My god... the amount of pseudoscience...
You cannot reduce the resistance by running cable from the same hot source in parallel to the same end point, any more than you could do it by simply using a cable with greater diameter... The electrons can't tell a difference.
So if those cables make the difference because of parallel wires running from the same hot source, it's literally because there their combined area and width were bigger.
And fatter wires themselves are always recommended to be used for appliances that use a greater amount of electricity. If you have an electric heater, look at how fat its cable is. If you wonder why - it's exactly to reduce the resistance, and if you use a thinner cable, it might fry.
Audio amplifiers are weird - their AC source will take most energy at peaks, and the least on "sustain", so if your cable is overheating or has too high resistance for your amp, that means it's simply a cable unfit for the purpose, period. If your amp is rated at 1000w, use a cable that's also rated for 1000w+.
Also, there's no such thing as "getting electrons to the amp faster", it's either they get there in time or not at all. Just because there was a peak and not enough electrons got to the amp to make it sounds with the expected amplitude, doesn't mean electrons will get "late", it's that they won't get there at all due to resistance.
In a way, the only effect an unfitting cable will have on your sound is that it will compress the sound because the resistance is too high, not allowing the highest transients to ever hit their expected peak. It will also reduce the volume, so it's no wonder people like the smallest resistance cable better - IT SOUNDS LOUDER.
So the TL;DR is, buy a fatter cable designed for electric heaters and don't bother paying $150+ for this thing. If all that thing is doing is reducing resistance (which it should) then a fatter cable will do the exact same thing. Electronics aren't magic.
Now that I think of it, Victor could as well have been deceived in the same exact way, by being sold the same pseudoscientific story. Which I guess is sad, and I shouldn't be that hard on Victor.