I wish I had a schematic for the TC Preamp-3 board. I wonder what that 16 pin header is for? I can see the input into the board from the input PCB/XLR combo jacks. I can't see any other headers on the top so I assume that 16 pin header is the opamp into the amp board. I'm surprised you guys would use a header with such tight pin density and small pads. The unused 4 pin header through-holes have much larger pads that would be much better to send source to the amp boards. Also I notice the pins are steel. Why not use copper pins as this is a VERY important interconnect!
Solid-State
