I have the ProMedia 5.1 Ultras (computer speakers), luckily mine have been working without issue. I was moving them and dropped the center channel, after opening them up to insepct a rattling I noticed that the circular magnet on the tweeter fell off. I'm not sure how speakers work, but it doesn't look like anything tore and that it was just held on with glue at first. Any input on how to fix this? Can I just glue it?