How do you pronounce Kon's name?

You kind of just answered your own question there... In the dub, it is pronounced as 'cone', but in the subbed, it is pronounced 'Kou-na', or 'K-on' - at least, that is how I figured I would translate it. You see, it depends on how the series has been voiced and such. I think, technically, it would be the Japanese version, as opposed to the dub, because the name is supposed to be a Japanese one.