AUDIO SCIENCE REVIEW and $50 to spend.........

@prof thank you for posting the video. I know it’s not gonna change anybody’s mind who hates ASR but it might leave a seed of doubt that may grow into a normal believer in science. The funniest thing is is that we wouldn’t have any of this equipment if it wasn’t for scientists and now a scientist like ASR is trying to warn us that we’re going off the rails and nobody believes him. All that ASR is trying to do is give you scientific fact to apply to your decision when buying audio equipment. Without guys like ASR the only music we would get the listen to would be live music. We owe all this technology and quality of sound reproduction to guys like ASR. All you guys can do is kick him in the shins because you don’t like the fact that Deep down deep inside you you do wonder if that power cord really makes a difference…..

@digitalviper 

dude you need to stay away from ASR.

The fact of the matter is, Amir may be able to measure gear. And sure, that gear measures really well.

But does he ever ask why? - nope. 

ASR is a terrible source of info. All I need now is to un-become an audiophile.

@amir_asr 

You do not know everything about audio. You might believe you have it all figured out. But I'm sure folks on site could run circles around you in terms of knowledge and experience. Again, I find you rude and you always seem to get yourself in to trouble on forums. 

Some have already said that. Actually, I found so many sources online where people are mocking you.

amir_asr

I have noticed there has not been any new ASR videos on the site for several months. What’s the deal? Banana rotten?

ozzy

@ozzy

I have noticed there has not been any new ASR videos on the site for several months. What’s the deal? Banana rotten?

More like rotten software.  I use OBS for my videos. I recorded a near 1 hour tutorial on how to read DAC measurements.  Hit finish and realize it had only recorded 10 seconds of the video!  I check everything, record a sample and all works.  So I repeat my long tutorial again.  Hit finish and the same darn result!  Just a few seconds recorded. :( :( :(

I go and get Camtasia to try.  What awful product.  Terrible quality, no control over settings, and just unusable.  Not sure how this product has gotten so popular.  Anyway, by then it was 2 in the morning so I stopped in disgust.

Above was about two months ago.  Have not had time to go back and troubleshoot what happened all of a sudden with OBS.  Do have a few topics to cover though so will definitely post new ones, one way or the other.

@andy2

Hi Amir,

How would you propose we measure the LessLoss BlackGround 10x Power Base :-)?

Five ways:

1. Measure the sound waves coming out of different audio products. Contrary to their marketing attempts, we don’t listen to ground, power, etc. We listen to what comes out of our audio gear. If there is an effect against not using the tweak, it better show up somewhere across suite of measurements. Sometimes these products actually make the output worse so don’t assume that there is always no difference.

2. Perform a null test with music. Record the output of a DAC, amp, etc. twice. One with the thing in the loop and once without. Perform automatic analysis using Deltawave. If there is a difference, we can see if it is below threshold of noise. Otherwise, this ends the argument of "but how does it work with music."

3. Perform a blind test if we have to. I usually publish the files for #2 above and advocates of the device can listen and provide their outcomes using a proper ABX tool.

4. Perform engineering analysis of whether the claims made make sense and could possibly change circuit performance. For example, if I sold you red socks that would warm up the sound of your DAC, we both know that is not possible. We can perform the same analysis but now with engineering knowledge of design of audio gear.

5. Ask the company to back their claims with measurements, or controlled listening tests if they disagree with above. For example, the page above has this at the end: "The reason more and more BlackGrounds (and Blackbodies) are effective is that with every additional unit we are lowering and lowering this impedance path, so the results in terms of sonic purity are better and better as statistically less and less intermodulation occurs."

Well, we can easily measure intermodulation. We can also measure impedance. Let’s have them show the difference before and after on these measurement centric claims. We don’t need 100 different analogies as they have peppered in that page. Give the data to back that such effects exist. And then proof of sonic purity.