If it was possible to have a sound source of 4225 db, i know that at 1m it looses 11dB then every time you double the distance it looses 6db.
IE: 1m = 11, 2m = 17, 4m = 23, 8m = 29 etc etc
how far would it take in m for the dB level to go from 4225 to zero? working on the above formula?
Edited for 1m and revised for above example.