if you want to get the SPL plot to work, the specs need to have the sensitivity listed. You will probably have to add teh driver to your own database and be sure to put the sensitivity in there. You always want to have as flat of a response as possible. If you want more upper bass output, you can make the box so it has a Q of about .9 (make the box smaller). It will retain decent quality and increase the upper bass regions a bit.
