Stevepo, I have HD 7 coming and will be in my system in the next week or so. I will be able to compare them to my MIT M1 and my Synergistic Research Galileo Cells. The Synergistic beat the MIT by a large margin. If the HD7 beats out the Synergistic by a large margin that will be impressive. I do not expect that. I am hoping for a small improvement, if at all. AS the HD7 is less money even if it equals that is an improvement of sorts. Though the Galileo Cells are not speaker wire in themselves so it is not an apple to apple comparison.
I will post my initial impressions ASAP.