Funniest snake oil theories

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#3,602
Bob Richards said:
Cable Impedance: If you go high enough in frequency, a cable becomes analagous to an acoustic chamber. It gets to where you have to feed a cable that has a certain "characteristic impedance" (75 ohm for example) with the same source impedance (75 ohm), and terminate the cable at the other end with the same impedance (75 ohm). If you don't set it up that way, there will be reflections of the signal in the cable. Video processing equipment and digital circuitry has no choice but to deal with this rather accurately, or it's a disaster. Many runs on a computer circuit board are designed to have a certain "characteristic impedance" that works with the source and load impedance so it can move data at the fastest possible speed without mis-communication. Luckily this only applies to energies above hundreds of kHZ, from my experience anyway.
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You start controlling the impedances for USB, DDR interfaces GHz Ethernet, so into the high MHz, below that is a general free for all; and it works.
 
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#3,603
KBK said:
Our 'problem', with analog audio, is that the complex harmonic inter-mixing of the signal being transmitted down/on an audio cable, does indeed reach well into the +100khz range.

Every single time the signal peaks, which is, on average, what..5000, 1000 times a second?...the signal is momentarily DC in nature. Just for a microsecond. Fractions, actually. and the collapse to core, begins.

What this means, is that the peaks are broken up into motions toward being discrete DC drops..to the core of the wire, then back out into being expressed as complex field, as the motion begins again and the field orientation peaks reverse.

We are sensitive to noise threshold, and we have a DB vs signal limit, in order to discern. We are wired to discern signal through noise, as an intelligent decoding computer, with incredible software/hardware.

Thus, we listen to signal on those cables, through noise. Noise that slowly overcomes the signal, as the signal level increases. At a certain point, once a person learns to 'hear' it, they can hear an audio cable reach 'overload' in signal level.

As long as people use the frozen lattice structures called 'metal' as a marginally conductive pathway for signal, this will be the result.
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Car to elaborate on lattice structures and conducting a signal...or should we look at crystal boundaries.
 
#3,611
Hallmar said:
Coconut-Audio

This is probably the funniest snake oil scam i've ever seen.

I can't stop laughing at this guy.
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To get the best sound, you should spend at least 95% of your entire system on our cables, 4% on our tweaks, and 1% on electronics.



banghead.gif
 
#3,615
tvrgeek said:
What amazes me is this is a very expensive presentation. It is better done than most real snake oil, and far better than many serious product webs. Sad. Really sad. Maybe it was a school project. A+
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Possibly. My wife could put this together in a day or two. She has repeatedly urged me to abandon my conscience and integrity to seriously sell crapola to the gullible.😀
 
#3,617
peteleoni said:
People are always putting Behringer down. Its just the thing to do, makes you "cool" They are pretty bad about knocking off aesthetic design, however that aside.....some of that gear is damn good at any price. I think a properly gain staged dcx used with digital in only will more than hold its own against most anything that does that job. I've yet to feel good about anythings adda sound.
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Some Behringer stuff may not be bad. When I talked with two different Behringer reps, they both told me the stuff sucks, and getting any replacement parts for a repair was impossible. Check out this page I created about some of their design flaws in the DCX and the DEQ2496:

Bob's Behringer mod
 
#3,618
Bob Richards said:
Some Behringer stuff may not be bad. When I talked with two different Behringer reps, they both told me the stuff sucks, and getting any replacement parts for a repair was impossible. Check out this page I created about some of their design flaws in the DCX and the DEQ2496:

Bob's Behringer mod
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Question, does Behringer really use non-oversampling A/D's? You may want to review the issue of aliasing and sigma/delta converters.

Analog Devices: Analog Dialogue: Ask The Applications Engineer - 15
 
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