No not quite, though it appears to be a "double roll" rather than a simple foam. It would appear that your selected surround is "applied" to the cone whereas the JBLs are a "part" of the cone and of different material.
Of course the JBLs also have bigger voice coils, more tesla, higher BL, etc., but I don't think they are suited to open baffle mounts.
Another qualifier when I put these together was that there would be no foams to rot and replace, again at the expense of deeper bass.