I know I posted some of this below, but it got lost in my Maelstrom post. My question, is there anything wrong with using such a large diameter sonotube in a short height? My design for the 214L adire alignment(tempest driver) calls for a height of 22" where-as obviously the diameter is 30". I am looking to keep the top of the tube plain by keeping the sub and the ports downfiring. That way, the sub will look like nothing more than an in-table, albeit a very wide one, heh. Anyhow I am looking for any and all opinions, please feel free to give yours, thanks.