I know a square driver has more surface area, that isn't what I asked. I asked what the theory of a flat driver over a cone was.What does the FLAT driver do over a cone. Other than reduce your surface area.
depends on what the material is and how thick/heavy it is. alot of woofers from ppi to ed used flats beforecone is more rigid than a flat surface, and a cone has more surface area than a flat surface(although it is minimal). mostly, a flat cone is purely for looks and to be different.
however... in this case i am pretty sure they went with a flat cone due to the lack of a conical cone of that size being produced, and the fact that there wouldneed to be 4 triple joints meaning that the cone would have some funky tolls on it and would be expensive to produce.
p.s.--- whats a trampalen //content.invisioncic.com/y282845/emoticons/banghead.gif.8606515f668c74f6de0281deb475b6fd.gif
Would be easier to glue, however it is not stronger...nothing for the glue to really bond to..and that is where some of the problems with the flat design have come in...I would think the reason why they went with a flat cone would be because, wouldn't it be easier to attach more than one voice coil former to the cone. If they went with a standard cone design attaching more than one former, would obviously make it difficult.
p.s.--- whats a trampalen //content.invisioncic.com/y282845/emoticons/banghead.gif.8606515f668c74f6de0281deb475b6fd.gif
Actual surface area of the 'cone', be it cone shaped or flat, is irrelevant. A few manufacturers tried to dupe unknowing consumers a few years ago with 'deeper cones for more surface area'. Its complete BS, like NDMstang alluded to, its only the area of the radiating surface that matters. The footprint of the sub's cone if you will. A 12" sub with a flat cone will have the same radiating surface area as a sub that had a cone a mile deep, assuming same size surround etc.cone is more rigid than a flat surface, and a cone has more surface area than a flat surface(although it is minimal).
and i dont remember much about the PPI's, other than seeing one once before before i knew anything.