DNM Reson is my preferred unbalanced RCA IC. THey always seem to sound the most coherent and lively end to end and in particular through the critical midrange and draw me in the most as a whole compared to others I use. Currently using these throughout my main rig for both digital and phono sources and from pre-amp to amps.
ALso use MIT, Harmonic Tech, Monster, Audioquest.
ALso use MIT, Harmonic Tech, Monster, Audioquest.