diy bybee quantum purifiers?

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yawnies. Another thread that misses the point.

The "science" behind the device is irrelevant until (unless) it can be shown empirically and consistently that the claimed effect exists.

Claims of audio experts don't meet this standard I'm afraid, regardless of the individual' expert's opinion or standing.

Since there is no scientific evidence that the bybee ANYTHING makes the audible differences that are claimed, the science is moot....

Hence, caveat emptor applies and educated cynicism should be applied as it is to requests for assistance in Nigerian banking arrangements.

I'll add that in this regard, JB is not alone.
 
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No, it's not. It might be a dielectric resonator. A cavity resonator is a hunk of metal with a hole in it.
[snip]
These are extremely narrowband microwave devices used in oscillators and filters.
...which brings us back to John's comment about beryllium resistors, which were also commonly used in RF/microwave circuits.

Whatever the purifiers are supposed to do, the construction suggests concern with high frequency behavior. What was that about 42GHz again?
 
Any microwave specialists out there? Jack certainly goes out of his way to create something that could not 'possibly' work. ;-) Do you know that someone, well known in the audio industry (he made FM tuners) told me that it was microwave based, over 10 years ago? Of course, he is an RF expert, and he ACTUALLY had some devices to play with, before he made that statement.
 
If you have noise present in any electrical system, what is one of the most common ways to attenuate this noise so it dosn't get out into the world around the equipement, especialy if you dont want to be detected?
Works at various frequencys including microwave!
Often used on cables!
Ceramic based material!
Miniscule effect at audio frequencys!
Reduces the noise floor, used a lot on high speed digital boards to create power islands (look up Cyclone FPGA PLL supply).
A wonderous product used in electronics for EMC problems!!!
 
But people claim they help, so we cant be sure. In 100 years time diyaudio folk will read this thread and think we are part of the:

Flat Earth Society - Wikipedia, the free encyclopedia

:D

Please, I will post this link again.
Placebo - Wikipedia, the free encyclopedia

The placebo effect is not limited to medications. The issue is that we are remarkably susceptible to suggestion, the power of our minds overrides many measurable things in the subjective world.

In medicine, the standard of testing is a medication (chemical) tested against placebo (sham). This test has to be double blind to have credibility. This means both the subject and the tester don't know which is the item tested and which is the sham.

If there are no double blind, controlled tests A MEDICATION IS NOT APPROVED AND CANNOT BE SOLD WITH ANY SUCH HEALTH CLAIMS.

The placebo effect is robust. For example, I have been reviewing older studies on the use of Botox (botulinum toxin) to treat migraine headache. 30% of people tested had a response to sham injection equal or better to that of the Botox. Interestingly, this 30% number is remarkably consistent with most other failed headache trials. Not only must the medication overcome this remarkable response to sham medication, it ALSO must show a statistically significant benefit over placebo (or other drugs), safety, and COST EFFECTIVENESS. Needless to say, Botox is not currently approved, nor accepted, for the treatment of migraine headache.

Note: There are a lot of people who BELIEVE it helps and are willing to pay $1500 or so every three months for these treatments.

There have been a few blinded tests with SS vs Valve amps, cables and a few other things, they have really showed only that all differences are personal and subjective. They cannot show that any tested item is consistently better (in terms of listener preference, the only important measure) than any other.

Since there is no Audio equivalent of the FDA, we have to thread this subjective fine line ourselves. It is up to you to decide how much you will pay for a potential (and perhaps likely) placebo affect on your listening and whether it matters or not that it is placebo or real.

If you want to spend $300, $1000 or whatever on claim without any study, test or controlled evaluation AND WITHOUT EVEN A MANUFACTURERS RATIONAL EXPLANATION OF HOW IT MIGHT WORK, you do so at your own risk.

By the way, this is not by any means exclusive to Bybee, there are a lot of things out there...

nuff said?
 
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