[ballaratdragons (Ken)]

Already explained magnets a couple of times now. Find some junky speakers , preferably different sizes for different weights.

Place a flat screwdriver in between the magnet and the speaker body and tap the screwdriver with a hammer or something else. The magnet comes off easy as it is only held by a few aluminium rivets.

I glued some bicycle inner tube rubber to one side so they don't scratch the OTA.

See below for photo of them in use and one of them is turned upside down to show the rubber.