I would consider a sphere to be the best shape for a speaker enclosure, with a tube second, after trying to find a decent compromise between a tube and box I came up with 45 deg bracing which seems to work. The diagram shows how I perceive a box to flex with unbraced, conventional dowel bracing and 45 deg bracing. The 1 refers to cork between thin ply to stiffen/dampen the enclosure ( that didn't seem to do much ) and 2 is the bits of thin ply used for the 45 deg braces. If you want more ideas about using dowels for bracing I would recommend that you google locomotive firebox stays.
A sphere is a good enclosure when it comes to diffraction on the outside of the box, but the inside of the box is one of the worst possible shapes.
B&W did the research, as has also been done even more extensivily with devices that move thru the air (like cars), that the best shape is probably a tear-drop shape.
Its size will relate to how low it will be effective.
And i suspect there are much more elegant ways of dealing with balloooning of the enclosure.
dave
B&W did the research, as has also been done even more extensivily with devices that move thru the air (like cars), that the best shape is probably a tear-drop shape.
Its size will relate to how low it will be effective.
And i suspect there are much more elegant ways of dealing with balloooning of the enclosure.
dave
