Due to WAF, I am considering building a subwoofer that will blend into a room as a table. Not as the usual cube on the floor type, but as console type table with legs. What I am thinking of is to build a Shiva based Adire alignment sub, but stretching the box dimensions lengthwise, and shrinking heightwise, keeping the same volume. I'll be putting the whole thing on a sturdy quarter sawn oak apron, with through tenon and biscuit joints. Its going to be a "Mission" sub. The apron will hide the driver and amp underneath. Qtr Sawn Oak veneer on the box. My question. Is there a limitation on the dimensions a box can take? Does it matter if the box is only 8" tall internally, as long as I can fit the port tube? How about a trapezoidal shape? Would the non-parallel sides be OK? If you can build a sonosub, why not a traposub? I have a bay window behind the couch and a trapezodal shape would fit right in. I just bought an SVS 20-39CS sub used, and even I think the thing is too big, even though it fits in an unused space behind my speakers. I promised my wife a table and can't resist the thought of combining the two.