I've just done a fresh install and I can't figure out these settings for the life of me.

I have a Blue Snowball connected by USB and a FIIO DAC with Audiotechnica M50X's.

I've been through every option and the only one that lets me connect is the attached photo.

any help is appreciated thank you

Hi James,
Please try the “Windows WDM-KS” audio system.

I can recommend specific sound settings if you go to Help | Show log and copy-paste the technical information that gets displayed onto the forum.