While Sean is 100% correct that the magnets will change the driver Q, it is ever so slight that I know of no one that could hear a difference.
5 minute epoxy works very well and if you don't like the sound after installing them just take a sharp chisel, work it around the edges and pry the magnets off.
5 minute epoxy works very well and if you don't like the sound after installing them just take a sharp chisel, work it around the edges and pry the magnets off.