10-12 mm still isnt badYep. You can't really have a woofer that shallow with a really high xmax. 10-12mm xmax is honestly about as much you can realistically hope for.
i wonder why:uhoh: //content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gifseems as if they were taken off the market. they were once sold on sounddomain.com