Lets say I changed my subs tuning frequency from 45-50HZ to 32 - 35 Hz. What type of results should I expect and would there be any chance of hitting Xmax? Basically my sub has two ports and by plugging one of them up it would change the tuning frequency to those number according to LspCAD. Outside dimension 15.75x14.5x15.75 two ports, 7cm (2.75in) diameter and 15cm (6in) in length 10" sub I have no actual specs on the woofer. Just the enclosure Any advice? Would it be worth it?