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Audio Science Review = Rebuttal and Further Thoughts

@crymeanaudioriver @amir_asr You are sitting there worrying if this or that other useless tweak like a cable makes a sonic difference.

I don’t worry about my equipment unless it fails. I never worry about tweaks or cables. The last time I had to choose a cable was after I purchased my first DAC and transport in 2019.  I auditioned six and chose one, the Synergistic Research Atmosphere X Euphoria. Why would someone with as fulfilling a life as me worry about cables or tweaks and it is in YOUR mind that they are USELESS.

@prof "would it be safe to say you are not an electrical designer or electrical engineer? If so, under what authority do you make the following comment" - concerning creating a high end DAC out of a mediocre DAC.

Well, I have such a DAC, built by a manufacturer of equipment and cables for his and my use. It beat out a $9,000 COS Engineering D1v and $5,000 D2v by a longshot. It is comparable to an $23,000 Meridian Ultradac. Because I tried all the latter three in comparison I say this with some authority, the authority of a recording engineer (me), a manufacturer (friend) and many audiophiles who have heard the same and came to the same conclusion.

Another DAC with excellent design engineer and inferior execution is the Emotiva XDA-2. No new audio board but 7! audiophile quality regulators instead of the computer grade junk inside, similar high end power and filter caps, resistors, etc. to make this into a high end DAC on the very cheap ($400 new plus about the same in added parts).

@russ69 We must be neighbors. I frequented Woodland Hills Audio Center back in the 70s and 80s. I heard several of Arnie’s speakers including a the large Infinity speakers in a home.

fleschler
antigrunge2
1,412 posts
 

Come on children, all together now:’ We all live in a yellow submarine…’

grannyring's avatar
grannyring
6,484 posts
 

Interesting thread. Many, including myself, believe that blind testing and A/B testing in general is flawed and not a reliable means to test for differences, identification or preferences between gear. The reasons are many and posted on many other forums including ASR.

I feel one must live with a “change” in gear for a period of days and over this time will come to better understand how the sound/music has changed. Yes, I trust we humans can decide this for ourselves with time.

Removing a sense, sight, does not necessarily make for a more accurate or statistically significant result. I think these short A/B comparisons place additional stress on the ear/brain processing and completely blocks the potential for a useful outcome. My system NEVER sounds very good when I am under stress or anxiety. Never. I have found changing a cable for evaluation during these times is not wise.  

I am confident many greatly over emphasize the role of expectation bias and have fallen for the perceived benefit of blind testing. Much better to listen over days in your home with your eyes open and shut.

So many variables with blind and sighted A/B testing. Many we certainly don’t even understand in 2022. Give yourself time with the change and you can trust your senses in the end. Give yourself time to know how you engage with the music. How are your reacting to the change mentally, emotionally and even physically? More enjoyable? Less enjoyable? Listening longer or shorter periods of time? More or less relaxed and “into” the music?

 

 

 

antigrunge2
1,412 posts
 

One more thought: keep measuring the wrong thing and the earth stays flat

djones51
4,947 posts
 

Take a valium. Take hours, days, weeks, the requirement you have no idea what component was changed. Speakers wouldn't be practical but DACs or cables should be easy enough. I never passed a blind test on either of those. 

prof
3,474 posts
 

@djones51 

After reading Prof comments on Audiogon and MattHooper on ASR I would say they are the same person. Seems like a well rounded intelligent fellow who understands the value of measurements but not to the exclusion of what he enjoys. One can like vinyl but understand it doesn't measure as well as digital. You can like tube amps and know they can't measure better than a lot of SS amps. One can understand they are subject to human biases without assuming they are hallucinating, can understand that extraordinary claims that most tweaks advertise should provide extraordinary evidence. 

 

Hey!  Someone gets it, actually reading what I've written.  What a refreshing surprise!   Thanks djones51 !

 

 

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