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I’m about to build an aux switch too. I’d like to use it as a lead boost mostly, make a presets spit out a couple db’s more when engaged. Would that require a ‘normally open’ switch as well?

I also did a little research on a diy fs300 style switch. I learned that this would require 3 ‘normally closed’ switches. Is that right, and if so what makes the difference?


Thx in advance!