A little subwoofer advice, please


Tried the Theatres as HT speakers over the holiday, they kicked some serious alien butt. Now the little Missions on stands look so forlorn next to the screen I want them to have a subwoofer playmate.
I found a sub-woofer amp at MCM for $70, pretty good features and specs. Likewise Parts Express has a 10" woofer Ultimate WR1025cs shielded for $22.50. Previous posts seem to indicate 3.5 cu ft box kind of generic, yes? I tried looking at Boxplot and PiAlign but I get cramps when I see graphs and numbers. It was a freakin' miracle I figured out how to download 'em!
So the woof has:
fs 36Hz
vas 1.89 cu ft
qms 4.04
qes .84
qts .69
xmax 2.6
Anyone care to indulge me as to box and port dimensions? And would 2 woofs in one cabinet make sense? If so, does one just connect pos to pos, neg to neg like bi-wiring? or what?

Thanking someone in advance ......


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