velociti

Hi I own a Promedia 4.2 system, and was thinking about adding an SWS for tighter bass in my dorm room next year. However, it's not really for sale anymore...Is it possible to buy a regular sub (Mirage LF-100 in this case) and hook it up to the 4.2 system and my laptop? I'm fairly knowledgeable about stereo equipment, but I've never owned a real sub, so I don't know about all the connections and what not. If not, I'll probably buy the Mirage anyway for my system at home (Sony receiver, Dynaudio speakers). Any help would be appreciated. Thanks. -Hans