I was looking at the video on the Technical forum and it said everything is explained on the Technical forum in great detail, but I didn't see anything except that video and I didn't want to skim through and try to find where they mention High Qts. Basically, I have a truck and I can fit 6" mounting depth subwoofers in my sealed box. The Fi SSD 10 already requires the low space of .2-.6 cubes so what exactly does the High Qts option do?