Are there plans online for the Cain & Cain Wall-Of-Sound cabinet? I know its a design that Gordon Rankin came up with, but I can't find anything online about the innards. It seems to be something different than the Cornu Spiral horn design because the Wall-O-Sound exits from only one side.
It also seems apparent that it is no longer being offered by Cain & Cain/Lovecraft, as it's not listed on their website as a current product.
Thanks.