I have built a sealed enclosure for the shiva-x2 at 3.66ft^3. While searching around on the diycable website I run into the tempest-x2. Download the pdf and see it models fairly well in a 3ft^3 box. According to the pdf it can hit ~25Fs in the sealed enclosure. My question is will the tempest fit my 3.66ft^3 enclosure better than the shiva-x2? Let me know as I plan on ordering ASAP.