Depends what your definition is of analog sound. Most people I know think analog is bloom sounding sort of like the tube dacs in Kora Hermes and Musical Fidelity Tri-Vista. If you are saying that you want an easeful sound then that would be one way to look at it. Some of my favorite DACs are the Museatex Bitstream stock and modified form, the Lampinzator DAC and the one I had built for me which uses a stacking chip set and transformers. Adding the transformers really improved the sound by removing AC noise and keep a few caps out of the signal path. This produced fantastic tone and let the music just flow out. While all this worked for me, the most improvement I hears was using direct heated tubes in a custom built preamp. That has been the single biggest upgrade I have heard.
Happy Listening.
Happy Listening.