Thirty one is a single package that includes a spectrum analyzer and a graphic equalizer, both has the standard 31 one third octave bands. This pair of tools is very common in every rack of any live mixer as the final tool in the master bus, for this reason we decided to recreate the behaviour and specific time response of a very common Italian analog spectrum analyzer. The equalizer is also inspired by analog units allowing ThirtyOne to recreate that master chain feeling that you are used to.