i did the CSS Quartet10 build basicly just how CSS suggested, 18" cube, sealed box, its a 10" driver and 2 10" APR's. these guys are talking about ported sonotubes. does that matter?
i'll do a comparison of side and down when i get her finished this weekend.
Display: Panasonic TC-P50ST30, AVR: Pioneer VSX-1019AH, Fronts: Klipsch SB-1, Center: Polk CS 10, Surrounds & SB's: Infinity TSS-750, Sub: CSS Quartet 10 Kit, Win7 HTPC, XBOX 360