forgot to ask, referring to the building instructions above, only pin 2 and 3 are mentioned. What about pin 1? I mean they were talking about balanced TRS connectors here right? What do I do with the remaining pin? Connect to the chassis for grounding? Just a wild guess....I know nuts about electronics....
I was thinking of building this whole thing into a cardboard box or something temporary. Don't think I can find any metal chassis that can fit TRS jacks here.....so do I need grounding of some sort? I have to ensure the three pins are never connected in any way am I right?