Since my reciever will support it, I''d like to add another sub to my HT setup. My setup is all Paradigm monitor series with a single PS1200 sub. I've been quite happy with it but kind of have the "upgrade" bug.
My question is: Do both subs need to match eachother in size/power/LFE? I don't really know what to expect for a benefit from a second and I'd probably use Audessey to help adjust the levels. Paradigm no longer makes the PS1200 so I'd be looking for a used one- or can I get something else? My room isn't large (15x25 plus a 12x10 opening)