Hey all, I've got an audio related question for you guys/gals: I understand the logarithmic relationship to SPL, but would someone help me out with a simple question and post a formula as to how you arrive at an answer? Assuming a start value of 150 decibels, what pressure level would represent a magnitude of 1000 times increase over 150dB? -As a side note, cool forum! Everything from mathematics to religion and alien abduction; you don't find that often! I'm sure I'll be spending too much free time reading threads in the future. Thanks!