Diamond audio hex series. Sizing question

[ItsHammer]

So I've been looking at the h600a from diamond audio but I'm confused on the size. One website says 6.5", another one says only 6" and Crutchfield says it's 6 3/4“. Soooo.... Which is it? Anyone?

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[blazian87 10+ year member]

Looks like 3 different sizes basically. 6.5 is most common anyway and the other 2 are discontinued.