"N_Cook" wrote in message ...

Would the Xovers ever get hotter than 50 or 60 degree C?

They'd barely rise above ambient.

If never then hot melt glue. Heat the coils and the other surface with hot
air gun at a low setting and then apply hotmelt glue, forms a much stronger
bond than if applied to unheated surfaces. If you have to remove them later
then just apply hot air and leverage.

I'll consider that. The manufacturer recommends using hot-melt adhesives, so
it should be okay.