I assume you had two beers in the process of testing speakers. By the second beer, your blood vessels in your ears opened to their fullest, allowing you to truly hear the speakers for the first time! Did you happen to dim the lights, or have a girl in the room with you. All audiophiles know these factors weigh heavily on the sonic character of the equipment.
Why does my system sound better??
I unplugged my stereo to change back to my old speakers. Old speakers sounded better than I remembered. I unplugged stereo again and put back original pair and they sounded better than I remembered. This is not a scientific. My question is by turning off ones stereo system do you degauss the power cables in some way. I have a PS 1000 power plant but it does not have the degauss software. I do leave my stereo on all the time. Mike