What is the difference in the hospital grade and the Pass Labs Ching Cheng? My McIntosh amp also came with Ching Cheng which are a little thicker than my pass labs cords. Maybe they are Hospital Grade?Keith has sailed away and will not be reading this question, so I will answer for him: I use five Ching Cheng power cords that I got from David Karmeli. Of six cords I tried in my system, these were the best. The stock Chinese cords that came with my Pass Labs amplifiers came in second. They happen to also be made by Ching Cheng, but they are newer, shorter, and not hospital grade.