No, the scientific method states that someone else can independently use the protocol and produce similar result or they can't and go on to debunking or making recommendations.
Entreq Coming for Testing/Measurements
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No, the scientific method states that someone else can independently use the protocol and produce similar result or they can't and go on to debunking or making recommendations.
Nice job Amir - as predicted, the device does nothing, and worse, the cables to it act as antennas picking up junk which is fed back into the components' grounds. I suspect any positive results people report are really due to star-grounding at one point - same as if they were to connect to a Shunyata Triton II - but with the same unwanted antenna-effect. This is why I practice star-grounding at the preamp with well shielded interconnects.
sorry Amir, but, your test doesn't make sense.
You are free to write your opinion and I to not read it, but the protocol you used, do not respect the real operating conditions on which the boxes are normally inserted.
There is not a complete chain which may change the transient ...etc.
Beside, a measurement like this may indicate a false result as well as, for example, it is wrong to say that 2 amplifiers sound the same due to the fact which both cover the frequency spectral from 20 to 20KHz.
For that reason some of Entreq's users here, have suggested you to run a preliminary test by listening whether the inclusion in your chain of the groundbox could make changes (positive or negative).
You are free to write your opinion and I to not read it, but the protocol you used, do not respect the real operating conditions on which the boxes are normally inserted.
There is not a complete chain which may change the transient ...etc.
Beside, a measurement like this may indicate a false result as well as, for example, it is wrong to say that 2 amplifiers sound the same due to the fact which both cover the frequency spectral from 20 to 20KHz.
For that reason some of Entreq's users here, have suggested you to run a preliminary test by listening whether the inclusion in your chain of the groundbox could make changes (positive or negative).
I guess if someone wants to buy something and spends enough money on it they can convince themself that a device does what the manufacturer claims.
Yup. PO made a mistake sending it to Amir. What did he use to plug it into...a home theatre receiver ? GMAFB ! His testing procedure is clearly erroneous and not relevant to the device and how it works in the signal chain. Who says the Entreq effect is measurable in the first place ?
Comments from those who have no experience with the device and applaud Amir are laughable. Get a life.
Comments from those who have no experience with the device and applaud Amir are laughable. Get a life.
I don't believe this product does anything, and still applaud Amir for his approach. I question any and every claim that it works, but that's just me. A simple test for any owner would be to just join all those cables together, in open air, away from this product, and see what you hear. Then plug them into the product again, and see what you hear.
we don't know...that is the whole issue. Has anyone measured stillpoints for example and how they affect the sound of a system/component ? Perhaps the same skeptic crew feels stillpoints don't affect the sound either ?
There is no valid science behind it; the manufacturer cannot articulate it either.
try to listen the difference (if any) with the only thing that can measure the goodness or not of the result. The ears!!
I do not think you can measure everything in this field. Do you measure the output of your amplifier when you test for new loudspeakers?
Simply you test and if you like and you have the budget, you buy.
However, I understand that this is the part of forum reserved for the measurements, so I'm not in the right place.
I do not think you can measure everything in this field. Do you measure the output of your amplifier when you test for new loudspeakers?
Simply you test and if you like and you have the budget, you buy.
However, I understand that this is the part of forum reserved for the measurements, so I'm not in the right place.
This is not the ear forum. It is the measurement forum. Anyone has a pair of ears and can do that evaluation. My role in this is having the test equipment and knowledge to run tests to determine if objectively we can identify what the box really does. The measurements demonstrate that which after seeing the data, is an obvious conclusion.
That said, I am continuing my testing. That is why the thread on ASR Forum is titled, "Entreq "signal grounding" Preliminary Measurements." It was intended to get feedback from knowledgeable people on the direction was going.
But yes, I plan to also listen but again, my unique value that I bring is in instrumentation. Any of you can listen and post your opinion.
Home theater receiver? What on earth are you talking about? No home theater receiver or any such thing was used in my testing.
The core testing apparatus was a $25,000 Audio Precision Analyzer. The device has a very accurate and accurate signal generator. I used this to generate a 1 Khz tone. I then use the analyzer portion to a) subtract the 1 Khz tone and show what was left. This is stand-in for a source device and pre-amp, except that in this case, we are talking about trusted, laboratory grade audio instrumentation.
The second test was using a 500 Megahertz Tektronix scope to instrument what is occurring on the wire connection to Entreq.
Third was a very sensitive AC microamp meter designed for detection of minute ground current leakage. This was used to see if any AC current travels over the connection to the Entreq terminal.
Forth was a differential probe used to eliminate airborne common mode noise injected onto the probes of the instrumentation.
None of this involves any home theater equipment.
Well, the clear intention for P-O for loaning me the device was to measure it. He is a very kind individual and despite the risk that are involved in any third-party evaluation he has chosen to participate in this work by loaning me the equipment.
My suggestion is that you contribute to the topic constructively rather than expressing anger and frustration. My "life" is this hobby where I enjoy learning what makes such equipment tick. Instead of telling you it is non-sense based on reading their web site, I have chosen to spend time making these measurements and publishing them. If it is not life for you, that's OK. But leave the interested parties be please.
This also is the "Measurement Based Audio Forum" here on WBF and why this header was started.
Why should test data by Amir be censored here? If some members of this forum can't behave themselves in a professional manner here they should be the ones that are moderated.
For those Entreq special products, perhaps this guy would know best:
Per-Olof Friberg
Entreq Headquarter:
Phone: +46 (0)705 200 500
Fax: +46 (0)42 520 50
e-mail: info@entreq.com
Rönnetorp 18
265 90 S-Åstorp
Sweden
Bob, he is the person who loaned me the equipment. See http://www.whatsbestforum.com/showt...llus-grounding-in-england&p=379996#post379996
I tried a Silver Tellus and Apollo cables in my system and I applaud Amir for his efforts.
Maybe someone in their contact list would know how to measure them; they make them, so they must know some', or is it an audio "secret"?
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