First, what sub do you have now?
Second, what are you looking for in a sub?
I'll agree that having 2 subs is better then 1, but only if the 2 subs are decent, compared to the single unit.
I know Jaxvon likes their speakers, but I don't know how they fair for subs.
Also, whats the price of each? If its over 300-400US, get 2 PB-10ISD's from SVS, from what I have heard, it would be a killer setup.
SheepStar