https://github.com/mansr/sox/blob/0be259eaa9ce3f3fa587a3ef0cf2c0b9c73167a2/src/sox.h#:~:text=SOX_ENCODING_DSD%20%20%20%20%20%20%20%2C%20/**%3C%20Direct%20Stream%20Digital%20*/
While I have a bit of confusion between the different forks of SOX, this one specifically supports DSD and if I use a memory hack with TuneBrowser and replace the DLL it seems to work fine.