DiamondBoxx Replacement Woofer for XL2?

The magnet that connects to the voice coil on one of subs fell off. I tried to remount it, but the speaker still rattles. I’m looking to get and install a replacement for that sub. Anybody know where to source it from a third party? I’m all good on being able to solder the new one in, but just want to make sure I’m replacing it with the same part. Thanks!