Powered Car Sub Car Audio: Will I Have To Have Two Infinity Basslinks (powered Sub) To Hear Left And Right Signals?

Car audio: will i have to have two infinity basslinks (powered sub) to hear left and right signals? - powered car sub

I like the Infinity Basslink and subwoofer, but you have to buy two to hear the bass from one side to the left and right? Wil I factory radio and four Pioneer 6.5 "speakers in it. ... Thanks guys