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Yet another DBT post
Michael Scarpitti wrote:
Stewart Pinkerton wrote in message news:vOr_b.387604$na.593417@attbi_s04... purchase equipment only from companies that use DBTs in their design process? No, because all cables sound the same, and all competent amps sound the same. Tautological: If amps sound different, at least one is not 'competent'. Given that no amp is perfect, there are NECESSARILY differences, as no amp can be perfectly competent. Now you introduce the concept of "perfect" in audio amps. How would you define perfect? Among engineers, there is a popular saying that "good enough is perfect". If you take that position, then there are clearly amps that are perfect. On the other hand, if you define a perfect amp as one with no measureable errors, then no amp is perfect. But an amp does not have to be perfect to be competent. To me, a competent amp is one whose errors are below thresholds of audibility. I have heard obvious differences between power amps. It is not even remotely possible for me to be mistaken... Is it remotely possible that some of these amps are incompetent? Have you ever heard amps that sound the same, under level-matched, bias-controlled conditions? Occam's principle is that the simplest explanation is the likeliest explanation: People who claim that they can hear differences in sound among amps and cables sound different because they are hearing differences that are real... Given that so many people detect positive differences listening to the same amp or the same cable under sighted conditions, your explanation is too simple, and too unlikely. THTAT is a simpler explanation than anything else... That is a possible explanation, but when it comes to cables, an improbable one. Look at it a different way. Measurements show that two cables produce the same response at the speaker terminals. People report hearing differences sighted. Occam's razor will say that those people are affected by sighted bias. That is the most likely explanation. And the simplest one. |
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