- Feb 23, 2002
....yes I try to do crude blind tests to insure safety from my own prejudices, picking music at random.....
I also think it's a good idea to do this when possible. If one is unable to confidently establish a difference between components or accessories with a "crude blind test" with the help of an assistant or two, there's really no need to go on to an elaborate double blind test.
3. My sonic memory sucks!
Jeremy, I think in your case the reason is #3 not because your sonic memory sucks but because everybody's sonic memory sucks. I read in one S&V article that in order to do a fair comparison between two components the switching time between the two should be of the order of a fraction of a second. Thats how long it takes to forget the sonic signature of a particular piece of equipment. With one piece of preouts in your case its hard to fairly compare two amps and find a difference.
Thats my opinion.
Otherwise, all we can say is that we think we may have preferred one unit to the previous one.
I respectfully disagree. Since preference is a subjective property, "thinking" that you preferred something means that in fact, you did prefer it. What is subject to debate is why you preferred it.
As the risk of opening up another DBT debate, I will (for the umpteenth time) point out that unlike determining the efficacies of drugs, establishing a preference for a piece of audio equipment often involves extended listening. That is why, in my opinion, double blind A/B testing is not necessarily the end-all and be-all when it comes to choosing audio equipment.