Special license requirements?
Besides the regular dB (A) standard the SPL6 also takes into account low frequencies in dB (C) and overshoots dB peak within the music. The exclusive 10 bands octave limiter allows the reduction of single frequency bands. Also the average sound pressure (Leq) is being calculated over different periods and weightings (Leq and LAeq LCeq). This makes the SPL6 very useful for live events.
Read more about the SPL6.