Stahltek Opus DAC. Probably one of the best DACs around.. This is the Opus 'Master Reference' Sthaltek DAC and not the base Vekian DAC model. There is a huge difference between the base Vekian Reference DAC and the Master Reference Opus DAC.
"The Opus Series brings the already high resolution analog-like performance of the Vekian DAC and CDT to a new level of refinement, such as experienced in a limited reserved red wine. Just as the complexities in flavor of the grapes are refined to be more distinguished and more defined in a reserved red wine, the richness, complexity, and fluidity in sonic presentation have been refined to a new level of musical appreciation and enjoyment. Just as that first swirl of wine in one's mouth continues to develop and evolve, so does the musical experience continue to allure and involve the listener in the developing presentation "
The unit has switchable voltage. I also have the Opus Transport and will consider selling it as pair.