Aaudio Imports is selling $39 gold plated fuses for sound system equipment. The description on the website reads, in part:
Fuses always carry high electric current thereby causing metal fatigue. This would then adversely alter the conductivity behavior of the fuse element and hence the performance of the equipment.
A CNET reviewer says "the fuses did make a difference. The sound was fuller, weightier, and the stereo imaging was more 3D with the fuses in the speakers."
As Windell and Lenore of Evil Mad Scientist Labs say, "Yet another reason for double-blind studies."