Just line level in with passive volume, and at least 2 inputs, either with rotary switching between or a toggle. No phono stage and no built in DAC, just basic. My guess is most users will have a DAC plugged into it. I have found over the years that these flea powered single ended amps do wonders with digital. I was considering the Seductor for my Omega Alnicos, and alas I find it's gone. With a slight rearrangement of the top plate, I think the 2 above mentioned features could be added. My experience with EL84 and 6P15P tubed amps has been some of the best in my 40+ years in audio. Cheap to roll tubes too.