Glue together a giant sandwich after I cut things into properly measured strips ...
I have a sheet of nine-ply oak hardwood plywood, two sheets of MDF, a sheet of concrete backerboard (mostly used as a backing for mounting heavy ceramic tile vertically in a humid environment, such as a shower wall and often dual purposed by innovative speaker manufacturers to add large amounts of mass to an enclosure).
The sandwich will be a facia (Oaken hardwood), glued to MDF using standard aliphatic resin, glued to backerboard using a two part polymer mastic which never cures to total hardness, but remains somewhat flexible, glued to MDF using the same two part mastic. This will make up the "planes" of my "linear array" speaker system. I plan to cut the pieces in a way that will allow me (by stair-stepping the edges as I create these three inch thick panels) to end up with an advanced multi-faceted rabbet joint at the corners, each strip cut to a nine and one half degree miter, resulting in the desired nineteen degree offset from the front-facing plane. Once the sandwich strips are cured for a few days, I will be able to assemble them into a column (again, using the polymer mastic which never becomes completely hardened) with a cross-section resembling a truncated conical, half-tube.
I will end up with a three inch thick baffle-board, made of four layers of three dissimilar compound materials which all restrict resonances by the conglomerate nature of their individual construction, combined, with which to mount the eight, ten inch drivers and eighty, two inch drivers per stereo side.
I expect these speakers to really ROKK my "friend's" brick basement/party room with just a watt or two. Once I demo my two watt amp and knock his hair back, I will hook up his six hundred watt AV receiver for him to enjoy, long term.
The leftovers of the four sheets of material will be used to make two "feet" or bases for the array column to stand on, each made with the same sandwiching technique.
, and quacks like a 