drewd
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Quote:
Consider that in stranded wire, the signal is traveling across many more than four different wires and I honestly don't think that anybody can tell the difference between solid and stranded wire manufactured to the same specifications.
There's also some talk about smearing from differences in wire lengths, but I also think that's a little suspect:
Purely from an engineering point of view, the signal is going to be traveling on the wire at a speed of at least .5c - that's 1.5x10^8 meters per second. Doing easy math (that is, assuming a 1.5m cable), the signal will reach the end of the cable in a maximum of 15ns.
Now, if the delta in wire lengths is as much as a centimeter (.01m), that means that there could be a delay between the first and last signal arrival of 150ps (.15ns). That's not audible. And a centimeter is a pretty large error.
What may be audible is the potential for inconsistent capacitance in the hand braided wire, but that's unavoidable.
Ideally, the braiding will cause the cable to have a relatively constant impedance and act to reduce noise by causing any noise introduced into one side to also be introduced into the other, thus maintaining the same relative voltage between the two. Balanced cables really perfect that idea. In practice, it's very difficult to do perfectly (by hand) because the wire spacing needs to be constant throughout the cable.
It seems to me that the biggest benefit of braiding by hand is that the cable is more managable.
It seems to me that an awful lot of people want to treat cable design with transmission line theory, but at audio frequencies, it doesn't work that way - a wire is a wire. So a lot of stuff that gets tossed out about how cables work just isn't accurate, even at 20kHz.
I'm pretty sure that I've strayed way off topic at this point...sorry...
-Drew
Originally Posted by philodox so why is this a good thing? wouldnt the signal travelling across 4 different wires degrade the sound? Or does the braiding itself add benifits that overshadow this? |
Consider that in stranded wire, the signal is traveling across many more than four different wires and I honestly don't think that anybody can tell the difference between solid and stranded wire manufactured to the same specifications.
There's also some talk about smearing from differences in wire lengths, but I also think that's a little suspect:
Purely from an engineering point of view, the signal is going to be traveling on the wire at a speed of at least .5c - that's 1.5x10^8 meters per second. Doing easy math (that is, assuming a 1.5m cable), the signal will reach the end of the cable in a maximum of 15ns.
Now, if the delta in wire lengths is as much as a centimeter (.01m), that means that there could be a delay between the first and last signal arrival of 150ps (.15ns). That's not audible. And a centimeter is a pretty large error.
What may be audible is the potential for inconsistent capacitance in the hand braided wire, but that's unavoidable.
Ideally, the braiding will cause the cable to have a relatively constant impedance and act to reduce noise by causing any noise introduced into one side to also be introduced into the other, thus maintaining the same relative voltage between the two. Balanced cables really perfect that idea. In practice, it's very difficult to do perfectly (by hand) because the wire spacing needs to be constant throughout the cable.
It seems to me that the biggest benefit of braiding by hand is that the cable is more managable.
It seems to me that an awful lot of people want to treat cable design with transmission line theory, but at audio frequencies, it doesn't work that way - a wire is a wire. So a lot of stuff that gets tossed out about how cables work just isn't accurate, even at 20kHz.
I'm pretty sure that I've strayed way off topic at this point...sorry...
-Drew