I was thinking about non-wood materials, composites, and so forth this morning and had a question for you. Is there a reason, other than ease of construction due to use of wood, that cabs are boxes? what made me start thinking in alternate materials was a soda bottle. through design tweaking and the use of sperical space they've managed to "shrink" the 2 liter bottle quite considerably, yet it holds the same VOLUME. could this sort of thinking be applied to cabs? in the past three to four years i've spoken with many gentlemen in the "plastics", molding, and fabrication business. no doubt an amazingly expensive venture to get to production. i had a fictional widget prototype quoted $15k. could have been less, or more, but for the size aluminum block to make the mold, $10K minimum, for a prototype. (although if the prototype was right the first time, hundreds of units could be made from it). it seems ridiculous, though, when you consider how much empty space is involved. but there is a manufacturing process called transil wrap. it works in a way like dipping a candle, spinning a potter's wheel and vaccuum sealing, all at once. and the post comes full circle-- do boxes have to be boxes if the TS math works?