Home
AudioAsylum Trader
Propeller Head Plaza

Technical and scientific discussion of amps, cables and other topics.

For Sale Ads

FAQ / News / Events

 

Use this form to submit comments directly to the Asylum moderators for this forum. We're particularly interested in truly outstanding posts that might be added to our FAQs.

You may also use this form to provide feedback or to call attention to messages that may be in violation of our content rules.

You must login to use this feature.

Inmate Login


Login to access features only available to registered Asylum Inmates.
    By default, logging in will set a session cookie that disappears when you close your browser. Clicking on the 'Remember my Moniker & Password' below will cause a permanent 'Login Cookie' to be set.

Moniker/Username:

The Name that you picked or by default, your email.
Forgot Moniker?

 
 

Examples "Rapper", "Bob W", "joe@aol.com".

Password:    

Forgot Password?

 Remember my Moniker & Password ( What's this?)

If you don't have an Asylum Account, you can create one by clicking Here.

Our privacy policy can be reviewed by clicking Here.

Inmate Comments

From:  
Your Email:  
Subject:  

Message Comments

   

Original Message

RE: Cable shootout... Are all audio cables the same?

Posted by tomservo on June 23, 2014 at 08:45:23:

“So far I have not heard you say that the audio signal itself, the electromagnetic wave, the one that travels down the cable at near light speed, is alternating back and forth along the cable (as claimed by naysayers of wire directionality)”

Well that is true, I have not said that.
Perhaps I can clarify this further but it will involve some electronic engineering.

It is current alone that produces the H or magnetic induction resulting in a magnetic field B, it is Voltage across a load or resistance which causes current to flow.

The signal Voltage propagates at the cables propagation velocity and is set by the cables series inductance and parallel capacitance and can vary from near light speed to as slow as near half light speed.

It sounds like your confusion is based on the “signal” being somehow different than the Voltage which is the signal.

If interested, the next edition of “Handbook for Sound Engineers” being printed now has a chapter on loudspeakers which goes into this exact thing in some detail.

“So, whaddya think, is the audio signal traveling down the cable in one direction only?”

Again some confusion, YOU are the one who thinks “the signal” travels one way better than the other, my point is “the signal” is a Voltage magnitude referenced AC signal which spends half the time going one way and half the other.