Tbg - Might you steer Bob and myself to some technical articles able to explain how these directional fuses work over conventional variations? I can't speak for Bob, but with over three decades of electronics background, I'm unable to grasp how a "directional" fuse could perform better in one dirrection over another, in any AC circuit, of which Bob has already mentioned some audio-related examples. Does ANYBODY have technical info able to explain?
People provide endless personal testimonials for a vast assortment of products (some "questionable"), but to a large percentage of audiophiles, this isn't "proof" of positive performance. I'm sure there are numerous products that even YOU scoff at without trying (clocks, pebbles, etc).
Surely we can keep this civil.