Minesweeper, sometimes Sudoku

I imagine SNR is iffy on that one

does it look like a "eeeeeeeeeeeeeee" or an "aaaaaaaaaaaaaaaa" to you?

Thank you for elaborating. This was a good read.

no problem. electrical engineering is a fascinating rabbit hole and there are many good sources from which you can get the basics and then dive deeper into the stuff that interests you.

OK I will bite.

impedance does not equal electrical resistance.

Components like capacitors and inductors behave very differently in DC systems and AC systems.

In DC Systems they have only a normal electrical resistance value except for the short period when current is changing when a capacitor is discharging for instance. Capacitors for instance are isolators in DC systems.

In AC systems capacitors and inductors are not isolators anymore but introduce a phase shift in the AC current. In the relevant equations their influence needs to be expressed as a complex value if you want to see the full picture.

When you are simplifying AC equations, you can apply a so called impedance value to such systems for some equations which then behaves like resistance (and has the same unit as electrical resistance) as long you can ignore phase shift behavior which is not always possible.

So you really do not use the word impedance for DC systems. It has a very subtle technical meaning.

Mathematically it is a combination of electrical resistance and these phaseshifting effects in AC systems.

Cables usually don't have an impedance value but just a electrical resistance value because you would have to coil them really tightly and introduce an AC current in order to have a coil again and then its not a normal cable anymore.

Edit: and I am completely skipping even more subtle concepts like pulse propagation and modulation, shielded cables and much much more.

he probably wanted to say something about "electrically conductive resistance" as you worded it, which doesn't make any sense and makes one think that you don't really know what you are talking about ;)

yohoohooo ~~~ try the solutions here or it's time to sail the seven seas! If you want high quality recordings of old classics on vinyl the pirate life might be the only viable option.

Congrats if you really can distinguish between 320k @44.1kHz 16b MP3 and something like 24b, 96kHz FLAC, even on the best possible equipment.