No one actually knows how to lculate what speaker cable they need


It goes back to cable manufaturars, mostly provide no relevant data! to sales and the users. None will answer this!
Whay do you think that you own now the optimal cable to your setup?
I think I've figured it out. 


128x128b4icu
Post removed 
@b4icu Why I choose the M1 ?
The M1 provides me the highest dynamics and is more transparent than any other amp I've had or heard. But I have to admit that the difference may also be caused partially by the pre-amp, which I switched at the same time. I have a set-up using everything from the same manufacturer, and this combination is just amazing. 

Mr. grannyring

Thanks.

When do you think you will get that 0 AWG cable and share with us?

Please be kindly reminded to use my format to present that data. Thanks.

Mr. han_n

At the time you were looking into the M1, did you know of FM Acoustics?

They are also Swiss made and have some excellent stuff.

For those who are worried of a speaker cables impedance (none resistance values, of capacitance and inductance, in addition to the resistance):

Capacitance: https://en.wikipedia.org/wiki/Capacitor#Parallel-plate_model

The Parallel-plate model, of two thin parallel conductive plates resembling the two speaker wires (red and black) with a dielectric material in between (the cable's isolators).

The structure of such speaker cable is provided by how the two wires are embedded into the isolator. Some are round and twisted, some are flat and are one next to the other (not top over the other!). This is mostly defined by the length and width of the cable (equal area of a capacitor plates) the distance in between (the two wires) and the isolating material that gets in between. It is always about two of them: the red wire isolator and the black wire isolator.

Some designs separate the two cables (my DIY approach), to be of two different cables. Then they are apart from each other and not run in parallel as with some other designs.

In most cables, such a capacitance is of a few Pico farads (10-9) and it is a very small value in general, especially when refer to a voltage source as a SS, with very low output resistance and at audio frequencies (up to 100kHz).

  

Inductance: https://en.wikipedia.org/wiki/Inductance

The Mutual inductance of two parallel straight wires is the more relevant to speaker cables, unless you have a long cable coiled on the floor. Again, if the two are separate (my DIY approach) the inductance is null. In some cables that would run the two wires in parallel as in flat cables, of the twisted pair approach, it is more of a concern. But even there, at most times the value of such Inductance is of micro Henry (10-6). Also a tiny value compared to the cross over coils and the speaker drivers. The value is too small to be of a concern with most SS amplification and the audio frequency range.

The ideal cable would be one with no Inductance and no Capacitance (also no resistance). Presence of such impedance of a speaker cable (or any cable) might work as a filter, depends of topology and values. No one wants that over a cable. Some of the amplifiers (tube and tube alike) are more susceptible to cable impedance and those would color the sound. At those cases a negligible thing might become noticeable.

A cable that would present a capacitance between two ends of a speaker cable (as seen by the amp.) is called Low Pass Filter (LPF) https://en.wikipedia.org/wiki/Low-pass_filter

The higher the FR, the more of that energy is absolved by the capacitor. If a cable is presented with an inductance, it would be serial. That is also a LPF. (Ref. to the RLC model).

Summary:  

Cables with impedance are less good for a 1:1 transfer function as a speaker cable.

Separate cables as my DIY approach, would be the best to decrease any impedance to null.

Cables that are molded in a parallel structure, flat or in twisted pairs, may have an impedance factor. Try to avoid them as much as possible.

A cable's impedance (of significant values) would act as a LPF on an audio signal and will dim the highs vs. other FR.

From now on, please keep the impedance issue out of my cables solution. They do not apply.