So Spinal Tap could have been an even LOUDER band if they had used a smaller reference, say some fraction of a micropascal. Or even gasp 0 micropascals for INFI

So Spinal Tap could have been an even LOUDER band if they had used a smaller reference, say some fraction of a micropascal. Or even gasp 0 micropascals for INFINITE dB. Wow that must be so loud.