i need to know what preamp was being used in these demonstrations; i don't know much about the guts inside of
a high-end component, but i've read here and there that, inside of a well-thought out component, there
is alot of pre-treatment of the current coming into the box before it is utilized by the circuitry responsible for the the signal and noise rejection before it is passed on to the output jacks. i have some aftermarket pc's myself, but after using a decent power conditioner for source components i hear little advantages other than the nicely built connectors they come with. plus, none of the stores i frequent have ever bothered to set up demonstrations using power cords either. they sell them, but with the caveat that it's up to you to see if you can hear a difference or not in your own home.
this would indicate to me that they're avoiding any arguments over the lack of dramatic results that might come out of such a demonstration. plus the fact that an electrician has already customized the room outlets to a fair (perhaps fanatical) degree.
a high-end component, but i've read here and there that, inside of a well-thought out component, there
is alot of pre-treatment of the current coming into the box before it is utilized by the circuitry responsible for the the signal and noise rejection before it is passed on to the output jacks. i have some aftermarket pc's myself, but after using a decent power conditioner for source components i hear little advantages other than the nicely built connectors they come with. plus, none of the stores i frequent have ever bothered to set up demonstrations using power cords either. they sell them, but with the caveat that it's up to you to see if you can hear a difference or not in your own home.
this would indicate to me that they're avoiding any arguments over the lack of dramatic results that might come out of such a demonstration. plus the fact that an electrician has already customized the room outlets to a fair (perhaps fanatical) degree.