M

markw

Audioholic Overlord
That's a little too extreme for me. I am going to agree to disagree.
Fair enough. If it's inaudible, which it would be, then who cares and, if it's a typo, who cares anyway.

But, for some little kid to go screaming like some schoolboy who just saw little Suzi's underpants is a bit much. :rolleyes:
 
AcuDefTechGuy

AcuDefTechGuy

Audioholic Jedi
Fair enough. If it's inaudible, which it would be, then who cares and, if it's a typo, who cares anyway.

But, for some little kid to go screaming like some schoolboy who just saw little Suzi's underpants is a bit much. :rolleyes:
I think we agree on the part that it is probably inaudible.

But some of us like to be more objective when comparing amps/AVR.

My thinking is that better components should measure better than cheaper components.

I probably can't even tell the difference between a $500 AVR and a $5,000 AVR in sound quality.

But I expect a $5,000 AVR to measure better than a $500 AVR, as an example.

I understand why some people don't see any relevance in this.

But if I have money to waste, and I buy a more expensive component, I just expect the component to measure better objectively.

It is like how some of us hate pure subjective so-called "reviews". We want something more objective.

There is no harm done either way.
 
AcuDefTechGuy

AcuDefTechGuy

Audioholic Jedi
That wouldn't work for you. You depend on those numbers to tell you what you're hearing.
No, I just think numbers make this hobby more interesting. It is more fun to debate when you have objective data.

Otherwise, we are just arguing, which is no fun.

But debates are more fun.

DenPureSound and I are debating on which speakers he should buy next - PSB Synchrony One or KEF R900 or Philharmonic 3 or something else.

And we use numbers (measurements) to debate, not "I like this better than that based on my memory".
 
P

PENG

Audioholic Slumlord
No, I just think numbers make this hobby more interesting. It is more fun to debate when you have objective data.

Otherwise, we are just arguing, which is no fun.

But debates are more fun.

DenPureSound and I are debating on which speakers he should buy next - PSB Synchrony One or KEF R900 or Philharmonic 3 or something else.

And we use numbers (measurements) to debate, not "I like this better than that based on my memory".
You could have been a good research scientist/engineer. What a waste!!:D Like you said there is nothing wrong either way. Some people never question what they hear or see, it seems like many of us do, I for sure and it seems like you too. If Mark think we need the numbers to tell us what we hear, so be it.. He seems to agree to agree to disagree and we all seem to enjoy debating so far.:D
 
cpp

cpp

Audioholic Ninja
If people measured everything they purchased it would take years to own well just about anything, from jeans, glasses, car's, medicine to building materials including wife's :eek:


If ya can't hear it, forget about it, if ya got the cash buy it who cars what people think, but numbers are interesting to look at IF they are in fact correct, thereby each piece of equipment is measured exactly the same way and under the same conditions. IF not the measurements are subjective at best when doing a comparison.
 
P

PENG

Audioholic Slumlord
If people measured everything they purchased it would take years to own well just about anything, from jeans, glasses, car's, medicine to building materials including wife's :eek:
Agree, not everything for sure.

If ya can't hear it, forget about it, if ya got the cash buy it who cars what people think, but numbers are interesting to look at IF they are in fact correct, thereby each piece of equipment is measured exactly the same way and under the same conditions. IF not the measurements are subjective at best when doing a comparison.
Agree again, why even spend the money if you can't hear it? Measurements on the other hand help (to a point) in sorting out facts from hearsays, myths, BS etc. Can't believe I am so agreeable..
 
3db

3db

Audioholic Slumlord
Like I mentioned earlier, I would be very surprised if there wasn't a typo in the measurements. I don't think a company like NAD would scrimp on the basic foundations of building a clean amplifier, audible or not.
 
DenPureSound

DenPureSound

Senior Audioholic
No, I just think numbers make this hobby more interesting. It is more fun to debate when you have objective data.

Otherwise, we are just arguing, which is no fun.

But debates are more fun.

DenPureSound and I are debating on which speakers he should buy next - PSB Synchrony One or KEF R900 or Philharmonic 3 or something else.

And we use numbers (measurements) to debate, not "I like this better than that based on my memory".
Interesting for sure to say the least.. the Devil is in the Avatar!! :)

Thanks go out to Peng for working with me on the Emotiva XPA-5 Amp, as I have never been happier for a few hundred dollars, but I will let EMO stay in the Pre/Pro/Amp business, but to me not the speaker business!
 
GranteedEV

GranteedEV

Audioholic Ninja
Well let's not bother to measure another AVR, amp, pre- pro ever again since we can't hear the difference.

Come to think of it, let's not bother to measure anything since all the measurements are inaudible.
..or let's measure actually useful stuff, like power cube 2ohmx60deg, higher order distortion since, after all, they are audible.

What use are measurements for the sake of measurements if they're not useful measurements?

I want measurements - absolutely - but ones that have relevance to me, not just ones that make me feel good "hoohoohoo my SNR is -125 not -112" :rolleyes:

Sometimes the best electronics measure bad in the irrelevant specs that the magazines push down our throats but excel in the measurements that matter.
 
AcuDefTechGuy

AcuDefTechGuy

Audioholic Jedi
..or let's measure actually useful stuff, like power cube 2ohmx60deg, higher order distortion since, after all, they are audible.

What use are measurements for the sake of measurements if they're not useful measurements?

I want measurements - absolutely - but ones that have relevance to me, not just ones that make me feel good "hoohoohoo my SNR is -125 not -112" :rolleyes:

Sometimes the best electronics measure bad in the irrelevant specs that the magazines push down our throats but excel in the measurements that matter.
Audioholic measures crosstalk, so I assume it's not a waste of time. :D

The Audio Critic measured crosstalk every time they tested pre amps and amps, so I assume it wasn't a waste of time.

IMO the "best" are the best because they measure better than the rest.

How can something be the best if only some of the measurements are better?

It's OK if you don't care for THD, SNR, & Crosstalk. It would be great if everyone measures power cubes like The Audio Critic did.

It's not a debate about audible or inaudible measurements.

High quality components need no excuses. :D
 
M

markw

Audioholic Overlord
They also compare the AM receiver measurements with all other rceivers as well? Now THAT'S a biggie and I'm sure makes or breaks a lot of sales! :D

Enjoy that Kool-Aid.
 
AcuDefTechGuy

AcuDefTechGuy

Audioholic Jedi
They also compare the AM receiver measurements with all other rceivers as well? Now THAT'S a biggie and I'm sure makes or breaks a lot of sales! :D

Enjoy that Kool-Aid.
I hate Kool-Aid, man. I prefer Coke or Pepsi, which both have crosstalk < -90dB, SNR > 110dB, and THD < 0.001%. :eek::D
 
GranteedEV

GranteedEV

Audioholic Ninja
How can something be the best if only some of the measurements are better?

It's not a debate about audible or inaudible measurements.

High quality components need no excuses. :D
Okay, if all these high quality components measure great, show me the square waves, the preamp voltage, crossover distortion etc?

It seems to me that magazines pick some arbritrary measurements and decide those are the ones that show a good product. But if other stuff (arguably more audible) DOES measure bad you don't see it at all.

So are they high quality components with no excuses, or great "magazine measuring" components with stuff to hide regardless?????

What if the THD is 0.01% but it's rising at lower drive levels and 5th and higher order?

Those reading the magazine just see 0.01% and think "great measurement" but actually it's audible and offensive distortion at those low drive levels.

What if the THD is 1% but it's 2nd and 3rd order and doesn't rise as you go down in drive level?

Those reading the magazine just see 1% and think "bad measurement" but actually it's inaudible and inoffensive.

So which is better measuring? Which is higher quality?
 
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P

PENG

Audioholic Slumlord
This is getting silly. Engineered products required measurements to confirm they meet the design goals. It is not up to some of us users who think they know enough to decide what is useful or not. I don't have the means to audition multiple amps, media players, speakers, TV etc in my own home before deciding on which ones to buy. So yes I have to rely heavily on specs and lab measurements, as many as possible. Again, just because someone here say something is not useful it doesn't mean it isn't. It only means people form their own opinions, and are entitled to them as I am to mine.
 
P

PENG

Audioholic Slumlord
..or let's measure actually useful stuff, like power cube 2ohmx60deg, higher order distortion since, after all, they are audible.

What use are measurements for the sake of measurements if they're not useful measurements?

I want measurements - absolutely - but ones that have relevance to me, not just ones that make me feel good "hoohoohoo my SNR is -125 not -112" :rolleyes:

Sometimes the best electronics measure bad in the irrelevant specs that the magazines push down our throats but excel in the measurements that matter.
How do you know for sure they excel in the measurements that matter if those measurements don't exist? It may also be that those measurements that matter are also easily and affordably achievable today but those you consider useless are also easy but costly to achieved.
 
GranteedEV

GranteedEV

Audioholic Ninja
This is getting silly. Engineered products required measurements to confirm they meet the design goals. It is not up to some of us users who think they know enough to decide what is useful or not.
But it's up to us to decide that x product is flawed because it measures poorly in y measurement? How do we know that y measurement was ever part of the original design goal?

So yes I have to rely heavily on specs and lab measurements, as many as possible.
As do I. But if we buy solely based on the measurements specifically that the magazines give us, you have to accept the great possibility that they're measuring the wrong thing altogether and you could still end up with a mediocre or underperforming product. Hopefully you won't though. At the end of the day you have to realize that it's silly to compare magazine numbers like this because these are NOT the things that the designers were probably measuring during product design.

Again, just because someone here say something is not useful it doesn't mean it isn't.
...regardless of what different individuals think - just because the magazine measures it, doesn't mean it is useful.

It only means people form their own opinions, and are entitled to them as I am to mine.
Of course you're entitled to your own opinion. But unless it's factually backed up by bias-controlled/blind listening tests it remains your own opinion and nothing more and nothing less and the same applies to myself and everyone else.

It's easy to get caught up in "measurements we get" but that doesn't mean "measurements we get" equates to "measurements that correlate to what they want us to hear (or NOT hear)"

How do you know for sure they excel in the measurements that matter if those measurements don't exist?
I don't and I never said they do. But I don't pay much mind to the measurements that most of the magazines do measure. I do like Gene's FFT distortion spectra @ 1w VS @ full power

All I know is, there's specs for the sake of specsmanship and specs for the sake of high quality. They're not necessarily related.

It may also be that those measurements that matter are also easily and affordably achievable today but those you consider useless are also easy but costly to achieved.
It may be. And it may very well NOT be. All I can say is simply there's more to the picture than what the magazine shows and to that end I wouldn't discount any product based on a poor measurement that shows zero correlation to audibility, just like I wouldn't parade a product that measures great in almost all the important measurements but falls short in even one.

For example the KEF Q900. You know i'm always on about on and off axis frequency response of speakers and how they're the first important thing I look at. But when I see the metal cone breakup in another measurement, it tells me that there's some serious cost cutting involved and they're not really a speaker i want because of it.

Just because a few measurements are good doesn't indicate a good product, an just because a few measurements are poor doesn't indicate a poor product. We have to correlate things with their audibility else we're just playing the aformentioned mental masturbation game.
 
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P

PENG

Audioholic Slumlord
Okay, if all these high quality components measure great, show me the square waves, the preamp voltage, crossover distortion etc?

It seems to me that magazines pick some arbritrary measurements and decide those are the ones that show a good product. But if other stuff (arguably more audible) DOES measure bad you don't see it at all.

So are they high quality components with no excuses, or great "magazine measuring" components with stuff to hide regardless?????

What if the THD is 0.01% but it's rising at lower drive levels and 5th and higher order?

Those reading the magazine just see 0.01% and think "great measurement" but actually it's audible and offensive distortion at those low drive levels.

What if the THD is 1% but it's 2nd and 3rd order and doesn't rise as you go down in drive level?

Those reading the magazine just see 1% and think "bad measurement" but actually it's inaudible and inoffensive.

So which is better measuring? Which is higher quality?
That's why we need more, not less. What if they measured the things you mentioned but not THD and now you get the drive level but the preamp would have 10% distortion at the higher level? I am agreeing with you there are important measurements to be done but I strongly disagree to the claims that what are commonly done in review labs are useless. They are all useful in helping buyers to choose, if done properly.
 
P

PENG

Audioholic Slumlord
But it's up to us to decide that x product is flawed because it measures poorly in y measurement? How do we know that y measurement was ever part of the original design goal?



As do I. But if we buy solely based on the measurements specifically that the magazines give us, you have to accept the great possibility that they're measuring the wrong thing altogether and you could still end up with a mediocre or underperforming product. Hopefully you won't though. At the end of the day you have to realize that it's silly to compare magazine numbers like this because these are NOT the things that the designers were probably measuring during product design.



...regardless of what different individuals think - just because the magazine measures it, doesn't mean it is useful.



Of course you're entitled to your own opinion. But unless it's factually backed up by bias-controlled/blind listening tests it remains your own opinion and nothing more and nothing less and the same applies to myself and everyone else.

It's easy to get caught up in "measurements we get" but that doesn't mean "measurements we get" equates to "measurements that correlate to what they want us to hear (or NOT hear)"
I actually agree to every you are saying. In fact you are almost making the same points and each point you made apply directly to you yourself as well, not just to me. Glad to see you kind of stated that yourself.

By the way I don't buy based on just some HTM measurements and I posted in the past more than once I don't even have much faith in theirs. I simply said I rely heavily on specs and measurements.
 
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3db

3db

Audioholic Slumlord
I want all magazines tosent in a square wave and measure the amp's output at low mid and high volume. A square wave will tell tons about an amp's behaviour.

Hey AcuDefTechGuy

This is the third time I mention this in this thread. Those published noise specs are a misprint. If you look at the receiver industry as a whole and NAD's past performance numbers, do you honestly think NAD would risk putting anything out there that measures this poorly? Think about it. ;)
 

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