Information from the Telepolis portal:
The moderator of the diyAudio forum, signing as Pano, prepared a blind test in which four 30-second versions of the same fragment were made available for listening: the original file, a recording passed through 180 cm of professional copper cable, through 20 cm of wet mud (combined with 120 cm of copper), and through a 13 cm banana (also made of 120 cm of copper). Respondents were asked to determine how the sound signal was conducted in a given recording. The results of the blind test are: The answers were very inaccurateâof the 43 entries, only 6 were correct, giving a hit rate of about 14%. Statistical analysis of the results indicated that such a result could have occurred by chance with a probability of a few percent. In other words, the bananas and the mud sounded almost the same as the copper cable. 
â Now, supporters of cables with cosmic dust on their veins, you can give your surplus money to your family. 