I was playing with WinISD and it looks like I can build a 25.5 Liter sealed enclosure with a Stryke AV12 that will perform similar to a sealed 54 Liter Shiva. Of course the AV12 will require more power to reach the same SPL's. I was thinking of using an LT circuit to extend the response down to 20hz. Are there any downsides to building such a small enclosure besides the larger power requirements needed for the LT and the power needed by the AV12 to reach similar SPL's to a shiva? Obviously, building a bigger box will allow greater extension, but I wanted something small. Matt P.S. I also modeled the DPL12 but I think it needs a larger box.