More on the voltage sensitive eq – Zapco DC Intro User Manual
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More on the Voltage Sensitive EQ
Another example: a. You are in sound-offs in both SQ and SPL b. For SQ listening
you never play at more than 3 volts output c. Your vehicle resonance is 60Hz.
With VSEQ you can set you EQ to give you a 15dB boost at 60Hz
only
when you
turn the volume past 3 volts output.
So you can change your tuning from SQ
to SPL by simply turning up the volume!
60Hz boost triggered at 3.155 Volts