I have aquired a new Infinity Kappa Perfect 10.1 sub.

I have never had a ported box before in any of my setups but I am toying with the idea of trying one.

Infinity recommends a 1 cubic foot vented box with a port 10.4" long and 3 inches in diameter. This tunes the box to 35Hz. How do you convert a round port to a slot port? Does shape make a difference in port noise? Are there any other general rules to consider regarding vented enclosure construction?

I have noticed by looking at the boxes and parameters page that the ported box is more efficient across the whole range but there is a huge increase in output at the tuning frequency whereas the sealed chart is more constant.

I listen to a pretty broad range of music ranging from rock, hip hop (those are the main 2) to acoustic and instrumental.

I am running 350ish watts rms to the sub via a Pheonix Gold Xenon X400.1 and my mids are Infinity Reference 6.5" components in front with matching coaxs in the rear. Those are powered by an alpine MRP-F450.

For my tastes should I try the ported or stick with sealed? I do really enjoy tight and clear bass. This one sub is replacing 2 Infinity Reference 1030Ws for the sake of trunk space and the fact that I don't really crank my music anymore except for the odd urge.

How can I tell whether this sub is naturally better suited to a vented or sealed enclosure?

Thanks for any input.