Double blind test- over a month- could this be a reliable test for any equipment?

@millercarbon

Just no. Have you ever intensely focused for 10 minutes straight? Because that’s what you are doing with double-blind listening, you are trying your best to be hyper aware of any sonic differences, hence why you need to take breaks.

There is nothing flawed with this method. That’s a cop-out for people who want it to be true that their $2000 speaker wire actually made a difference.  
 
The test needs to be double-blind, quick-switching (~10sec or less), and level matched. Now, being double-blind and quick-switching pretty much means the test needs to be automated.

@alexatpos

Our perfect auditory recall period is about 10sec. If there is a minute difference you didn’t pick up immediately, it’s impossible for you to notice a change the next day. If I changed the volume of your setup by 2dB, I doubt a single person on this forum could notice it if they didn’t listen to the change for a full day, whereas if immediatly listening, the change is easily audible.

You noticing differences is simply noticing things that already existed, but were simply not overtly audible. I could play you a song 5 times, and you would likely hear some change if I told you there was one.

@clearthink 
 
Tell that to Toole.