I have had quite a few different boxes in my day...........sealed, ported, bandpass (yeah, bandpass....)
anyway - it always seems that when I have a sealed box, I want a ported. When I have ported..........I want sealed. LOL
Sealed is great - I miss it (can you tell I'm ported right now?!?!). My fox is ported to 34htz, so when the bass line is right around 34htz.......its awesome! BUT, start getting away from there - not as much thump. Sealed, you get your thump throughout the spectrum. But, no single 10" sealed from fox when I bought this one. Oh well.