Remarkable wisdoms..
Edit (could not resist), a Dude would have said "Well yeah....it's like your opinion mannn" (Or even "this agression will not stand mannn..." But seriously, it's all about listening to the cables and then trying to explain it. What Max is doing, I see as what is common in R&D to state a hypothesis and next try to go through test (experiments, which Max also calls what he does), analysis and discussions. As I saw in the 5Dec video, Max is very open and willing to move with better ideas. I like the constructive approach when it comes to scrutinising technical stuff and ideas, it will get everyone further (and in a respectful way)
I will try to explain what you saw and the real world significance once more:
The step shot does not exist in audio. What you see are the highest harmonics that differ. I won't deny that the cable doesn't work. It does and when Amir gets the cable he will measure the same but at least (I hope) he will also show the references.
Now what you see (and hear) is a substantial loss in higher frequencies ACROSS 1 conductor of the cable.
Lets do some simple math...
The previously posted plots with all the weird configurations shows differences between 'normal' cable and 'isolda' cable.
The 'normal' cable shows 9.5dB loss and the Isolda 2.5dB loss at 20kHz. A stunning 7 dB right ? That MUST be audible.
Here is the fun about dB's ... they are nothing more than a ratio.
In this case with the same current and DC resistance of the cable both the Isolda and 'normal' geometry cable it is clear the Isolda is best.
The generic cable with the same DC resistance is clearly higher.
But how high IS this really.
2.5dB (opposite a short which is 0 Ohm) is the DC resistance of 1 conductor in a cable.
2.5dB = factor 1.3
The 'normal' cable at 20kHz = 9.5dB = factor 2.98
This means the difference from DC resistance (and resistance of Isolda at 20kHz) thus is a
factor 2.3
The Isolda cable is specified by Max on his website as 8.4mOhm/meter.
We are looking at 1 conductor and a cable has 2 in series. This means 4.2mOhm/meter per conductor.
The cable is 7m long thus the cable resistance of the 1 conductor that is measured across is 29.4mOhm.
As the 'normal' cable is also 29.4mOhm (or very close to it acc to his measurements) the resistance of the 'normal' cable at 20kHz is not 29.4mOhm but a factor 2.3 higher = 67.6mOhm.
Now... the total cable resistance = 58.8 mOhm and the 'normal' cable is 135.2 mOhm
Lets assume we have an 8 Ohm speaker that is purely resistive We get simple voltage division.
0.059Ohm (=59mOhm) + 8 Ohm leaves 0.9927 x Uin = -0.064dB loss
In the 'normal' cable at 20kHz we have 0.135Ohm + 8 Ohm = 0.9834 x Uin = -0.145dB loss.
And this is without the obligatory 1.5uH inductor in front of the cable... more about that later.
This means with a 7m cable you get a whopping 0.08dB less energy at 20kHz compared to a 7m Isolda cable.
The price you have to pay = $ 4000.- for an inaudible small 0.08dB more treble.
Normal 'speaker wire' will cost you less than $ 100.- ... This is -32dB in $ opposite Max's cable (dB's are so much fun)
Now... to ensure the low inductance (which is completely undone by the added 1.5μH inductors so 3μH) and high capacitance cable is safe for all amps and assuming the DC resistance is 0 Ohm (is higher of course) the inductor will add 0 Ohm for DC but at 20kHz its resistance = 0.38 Ohm.
We need to do the calculus again but with the 0.38Ohm at 20kHz added.
0.059Ohm (=59mOhm) + 8 Ohm leaves 0.9927 x Uin = -0.064dB loss (its more as the inductor is not 0 Ohm)
In the 'normal' cable at 20kHz we have 0.135Ohm + 8 Ohm = 0.9834 x Uin = -0.145dB loss.
With the inductor added we have 0.439 + 8 Ohm = 0.948 x Uin = -0.46dB at 20kHz.
This changes everything... When the cable is equipped with the inductor the $4k miracle cable will have 0.315 dB LESS treble energy than a 'normal' cable.
So you pay $4k and get 0.315dB less treble at 20kHz where one is led to believe you get 0.145dB more treble energy because of the demonstration and paper where the extra inductors are left out.
Now you get that the 'tremendous research' amounts to no gain at all except for Max's wallet. I like the guy so its fine if people are willing to donate substantial amounts once in a while to feed his family. That's all what the rich guys buying these cables are doing.
They are buying an illusion.
Any idea why Max doesn't show you the differences across the speaker and only across one conductor ?
Well the above is the reason.
I hope, when
@amirm gets the cable he will measure the input vs output and perhaps a real world speaker on his awesome klippel device and shows everyone the huge gain in quality across a speaker.