I have the far from home 4k disc with me... haven't got the time to watch it yet....
Having owned and listened to quite a few svs subs, i can vouch for their both subs, sealed as well as ported. Sealed perform admirably well for movies and ported for music.
Svs sb3000 is a very special sub. It's transient response is just amazing. Having said that pb3000 is no slouch either and performs almost as good as sealed for transient response.
Even though on paper and visually, pb 3000 look better performer than sb3000 in low end and ultra low end performance, real world performance of sb 3000 is quite close to pb3000 for medium to large size rooms. Its only for very large rooms, pb3000 will be really beneficial.
As always, going dual is the best option, and thinking of getting my second pb3000. But before that, going to audition few other subs from other brand like rythmik, paradigm, rel and some diy and then take a call. May also decide on going back to 2 sb3000. For me subs are the most important part of my system and gets me most excited.
Cheers
Siju