As NOEL96 said; 0 dB (hearing threshold) to 120 dB (loudest): the range is still 120 dB
I think most musical instrument and audio equipment manufactures are starting to use 0 db as the very threshold of quietness that most people can no longer hear a particular sound. 1 db is the first and quietest perceived sound level. If we use that as the starting pint to measure from then 120 db is the threshold of pain. Where most people will experience pain in the ears.

I typed "decibel comparison chart" in a google search and got many pictures of db charts. The ones I saw start at 0 being the quietest a person can hear.


Does the noise in your head bother me ?