Audio Science Review = "The better the measurement, the better the sound" philosophy

@crymeanaudioriver 

if you didn't have only 9 posts, all in this topic, all effectively band-handed attacks on ASR, then I may take your post seriously. However, as you do have only 9 posts, all in this topic, I see no need to take you seriously. That would create an account, solely for the purpose of attacking ASR is definitely a point of interest. Education is important if you want to understand certain topics.

Yea, your right! 9 posts in 2 1/2 years.

You have what 72 posts in 1 week?

Silence is NOT a weakness, now matter how you want to spin it.

I am educated my friend, unlike you, I dont need to flaunt it.

Your still making my point however.

Someone stumbling onto this thread might feel like this:

All the best,
Nonoise

@henry99  Requoting you:

There has been NO ONE who says that measurements, ASR measurements or any measurements are useless!

Most seem to be like my (and Henry's) view. They aid in the evaluation of equipment, but I do not rely on them alone.

What has been the issue from the 1st page (of this forum) is the CULTURE of ASR!

And that to that, you keep reiterating their point again and again, ad nauseam.

For a man who flaunts his education, I would think you’d get it by now. (@crymeanaudioriver).  

@crymeanaudioriver - 

Please state for us what other names you've used on Audiogon. 

Tammy-

This guy is like a tick that burrows into Audiogon until he causes enough irritation to get booted out... Then comes back under another name and starts the process all over again. 

@fair

Thus, while testing on 2 ohm has its merit, it appears from the discussion that testing on non-purely-resistive loads is of more interest to people with practical experience in designing and repairing amps.

 

It is not in my review charter to help either camp in that.  That aside, I did build an emulator of a 2-way speaker per stereophile.  And used it for a bit of testing.  It didn't reveal anything useful so I retired it.

I have used real headphones for headphone amps.  That too was a useless exercise as the back EMF combined with the impedance of the amp produced completely erroneous and misleading THD measurements. Similar situation exists with testing amplifiers with speakers.

Even if something useful popped out, who is to say that speaker is representative of any other?  It may be a corner case, an easy case, or a difficult case. Who knows.

I do vary the resistive load to test for load sensitivity and report on that (usually a problem with low-end class D amps although some high-end ones suffer the same).

Finally, keep in mind that any speaker or emulated load of one would have to be at very low power.  There, distortion may not be material at all (swamped by noise).  This is why JA at stereophile only uses is load emulation for frequency response test.

Yes, there is a $15,000+ load cube that provides a couple of reactive loads (NOT representing any real speaker).  Audio critic had one but I think it blew up on them and they no longer used it.  I would spend the money if I thought it would add value but it simply doesn't.

Making sure this point is understood: there is a very high bar for adding more tests to the suite that I run.  Every test suggestion must come with strong justification which I have not seen in any of your posts.  Folks on ASR routinely make such suggestions.  You want a new test?  Come back with real data that shows usefulness.  "Would be nice" isn't going to work.  A lot of things would be nice but not when it clutters existing measurements and take time and resources form testing other products.