No I am not personally familar with the Helikon. The impression I get from people that have owned it is that the Helikon is a good performer at it's price point of about 2k retail but does not compete with the LP or XV-1s. If you could find a new or near new Helikon for $1200-1400 it would be a good value but it will not match the top Benz or Dynavector products. I have also owned a Benz Ruby H over a two year period and it too was very good. Very similar in tonal quality to the LP but less refigned and a half click lower in quality to the LP but still excellent. I think I would personally perfer the Benz ruby 3 over the Helikon because of the great full body tone the Ruby has but hear again it is a mater of taste as some people might perfer the leaner but faster Helikon.
Johnny
Johnny
Johnny
Johnny