Maxwell's equations are a good start. LIGO uses them, Speakers use them. CD players use them. Even mobile phones use them. Same science, different engineering.
No, I do not subscribe to Linear Audio, but I have been using a cap across the sec of Xformers for a very long time. I respect Mark and his work.
It's great when something measures good and it sounds good. But sounding good is the most important thing, and we all do not like the same thing in sound. To each his own. Nice post waly, fair and balanced.
I'm not sure it's possible to follow someone else's experience? I guess that's lost in translation
Good info. Thanks for sharing your findings Extreme_Boky. I like finding the components that work best in my app like you do.
Yes, solid core is the kind that is the easiest to hear as it is only one strand that has been pulled thru the die's in one direction. John Curl's bis partner Bob Crump (RIP) knew this all to well.
Cables are directional ... of course ... why wouldn't they be if you have a plug on one end and a socket on the other ???? Good thing too or we'd be electrocuting ourselves all the time.
You can make a directional cable of sorts ... increase the diameter of the wire as you progress down the cable, lowering its resistance one way and increasing it the other ... providing of course that the neutral and phase conductors preference goes the opposite direction and it continues to get bigger as you go around the loop.
You can make a directional cable of sorts ... increase the diameter of the wire as you progress down the cable, lowering its resistance one way and increasing it the other ... providing of course that the neutral and phase conductors preference goes the opposite direction and it continues to get bigger as you go around the loop.
Right, different engineering
So now show us the scientific measurements used in the engineering of audio systems which demonstrates your statement where you put up auditory perception against SCIENCE "that can measure 1/10,000th the width of a proton changes in space time"?
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Search the web, companies are making devices to do just this. Just about every high end cable vendor will recommend burn in of their cables. Some reviewers request 100hr burn in from the companies that build the products to be reviewed. I have heard the effect of burn in.
I am starting to see how cables CAN be directional ... some of my USB adapter cables are directional too ... ;-)
About the diode recovery: That is an old problem, as old as diodes are. Main idea: The recovery current spikes are timewise spaced at 1 / 100Hz or 1/ 120Hz, plus they contain multiples / harmonics of those line frequencies. If you hear hum or buzz, diodes are one of many possible ways, how hum can get into the audio signal chain (one of MANY). Good systems have no hum or hum at -110dB. And if no hum, then you just do not care about diode recovery. So how would diodes affect the sound if they do not add noise in a well-designed system?
Funny you should say that - with high speed signalling the characteristic impedance of the cable should be consistent throughout the length of the cable. Do you think the engineering tolerance of the usual cables used in such transmissions are consistent throughout their length?
Reflections occur when the signal encounters such impedance changes throughout the cables length.These reflections will have a characteristic profile because it meets a series of impedance changes throughout the cable length. Change the cable around & this series of impedance changes is reversed & will now be at different distances from the transmitter & the profile & timing of the reflections arriving back at the transmitter will be different.
Does this change the sound? I don't know but the mechanism is understood & known.
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Some companies are making "magic stones" or pendulums or whatever. Just about every "earth rays" nut will recommend to use what he is peddling. Some of them request furniture to be moved in order to have their devices "working properly" or other adjustments. Many think they have benefited from doing so.
And why companies do that? Guess what : The "burn in" is part of their "story" that the cables are "special" or "valuable". Many people will need some extra "careful handling recommendations" in order to believe in all of this. Only if they believe, will the $$$ come the way of the company.
I mean the USB cables that have Type B on one end and Type A on the other - they are directional since I just cannot use them in the other direction.
High speed signalling is a completely other world with all the reflections that you can have of just too low bending radius and the characteristic impedances etc..
High speed signalling is MATCHED impedance-wise to sender and receiver impedance, otherwise reflections occur.
Audio signal cables like RCA are driven low-ohmic and go into a high impedance input. That and the low frequencies involved make audio signal cables soooo uncritical. Change the length, the diameter of the conductor, the material, bend it or cut it and solder the pieces together - there will just be NO ANY difference in audio tranmsmission.
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