Klipsch Speaker teardown

I had this speaker in my 2010 Honda Pilot since November 2013. Out of the 4 in that truck, this one started making strange sounds. I have a 600 watt Alpine PDX amp on the interior speakers. 4 channel, going to 4 of these speakers and 4 tweeters. 9 and a half years later, weird sounds. I never pushed it where these speakers popped and never stressed them out. I knew something wasn't right, so I decided to tear this one apart and dissect it, I am glad I did. What a strange design in my opinion. 49 years old, I've been into audio and speakers since forever. Tore apart many over the years and this magnet design is odd to me. Makes no sense. How many other speakers are like this? Glued? very odd to me.