What exactly is the point of putting fiberglass or polyfill in a vented enclosure? For applications above 100hz I can see it being usefull for stopping standing waves. But what about for subwoofers? What is the point of using stuffing in them? For sealed boxes it can make the air stiffer, but is the same thing acomplished in a vented box? Also, for a subwoofer, why put any dampining in the cabinet, what good does it do, doesnt it prevent higher frequencies? Could someone explain how the stuffing works in a sealed enclosure? thx.