Forum readers: Any help on this one would be deeply appreciated. I have just about finished building an Adire Alignment Tempest sub using 21 inch diameter Bristol sewer pipe. This stuff is 5/8" thick and can be used to fire Scuds. Getting the miscellaneous parts was no problem. Now, using the same pipe, I am beginning to build two Pro Audio style subwoofers for my son who is beginning to dabble! in the DJ arena. The drivers are 18" Adire Maelstroms. Here is the problem - I cannot find two-piece speaker grills for these babies anywhere. Does anyone have a source? Andy (xolepa) p.s. The waffle style grills I deemed inferior as objects can pass through them when the drivers are top-firing.