Dimitri
Senior Member
One set of wires = $I've never seen a rational justification for bi-wiring
Two sets of wires= 2 x $
It should be called bi-profit wiring
One set of wires = $I've never seen a rational justification for bi-wiring
Looks pretty good!Agreed but I splurge on the 4s11: https://www.markertek.com/product/4...14awg-4-conductor-speaker-cable-grey-per-foot
Roberto's favorite saying is "trust your ears".
I played several of the same tracks today that I did yesterday and there was a pretty significant difference.
No a inductor coil only has one conductor. There is no opposite conductor to cancel the field.Does this have anything to do with how an Air-Coil (like in speaker crossover) works?
No the loop inductance does not increase. Because at any instance the currents in the two conductors are going in the opposite directions the fields effectively cancel, so the total loop inductance remanes about the same. But with AC power cords carrying lots of current, the coil area can heat up.
Roberto's favorite saying is "trust your ears".
The second one has two arrow heads. Depending on if and where where it is divided into two arrows, the longer arrow can be either side.Crap, you're right, there has to be a vector of the field in the area of the coil, and with the return path there just isn't. At least at any reasonable distance. My bad.
Do you trust your eyes?
Which arrow is longer?
I have a genuine interest in this topic, and have read in other stereo forums yesterday that coiling up or looping speaker wire does not make a difference so I do not dispute that, just trying to understand it.No a inductor coil only has one conductor. There is no opposite conductor to cancel the field.
Well, all wire creates a magnetic field when electricity flows through it. When the wire is coiled, it shapes the field and concentrates it towards its core, which increases its magnetic properties. The magnetic field that is created by the inductor holds energy, and when the current changes, the fields induces more current back into the circuit to try to keep it stable. Hence, the name inductor.
Whereas capacitors create electric fields and resist changes in voltage, inductors produce magnetic fields and resist changes in current.
The first indication that determines the inductance of a coil is the number of turns (or loops) a coil has. As a general rule coils with more turns have more inductance than coils with less turns.
It's hard to explain 5 chapters of basic electronics in a speaker cable thread. But you seam to be confusing a wire (which has a single conductor) with a cable/cord (which has two conductors that have signals traveling in the opposite direction).I have a genuine interest in this topic, and have read in other stereo forums yesterday that coiling up or looping speaker wire does not make a difference so I do not dispute that, just trying to understand it.
Strange that your link refers to it as speaker wire (it has 2 conductors). Many of us would think of it as speaker cable (or maybe cord).Lets say we create two experimental situations.
(1.) 1,000 foot run of straight speaker wire run between amp and loudspeaker.
(2.) 1,000 feet of reel wooden spooled wired kept in coiled condition in between amp and loudspeaker hook up.
What if any differences would there be, measured or otherwise notable.
Strange that your link refers to it as speaker wire (it has 2 conductors). Many of us would think of it as speaker cable (or maybe cord).
There would be small measurable differences because in a tight coil like these the cancellation is far from perfect.
Oh my, yes this is eye opening, thank you for putting this in context for me.It's hard to explain 5 chapters of basic electronics in a speaker cable thread. But you seam to be confusing a wire (which has a single conductor) with a cable/cord (which has two conductors that have signals traveling in the opposite direction).
And like every answer leads to more questions, the newest question is; just how "equal" are these signals moving in opposite directions?
If the speaker cable(2 conductors) was a straight run wouldn't the magnetic fields between them be additive vs canceled in the Star-quad geometry?Strange that your link refers to it as speaker wire (it has 2 conductors). Many of us would think of it as speaker cable (or maybe cord).
There would be small measurable differences because in a tight coil like these the cancellation is far from perfect.
Just trying to understand crosstalk.In a 2 conductor or StarQuad speaker cable, the conductors are spaced apart by the insulation, so the field cancellation is not perfect (but the StarQuad does a better job). Because the StarQuad has 2 fields going one direction, and the diagonal 2 fields going the opposite direction.
In a tightly machine wound real, the layers are very close to each other, so they crosstalk (so to speak to each other).
Is it the magnetic field generated by the current in one conductor influencing the current in the other one?
More from the same site.
- Consistent electrical qualities – The conductor spacing is fixed and the geometry of the cable is constant. This geometry brings consistent electrical qualities that include impedance, capacitance, inductance, time, delay, crosstalk and attenuation.
- Greater current-carrying capacity – Flat cables have greater surface-to-volume ratios than their round-cable counterparts. Consequently, flat cables dissipate heat more efficiently. This thermal efficiency lets them handle a higher current level for a given temperature rise and conductor cross-section.
Ultimately, where signal-to-noise purity, flexibility, heat, weight and volume efficiencies are paramount, flat cables have better inherent performance values than found in round cable. Until now round cable deficiencies have been tolerated, and engineered around, because it is very common and tooling exists for efficient terminating and assembly.
Conservation of energy, mass, and charge. First principles.