(11-Jul-2022, 17:08)daniel.avasilichioaei Wrote: I'm not an expert, but, as far as I understand, we are talking about a circuit in which they are put in series:
- a power generator (amplifier)
- a resistor (speaker)
- the two connecting cables.
The speaker has a resistance (more precisely impedance) from about 4 Ohms and up.
What is the relevance of the resistance of the amplifier and of the cables, in the conditions in which it is of the order of 0.01 Ohm? The speaker has a resistance hundreds / thousands of times higher than that of the cables...
Hi
Its not precise.
1. The speaker, regardless of it's impedance (resistance) it is a coil moving in a magnetic field. By Lentz law, when it moves by the current driven by the Amp., it becomes a generator, that generates a current, in opposite direction, of the same magnitude. The Amp, Damping Factor, supposed to damp it. Here it's when the DF value kicks in.
The more Df, the more control over the speaker.
The speaker cables, are like arms to place that power from the Amp. over the speakers.
Thin wires are weak arms. Thick cables are strong arms.
The thickness can go thick till a certain gauge. Once that is reached (optimum), even if you thicken the cable, the at wont benefit the sound or the control.
This optimum, can be calculated. It works till you replace the Amp, or change the cables length.
