The difference Between Boston Acoustic 6.4's and Boston Acoustic Z6's?

[Starky]

I know the z6's are much newer and nicer...but how much better do they sound? what makes them so much more expensive over the 6.4's? they both handle the same amount of power, why would one pay hundreds more for the Z6's?

[Starky]

bump

[squeak9798]

I had the Pro6.5's, and from listening to the Z6's they are simply in a different league. Not that my Pro's were bad; but the Z6 just sounded better all the way around (as they should, for the money). Smoother tweet, better sounding midrange, etc etc.