Bluefin, our audio memory for detailed musical presentation is very short, same as memorising a phone number for 10-20s in order to call someone in our phonebook. Unless yours imediate recall memory is truly exceptional, after 3 mo from listening to a component you'll have just some vague impressions of how the music details were[ are you very sure that the cable you listen 3 mo ago has a slight tighter bass than the one you listed today? Would you be more inclined to detect a difference if you were listening to the same cables half a minute appart?] ...
Obvious,normal listening does not include switching cables like crazy, but we are not talking about normal listening but of some kind of test designed to pick up some differences...
5 minutes is too long! I'll listen to about 25-30s on one cable, than I'll switch to the other one. If the 2nd cdp will start playing 25s after the first, I'll be able to listen to the same slice of music presented through 2 cables, one after on other.
Tired and nervous? Nah, I'll do it when I'll be rested and relaxed. My happines in life is not linked at all with the test's results, I'll do it for fun [ some of my weekends are booring also...] If any audiogoners are around Barnwell, South Carolina, are all invited for a listen-beer on the house!
Cables not broken in? It may be a point. Many vendors do burned them on the cable cooker, someone can also buy used...
Bomarc,the level matching seems like a good point,I did't think about it. OK, maybe we'll not eliminate the placebo, just reduce it a little will be ok...
on other ideea for a test: same CDP, 2 different cables-ICs R/L to my Mg Head OTL tube head amp and than listen through the Sennheiser Hd600, each ear will listen to a different cable!...what do you think?[ does not seem very rigurous, but is very easy to do it!]
cheers.