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DAC audible differences are finally proven with ABX?

No, people here have stated it openly: they would loan out their equipment, so Josh must be willing to do the same. Otherwise there is something wrong with him.
Depends on your definition of "wrong." Something is wrong in our eyes when no logical explanation is given. Josh knows full well why we would want to examine and measure the box. So prima facia evidence is that he is afraid of what we might find -- this is certainly wrong. He is either in it as a search for truth in audibility of DACs or he isn't. Putting barriers in front of us so that we can't get to this point, even when we offered to remove said barriers with $10K promise of replacement, makes him disingenuous in any unbiased eye.

But put the box aside as we are getting it now. What is the excuse for not giving us the files he has captured? He doesn't "loan out" files either?
 
What is the excuse for not giving us the files he has captured? He doesn't "loan out" files either?
Doubts they were recorded and matched properly, I am quite sure. Once they are a public affair, it is easy to check.
 
I know it is hard for some of you people to accept, but not everyone is interested in the ideas and methods of this site.
That is a very odd comment to make. Those people would say exactly that about Josh's testing. Many would disown you as a friend if you insisted in any kind of controlled testing! I know from actual experience. They are that diehard about not wanting to do or even read such testing.

The main audience for such a test is ASR membership and visitors and not AS unless you tell me AS folks don't drink water on subjective listening unless it is in controlled environment.
 
As Amir is so enamored of web numbers, it's pretty clear from overall web stats that most audiophiles AREN'T at this site.
What overall web stats? The web stats show the opposite. Here is the same data for WBF which I co-founded:

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It is clear you all are fighting for breadcrumbs relative to our level of reach.

To be fair, there are two forums which have formidable stats similar to ASR:
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It has been a while since i looked at this. Seems like stevehoffman is on somewhat a decline. Might be seasonal so need to check again in a few months.

Head-fi is exceptionally well run and is a media conglomerate. The fact that we are neck and neck with them with just me part time, shows you how strongly audiophiles value objective, science and engineering based fidelity assessment and education.
 
It doesn't necessarily mean people who go to those other sites are fools or ignorant, or are afraid of what some consider "THE TRUTH"- it just means they have a different way of approaching the hobby.
It doesn't at all. They are audiophiles like us, searching for best gear that brings them pleasure.

The fervent ones who are exposed to what we do and tests like Josh's, and scuff at both, could be considered ignorant when it comes to knowing the truth about audio although I tend to not want to use that term.
 
Thanks for everything you have done!

Now that this has happened, I can disclose that I will be buying the box from @NTTY for $1,200. I just couldn't let him spend so much money on this by himself.
Nice to hear. I'll donate to ASR also for this.
 
Thanks for everything you have done!

Now that this has happened, I can disclose that I will be buying the box from @NTTY for $1,200. I just couldn't let him spend so much money on this by himself.
Thanks for that @amirm, and thanks for all the very time consuming measurements that I see you plan on running. The good thing is that now the box can stay with you for as much as you want, and that will facilitate next steps.

And of course thanks to @fivepast8 for his contribution (I confirm receipt of your payment BTW ;) ).
 
Call it blissfully unaware ;)
It perfectly fits the dictionary definition “A false belief or opinion” of the word ‘delusion’.

Which I find somewhat humorous given a certain person’s objections to that specific word.
 
It perfectly fits the dictionary definition “A false belief or opinion” of the word ‘delusion’.

Which I find somewhat humorous given a certain person’s objections to that specific word.
The objection was against “ignorant”. Not the same thing.
 
Nice to hear. I'll donate to ASR also for this.
If I can contribute to the total cost of the effort, know I didn't "recant" (as Josh lyingly claimed, I just lost interest after it wasn't taken up and the conversations descended into stuff I stop reading. Josh missed my post but then showed interest when someone else told him, too late). I'd would have never bought the damn box from him, I have zero use for it, I just wanted to fund a peer review, which I am still perfectly willing to do.
Like I have stated a zillion times, personally I have below zero interest in immersing myself in these ABX tests ever again. There's too much stuff that sounds too good to justify that painful exercise these days, imo. I live in audio nirvana as is.
 
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Thanks for that @amirm, and thanks for all the very time consuming measurements that I see you plan on running. The good thing is that now the box can stay with you for as much as you want, and that will facilitate next steps.
Thanks for your facilitation also!

Honestly, and perhaps I said this the wrong way before: Let's assume Josh heard what he heard and accurately reported it: if there is a systemic issue with the ABX comparator such that the channels supplied by both A/B are distinguishable then you need to know that and proceed with creation of a good ABX comparator. and even if the ABX comparator is good, its hard to obtain, and so creation of a good ABX comparator that is actually available is needed, yet this could be tested against either a known good or known bad device.

Alternatively if its not the comparator but (as I've given a concrete for example) the input impedance of the comparator causes a differential high frequency rolloff/distortion in the output of certain DACs. Indeed if Matrix discovered this, that might explain why their new DAC has an output op-amp (a buffer!). That is speculation, but it is a concrete possibility.

That's why explaining this specific issue has more important consequences: if it discovers a systemic issue in the comparator **or** results in modifications to the testing regimen itself
 
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Thanks for your facilitation also!

Honestly, and perhaps I said this the wrong way before: Let's assume Josh heard what he heard and accurately reported it: if there is a systemic issue with the ABX comparator such that the channels supplied by both A/B are distinguishable then you need to know that and proceed with creation of a good ABX comparator. and even if the ABX comparator is good, its hard to obtain, and so creation of a good ABX comparator that is actually available is needed, yet this could be tested against either a known good or known bad device.

Why do so many still consider it remotely plausible someone can hit a >95% accuracy in identifying competently designed DACs in 2026, and seek the magic equipment? I mean, probability wise, it's more likely that Santa Claus slides down your chimney come Xmas, and that the Easter Bunny hops around your backyard delivering choco eggs. :-D
Note that clearly Josh has planted the seed of hatred and such in the subjectivist camp already, so whatever comes out of the ASR peer review (which is very likely to call bull on the "test" results) will be "Oh of course we knew they'd say that, measurement cult simpletons!". The job is already done. All of this ASR due diligence is wasted, imo. This was exactly what was supposed to happen.
PS: I redirected some of the funds... I am now a dedicated supporter. I never "recanted", lying @Josh83 . I just redirected when I saw you were dishonest. Them $ will are being spent in better ways.
 
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This thread started off well. (I agree Amir and others entered the conversation in good faith). But as it progressed a lot of the commentary moved from critical inquiry of Josh’s results to include plenty of criticisms of Josh’s behaviour and character. No, that doesn’t mean the going-off-the-rails aspect is all the fault of ASR members. But it still invites scrutiny of what some of the ASR reaction looks like to audiophiles viewing a thread like this.

ASR has, among some audiophiles - including those who are not opposed to the type of information this forum can provide - an unfortunate reputation for “group think” “pile ons” and poor treatment of those not taking the ASR approach every jot and tittle. I’ve spent plenty of my own time on other forums explaining why much of these characterizations are undeserved. But every forum is made of people, and sometimes people are still gonna people…even on ASR :-)

So in this thread we’ve seen plenty of criticisms of Josh’s character and behaviour- including ascribe malign motivations. But if this reaction itself is placed under scrutiny, there’s a sense of “You must have some agenda in questioning our motivations. Don’t drag this into the mud. We are just trying to rationally scrutinize a particular claim about audio gear!”

Firedog has been arguing that there is some self blindness to the behaviour here. He may be wrong. (And I may be wrong in some of my criticisms)…. But some people here seem to be intent on trying to prove his point.

Posts like these end up supporting some of firedog’s criticisms….

We've definitely had better trolls than this one.

Well one thing is certain…YOU are not interested in the scientific discovery of what matters about sound quality. Why? Tell us why!

I suggest you overtly speak for yourself, because that is how you will be interpreted no matter how hard you try to externalize or generalize what you say.

1786381465110.jpeg

“Troll” has become the unfortunate lazy insult in Internet discourse. It’s often become a substitute for “Someone is strongly critiquing my position, and since my position is the reasonable one, this person’s critique must not be sincere, so I’m going to call them a troll.

It’s a form of the common: “I attribute my position to reason; my opponent’s position to psychology.” (Often attributing some base motivation).

An Internet Troll denotes someone who is insincere about what they are posting, the only motivation being to enjoy making people upset or angry.

I see no reason to believe firedog is not just as sincere about his position here as anyone else. Just suggesting he is a troll is lazy and unnecessary discourse.

(That also goes for other lazy tropes like accusations of “ Sealioning” - a conveniently slippery term. If you argue a point in a disobliging manner you can be called a “Troll.” If you debate in a civil manner - “Sealioning!!”).

Ironically, if you want an example of what looks more like traditional trolling, you would come closer with posts like THIS;

1786397035942.png


This type of meme is drawn right from the Trollisphere of toxic social media discourse (eg “Drinking the tears of The Libs…)

It says: “Join me in enjoying the upset emotions of the person(s) we are skewering.”

That is drawing closer to the Troll mindset than anything Firedog has posted. And it “liked” by our founder Amir and others.

I mean it’s fine if you want to post stuff like that for giggles. It’s not the end of civilization.
Some mocking can be cathartic.

But it’s at the cost of making some of Firedog’s (and others) criticisms look justified. We can see poor behaviours in the people we disagree with but it gets a pass, slips by easily..even upvoted!…among the people we agree with.

It’s worth considering that these posts and others like them, and some of the emphasis on Josh’s character and motivations, amount to a mode of discourse that turns off audiophiles who may otherwise be open to what ASR has to offer.

(Begins clapping for fish…:-)
 
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If I can contribute to the total cost of the effort, know I didn't "recant" (as Josh lyingly claimed, I just lost interest after it wasn't taken up and the conversations descended into stuff I stop reading. Josh heard missed my post but showed interest when someone else told him, too late). I'd would have never bought the damn box from him, I have zero use for it, I just wanted to fund a peer review, which I am still perfectly willing to do.
Like I have stated a zillion times, personally I have below zero interest in immersing myself in these ABX tests ever again. There's too much stuff that sounds too good to justify that painful exercise these days, imo. I live in audio nirvana as is.
I did my share of blind tests in the past, and have very little interest as well of doing more. We will hopefully get an answer (and I am a bit curious how it will end), and a modest contribution to this rather expensive story felt like a good choice.
 
Alternatively if its not the comparator but (as I've given a concrete for example) the input impedance of the comparator causes a differential high frequency rolloff/distortion in the output of certain DACs. Indeed if Matrix discovered this, that might explain why their new DAC has an output op-amp (a buffer!). That is speculation, but it is a concrete possibility.
The input resistance of the comparator is (most likely) 20kohm with the volume control all the way down.
It will be lower when no or some attenuation is selected.
This does NOT influence the DAC in the sense that it will cause HF roll-off.
This is a very easy load.
What a passive attenuator of this resistance CAN do is cause a HF roll-off caused by the parasitic capacitance up to the output connectors (several tens of pF) and the connected interlink at the output (100-200pF) and the input capacitance of the connected amp.
This is true and the same for all connected DACs.

The only thing that could happen is that under different attenuation and a high capacitive output load the HF-roll-off frequency (6dB/oct) could differ a bit.
Hence my request to measure the FR at a few different attenuation levels and a 'common' load... among a bunch of other measurements that should be done if we want to rule out/characterize the box (well... mostly the attenuator).

When that enters the audible range there would also be a phase difference but a.f.a.i.k. human hearing does not rely on phase differences at very high frequencies but rather timing differences between both 'channels' (which would be the same).
 
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This thread started off well. (I agree Amir and others entered the conversation in good faith). But as it progressed a lot of the commentary moved from critical inquiry of Josh’s results to include plenty of criticisms of Josh’s behaviour and character. No, that doesn’t mean the going-off-the-rails aspect is all the fault of ASR members. But it still invites scrutiny of what some of the ASR reaction looks like to audiophiles viewing a thread like this.

ASR has, among some audiophiles - including those who are not opposed to the type of information this forum can provide - an unfortunate reputation for “group think” “pile ons” and poor treatment of those not taking the ASR approach every jot and tittle. I’ve spent plenty of my own time on other forums explaining why much of these characterizations are undeserved. But every forum is made of people, and sometimes people are still gonna people…even on ASR :-)

So in this thread we’ve seen plenty of criticisms of Josh’s character and behaviour- including ascribe malign motivations. But if this reaction itself is placed under scrutiny, there’s a sense of “You must have some agenda in questioning our motivations. Don’t drag this into the mud. We are just trying to rationally scrutinize a particular claim about audio gear!”

Firedog has been arguing that there is some self blindness to the behaviour here. He may be wrong. (And I may be wrong in some of my criticisms)…. But some people here seem to be intent on trying to prove his point.

Posts like these end up supporting some of firedog’s criticisms….





“Troll” has become the unfortunate lazy insult in Internet discourse. It’s often become a substitute for “Someone is strongly critiquing my position, and since my position is the reasonable one, this person’s critique must not be sincere, so I’m going to call them a troll.

It’s a form of the common: “I attribute my position to reason; my opponent’s position to psychology.” (Often attributing some base motivation).

An Internet Troll denotes someone who is insincere about what they are posting, the only motivation being to enjoy making people upset or angry.

I see no reason to believe firedog is not just as sincere about his position here as anyone else. Just suggesting he is a troll is lazy and unnecessary discourse.

(That also goes for other lazy tropes like accusations of “ Sealioning” - a conveniently slippery term. If you argue a point in a disobliging manner you can be called a “Troll.” If you debate in a civil manner - “Sealioning!!”).

Ironically, if you want an example of what looks more like traditional trolling, you would come closer with posts like THIS;

View attachment 550849

This type of meme is drawn right from the Trollisphere of toxic social media discourse (eg “Drinking the tears of The Libs…)

It says: “Join me in enjoying the upset emotions of the person(s) we are skewering.”

That is drawing closer to the Troll mindset than anything Firedog has posted.

I mean it’s fine if you want to post stuff like that for giggles. It’s not the end of civilization.
Some mocking can be cathartic.

But it’s at the cost of making some of Firedog’s (and others) criticisms look justified. We can see poor behaviours in the people we disagree with but it gets a pass, slips by easily..even upvoted!…among the people we agree with.

It’s worth considering that these posts and others like them, and some of the emphasis on Josh’s character and motivations, amount to a mode of discourse that turns off audiophiles who may otherwise be open to what ASR has to offer.

(Begins clapping for fish…:-)
64 pages! Let’s see if we can get this to 95.
 
But it’s at the cost of making some of Firedog’s (and others) criticisms look justified.
No. Just no. You are confused about who we are and our promise. We have never said we are saints. We are a professionally run forum and that requires certain amount of decorum. But no way do we turn the other cheek when comment after comment is made about us. To do so would be to agree to be bullied and reward the bully.

As for firedog, he was the top dog, pun intended, that started the antagonism there. I post about it way early in the thread:
I went to AS site to see if there is more detail there (there was not) but ran into this from @firedog:

"At the ASR thread, they are being polite because it's clear Josh is a serious guy and did a serious test. But they will look for any possible reason to say the test is flawed.

As expected, if you get the results they say are impossible, the test must be flawed. You will never win there, no matter what test you do and what the conditions are.

I bet if Josh had gotten their expected result, they'd trumpet his test as proof."
You see how he puts even our politeness in bad light? And how he misstated our intentions.

I have known him for many years. The man just does this. And doesn't deserve any of the wind you are trying to put in his sail.

It is my style to be very professional with people until they cross a line. Both Josh and Firedog have done so. Once there, I will still stay professional but will push back, and strongly so on unreasonable positions taken by individuals like this. I see no reason to be passive as again, that reward bad behavior.
 
Hence my request to measure the FR at a few different attenuation levels and a 'common' load... among a bunch of other measurements that should be done if we want to rule out/characterize the box (well... mostly the attenuator).
Yes impedance can have resistive, capacitive and inductive components, we use a number as a shorthand when its really a curve. That can also make it a PITA to measure and so point measurements are usually done.

Your request is reasonable. Impedance also includes the reactive components so it can get multivariate. All I'm saying is that some additional testing might explain the results. I gave an example of a conceivable mechanism but I haven't seen the actual output stage circuits of both DACs nor carefully reviewed the ABX comparator. If all were actually known it could be simulated and that would guide testing, but alas its only speculation.
 
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