I am toying around with the idea of my next sub. Currently have a dual Shiva Sono and am very happy but as always there is never enough good bass. After seeing the "closet" sub on M. Knapps site I had a few ideas. My HT is set into an alcove in my family room. THe size is 6' wide and 2.25' deep. My equipment and TV take up about half the height and leave a big empty space above. I was thinking of either doing an infinite baffle panel above with several subs or framing a sealed enclosure into that space and making it stealth either way. If it was selaed I could drop down about 2.5 feet giving me ~33 ft^3 of space. What would be the advantages of both and how feasible are these ideas, be honest and critical as I want all opinions.