Hope everyone had a great holiday weekend. I ended up breaking my lower leg and had surgery to screw it back together, so didn't make any rounds Christmas day! Anyway, now that I will have 3 months at home on the couch I decided to do some long overdue mods on my speakers. I have a pair of SDA SRS 1.2TL's that I bought from a member here a couple years ago. They already had upgraded RD0198 tweeters. Soon after I did the crossover mods with Sonicaps and Mills resistors and WHAT A DIFFERENCE! Anyway, I decided to make sure my magnets never shift and my speakers survive many more years. After disassembly I decided to also inspect the passive radiators and cabinets. Glad I did. Keep reading.