If you are still interested I have just posted a review of the HE1000's and Violectric V281,having just replaced my Taurus mk2 amp with the German amp. Its on the Official HIFIMAN HE1000 impressions thread. Only posted it today.
The main conclusion of my review is that the Violectric is a superior amp and has sonic benefits that the Taurus lacks. Its presentation is simply more powerful and smoother, whereas the Taurus could sometimes get a little muddled in complex passages of music....Had a tendency to be a little bright in the treble as well with certain music.
Unlike the other commenter I have not detected any Boomy upfront sound at all when driving the HE1000's. Its an awesome combination believe me.