Exactly clearthinker although, people who are use to listening to known defects are better at identifying them without blind testing. The lay audiophile does not have access to this kind of equipment thus is flying blind. It is easy enough to build AB switch boxes. I'm surprised nobody sells them. Since the birth of remote control in audio it has become easy to switch sources. I have my old blind relay driven switch box with RCA ins and outs but I have not pulled that out in decades. I decided on the wire issue decades ago.
Anton, while all that true to some degree I find it most applicable in comparing performances of the same piece by different artists. You forgot to mention the visceral component to live music that is frequently missing from reproductions.
Anton, while all that true to some degree I find it most applicable in comparing performances of the same piece by different artists. You forgot to mention the visceral component to live music that is frequently missing from reproductions.