noticed that at some point my subwoofer produced a rattle sound. I didn't give too much attention at first, but after hearing it again I went ahead and played a bass heavy track to see if I could reproduce the rattling my woofer made. I was able to reproduce it, I'm not entirely sure whether this is normal or not hence I'm posting here. I'd highly appreciate it if anyone here can confirm that this is normal behavior for my speaker set (maybe too much bass), here's a link to what it sounds like:
