Indentical measurments = Identical performance?


I’ve been doing A LOT of thinking lately. In particular, about the importance of audio measurments for source components like DACs and CD players.

 

Let us first assume that we have 2 identical DACs or 2 identical CD players. You wouldn’t dare suggest that the same models sound inherently different, now would you? Well we can prove that the output of each device in this scenario is identical by doing a null test. We capature the output of the DACs and CD players and learn that their waveforms (let’s say a 30 second clip) are identical. The only time we might see a difference is in an engineering/manufacturing hiccup...and that is RARE considering we have globalization in the modern world today followed by quality control standards that are not necessarily difficult to get right.

 

And so, if put to practice, any 2 digital audio components that have similar enough measurements should sound identical. For example, a DAC with a SINAD or SNR or 120 dB vs one with a SINAD or SNR of 123. Tiny differences in linarity and frequency response above 20 KHz are not audible to us humans anyway.

Because most of our listening dare not go up to 110 dB, which is the threshold of discomfort. You could only listen for up to about 30 minutes at this level without risking hearing loss! For this reason, the ideal listening level is below that!

 

Should we forget about what companies try to sell us as high-end and focus purely on measurements with respect to accurately reproducing digital audio?

 

Here’s what’s really funny. The Chord DAVE performed worse with respect to measurments than the Chord Hugo TT2! Just see audio science review.

 

Lastly, I consider ASR the best objective website on the internet, bar none. Because if Amir really had a business relationship with any of these audio companies, their flagship or most expensive products would always perform at the very top; we see that is not the case and measured performance is all over the place!

 

Looking forward to hearing from you guys. Let’s not turn this discussion into a flame war. If you disagree with what I’ve written, just tell me why. I will investigate.

 

 

jackhifiguy

Just about any decent amp measures better than almost any tube amp of almost any price in most all of the typical parameters. Look at the square wave reproduction for one good example. Does that mean the solid state amps sound better / more like live music? We all know better. 
 

That said, I’m not sure John Atkinson of Stereophile does as rarely has an overall good thing to say about tube equipment & if you believe him & his “bias”, Benchmark products should sound better than anything else at any price as they supposedly test that way. 

Can you measure willingness or enthusiasm?  Are you in the mood for music and it sounds better?  Are you in the wrong frame of mind and it just doesn't gain your interest?  Can you measure that? 

I have mulled over this very argument for over 50 years and Once again I will use a speaker as an example or a comparison as to why things that are unmeasurable or even hearable by the human ear can change the overall makeup of a sound. Just in case you noticed I already explained the whole story already. It is a matter of what one minute aspect that can't be heard affects the overall.
We should all know that the different materials used in making a speaker cone act differently at different frequencies and power levels. Also if a speaker is playing only one frequency say well within its primary intended range, it has one sound but if another frequency that might be outside of its normal range is present the first primary note reacts differently. You may not even hear the second out-of-range note, but it changes the stiffness or flexure of the cone which in turn modifies how the primary note comes out. Any portion of what makes a sound output, be it an amp, a speaker, a transistor, the room treatments, or whatever, all make up the combined sound and thus its perceived sound. We may not be able to receive a particular sound or tone, but we can recognize the effort that such a sound causes on the rest of what we do hear. A different way of putting it might be, A Note that is far beyond the human hearing range affects the overall quality of frequencies/sound which we do hear.

Who listens to asr? Measurements don’t tell you how it sounds. What is the sq difference of a dac with .005 distortion vs .0003? Good luck. Stereophile is the worst on producing bad measurements and reviewers love the sound. I never look at measurements of a dac before purchasing, I use my ears

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