I bought Nordost Blue Heaven under the simplistic assumption that there would be less intertwining of cables and therefore less possibility of ground loops or other unwanted phenomenon that I seemed to be getting with other designs. I think it worked because I haven't really thought about such phenomena in the years since I purchased them, but there may be some other explanation. They sound fine to me and I am not one that stresses much over cables. I was able to pick up some used Valhalla cables at an estate sale and I don't really notice any difference
