I have two questions, first is why are the Volt 6 and Volt 8 ported and the Volt 10 isn't ported. I thought they would have the same setup just smaller driver. If using Volt 6 or 8 as atmos, can you turn the box on its side and point at the MLP? Or would that not be good, I see no difference, but thought I'd ask. Or don't you need a port if you are using them for atmos?