Well i Just Bout this, I had a Infinity Reference 1220W Before and had it in a 2.1cu Ft. ported Box, which was about the recommended Size. ANd i put the New Kappa in that, recommended Size Ported is 1.75cu Ft. I was wondering which would be better, the 2.1, or the 1.75 Infnity Says to Use? THanks