EVO 100 Tube DACIntroducing the worlds first tube based data clocking device: the SuperTubeClock By incorporating a low noise mini triode vacuum tube into the digital clock, this boldly conceived design provides vastly superior resolution, detail retrieval, improved clarity, increased definition and detail from top to bottom. AC Offset Killer is about goose bumps. The ones you get when music comes out of a background so quiet, you may say to yourself Just how is this