Sorry if this doesn't belong here, I wasn't sure where to post a software related question. But i was just wondering, In the "Room Acoustic Properties" panel of bassbox pro, you can enter the SPL of certain Freqs. It starts at 5Hz, then 6Hz 8Hz, 10Hz 11Hz etc etc. How do i properly use this?? Do i get an SPL meter and test tones, and measure there SPL from my listening position and plug the results into bassbox?? I kinda wanted to play around with this to more accuratly see how my sub is doing.