Sauvignon Linestage Preamp or Joule Electra LA150


Has anyone had the chance to compare the Supratek SAUVIGNON Linestage Preamp-$US3500 with the new Joule Electra LA 150?? I'm using the EMM DCC2 as a preamp now and feel that either tube pre amp would give me more of the "harmonic structure" I know is still hidden in the music.
128x128darrell