I'm looking at a couple different boxes for my Fi SSD and have pretty much narrowed it down to two. One box is around 3 cubes, has two 4" diameter aero ports 4" long but is tuned to 55Hz. The other is your standard ported enclosure, but only has 1.8 cubes and also comes with some polyfill "sheets" I guess you could say on the inside of the box. Which box is better for an spl design and would give me the best lows? Is there any way i could lower the tuning on the aero ported box? Thanks
