10 Audio Cable Myths and Facts



In a sea of audio cable industry snake oil, we’re sure you’re wondering, What really matters when buying cables?Save your money by avoiding overpriced cables with outlandish claims. Below are some common myths to look out for and some important things to consider when buying audio cables.
 
CABLE MYTHS1. Conductor skin effect

In some applications like power transmission lines, an electric signal tends to travel through the surface of a conductor and avoids traveling through the center of the conductor. Many cable companies claim that their design limits the skin effect and measurably improves your sound.

The TruthWhile skin effect is a very real issue for large scale power transmission, audio signals are in such a low-frequency range that the skin effect is negligible at best. The skin effect is only an issue in high-frequency applications. 20kHz is the highest frequency that humans can hear. If we calculate the skin effect on a 12 AWG speaker cable like Gene from Audioholics does in this article, we find that the skin effect results in a loss of only -.014dB. Your speakers, room acoustics, and the human ear have a much larger effect on your sound than the skin effect.
2. Cable break-in

Don’t be fooled - any company that claims this thinks they can trick you into hearing better sound after a month or two. “Break-in” is a commonly used term throughout the industry. It is the idea that the dielectric of a cable changes and aligns itself to the electromagnetic field of the signal traveling through the conductors.

The Truth

There is no scientific evidence to support the idea of cable break-in, but there are still those who claim it improves sonic qualities. We’re not against optimism. We’re just not full of crap. Don’t drink the audio industry kool-aid and save your money for legitimate cables.
 

3. Cryogenic treatment

Cryogenic treatment is the process of freezing cables to -320 degrees Fahrenheit before use. The claim is that freezing the conductors of the cable at ultra low temperatures aligns the crystalline grain structure of them resulting in desirable improvements.

The Truth

Again there is no scientific data to support this notion. Cryogenic treatment can improve the durability of certain metals, usually steel, by stabilizing impurities. For example, the process is used to create strong tools or car parts.  

But, steel is a terrible metal to use for audio cables. It is one of the least conductive metals out there! Copper and silver are the best conductors of electricity and the preferred metals for audio cables.


4. Cable signal direction

You might hear this phrase tossed around quite a bit. It’s the notion that a cable has an established signal direction, the direction in which it was initially used, and that this signal direction should not be reversed.

The Truth

The reality is, assuming the connector ends and terminals are the same, the cable will work in both directions and the performance will be equivalent.

5. Cable elevators, risers, or lifts

 

The claim is that the cables’ magnetic field can interfere with the surface it is laying on. Essentially, the magnetic field can “reflect” from the surface back into the cable and cause distortions.

 

The Truth

There is no evidence to support these claims, and these unnecessary devices are merely for looks. They are in no way proven to improve cable performance.  

    CABLE FACTS1. Shielding is Important

    In the modern age, wireless signals are all around us all the time. The rapid growth and spread of technology means that these wireless signals will become more widespread and more likely to cause unwanted interference. Cellphones, wifi, and Bluetooth signals can enter your cables, but shielding can block these signals and preserve your sound quality.

    2. Length is a Factor

    No matter how well a cable is designed, cable length will always impact performance. As the length of a cable goes up, so does the risk of unwanted interference and signal loss. We always recommend keeping your cables as short as possible, but we understand that is not always possible. A well constructed and shielded cable will help combat this issue.

      3. Conductor material plays a role

      The best conductors to use for audio cables are pure silver or pure copper. Both are valued for their high conductivity, but copper is more widely used due to the high price of silver. Additionally, some variations are constructed with silver-plated copper. However, because the metals have different conductivities, the sound is more likely to travel through only the silver plating and not the copper.

      The purity of the conductor will affect performance more than anything. Look for Oxygen-Free High Conductivity (OFHC) conductors. This means that a significant percentage of oxygen and other impurities have been removed from the conductor resulting in high purity.  

      4. Wire gauge should not be overlooked

      The amount of wattage your system is using will determine the total gauge size needed for safe and optimal performance. The standard is 14 gauge wire minimum for the transmission of 250 watts of power. Many electronic devices use much less than this, but some speakers and listening setups may be using more. If your system uses more than 250 Watts, we recommend a higher total gauge cable.

      5. Quality connectors matter

      Truly, the best connectors are no connectors at all. But, if you can’t hardwire your system, gold plated connectors are the industry standard. Gold plating exhibits great corrosion resistance when exposed to oxygen and has good conductive properties. Connectors range from basic to extremely high end and flashy.

      The bottom line is:
      Choose connectors based on your personal needs and the type of connection being made. Overall, always choose quality connectors.  

      We hope these myths and facts will help you choose quality, reasonably priced cables to complete your listening room, studio, or whatever your setup may be.

      Share your setup with us in the comments below!

      128x128shieldedaudio
      I love seeing someone in the industry with the balls to say that the emperor is wearing no clothes.  It is amazing to see how "educated" and "smart" folks spend huge dollars on $5K power cables, speaker cable elevators, and other mysterious snake oil solutions just because some company did a fantastic marketing job.  I do urge them to continue spending big bucks on these super high margin items because they help to keep all of our local audio stores in business.  

      Thank you shieldedaudio for speaking the truth!
      Rip van Winkles of the world, the world has passed you by. Wake up and smell the coffee!! ☕️
      Why this? An endless discussion about how or if audio cables of particular designs "work" or not. I was in the "wire is wire" camp for 30 years or so. I just used the largest gauge stock power cords that I could. How could a piece of wire a meter or so long change or improve my system? Interconnects and speaker cable were purchased used and plain Jane mid-grade stuff. I decided to "try" a better quality AC cable and I was blown away by the improvement it made. Did it matter that it was cryo treated and braided with noise filtering ends etc? Of course not. Did better power cables improve my enjoyment of the music? Absolutely and without question! So, for me buying better "snake oil" has made me much happier with how I hear (and feel) the music that my system presents. Why rehash this stuff? Try what you would like and let everyone decide for themselves what works for them and what does not. Finally, IMO, those who step outside the box and think differently push the boundaries of
      how we experience recorded music in our homes. I feel blessed to have audio pioneers (cable guys) always trying to move us forward and allowing us to better enjoy the music we love and keep us listening and thinking.     
      Cable stories are all bull.

      Any decent cable made for audio will do and anyone who says they can "hear" the difference is lying.

      Period.

      Now, if you believe YOU can hear it, go buy a $100,000 cable.  The seller is laughing all the way to the bank, but YOU are happy.

      Everyone wins!
      So much of his so-called truths are pure BS

      The primary issues are Inductance, Capacitance, AND Skin Effect,


      As to direction: Wire cables are extruded, which means the outer layer gets rolled back onto the wire. How could any intelligent person not realize that has a negative affect on electron flow

      but then his UN is a dead giveaway.