I built a sealed sub box to hold two 12' subs, the only problems is that I forgot how to devide by two when I put in the center piece. Anyway, the two different chambers are off by 354in². Considering that the chambers were originally intended to be 1.75 ft³ each, is this difference really going to matter or I am stuck having to put additional material in the larger chamber to displace air? I am not an audiophile but I don't want it sounding like crap either. Thanks.