Here is the 4P1L Siberian DHT preamp (Gen3) socket board. I’m using a pair of custom made teflon sockets mounted on a PCB sandwich with a 4mm silicon rubber sheet. The lower board is mounted over 4 silent blocks:
drilling the socket boards
Loctal sockets fit and silentblocks
finished socket board
4P1Ls
4P1Ls ready!
This should be a great improvement to reduce any further microphonic noise in the preamp!
Nice.
Good design, I like the double suspension.