Title & content



The Polk Audio Cobra Speaker Cable

Polk Cobra in ideal Standard 6-Parallel configuration
Polk Cobra in 6-parallel

  
Hello Polk Audio Cobra/Monitor Audio Super Speaker cable fans!
I have started this blog to share my experiences working with and using these cables since 2015. I do hope that others will also share their experiences to benefit those who just discovered this cable.
You can find a lot of information about these cables at Mr Arthur Salvatore's  http://www.high-endaudio.com .Thank you Arthur.
If you need further information you can contact me by email at polkcobrafan@gmail.com or click  me




Posts online:

Title and contents (this post)
How to remove enamel and terminate Polk Cobra
Comparison of Standard and Shorted Parallel method. 

User guide: Amplifier matching and care instructions.

Three types of Polk Audio/Monitor Audio cable
Contact details
Polk Cobra, Amplifier killer? 
Excerpts from "Speaker cables: Science or Snake oil" by Nelson Pass
DIY Krell CAST interconnects with Polk Cobra
Customers/friends feedback & review page (please comment only if you use/have used/listened to Polk Cobra cables)

Upcoming posts:

  1. Polk Cobra as Interconnects (Ow, come on, they are Speaker cables)
  2. Picture gallery
  3. My 'Cable makes a difference' journey
  4. How did I get bitten by the Polk Cobra?
  5. Cables for sale and services related to Cobra cables
For non-fans: Please note that this is not the forum to argue (endlessly) about whether cables make a difference. Such comments will be deleted without further ado; please visit other forums/blogs that do. My favorite for such is Archimongo's musings.
This blog is under construction...

Comments

  1. RohanAugust 24, 2022 at 3:28 AM

    Hi there,
    I think the fact that these infamous cables now have their own blog is wonderful. I have had one pair (the semi-oval unbranded type) for around 5 years and would never sell them. I have not yet heard a speaker cable which sounds clearer and more transparent to my ears. Following with interest!

    ReplyDelete
    Replies
    1. PolkCobraFanAugust 28, 2022 at 10:51 PM

      Hello Rohan. I like your first sentence; Infamous and wonderful in the same sentence! I will tell my daughter that I have a follower called Rohan. She is an LOTR fan....

      Delete

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Polk Cobra Speaker Cable User Guide (Updated August 2021)

Introduction: These cables are rather special because of the design and manufacturing method that is unlikely to be replicated. ·          So called ‘Litz” speaker cables are easy to find. But unlike some so-called ‘Litz’ cables, Cobra is a true ‘Litz cable’ (not just Litz woven cable). The positive and negative strands are braided together without any Teflon (or similar) insulators. The individual strands are electrically isolated only by enamel (magnet wire or Litz wire). ·          The enameling process is world-class. There is no oxidation almost 40 years after manufacture! ·          A single run of Cobra contains 144 woven strands, 72 strands each for positive and negative! ·          The strands are made of extremely thin high purity copper. This seems contrary to what a speaker cable should be (more suitable for interconnects if one really thinks about it). They look thick due to the enamel. ·          One of the weaknesses (in my humble opinion) of the Cobra desi
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Three Types of Cobra Cables (that I know of) updated 4/Sep/2021

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Three versions of Polk/Monitor Cobra cables The following table summarizes physical and electrical properties of the three versions of Polk Audio, Monitor Audio branded and non-branded (SHF-SP/Super Speaker Cables). Photo 1 : At the Top Monitor Audio (flat ribbon), middle Oval (like USB type C) and bottom Round (Polk Audio) versions.    Names/Labels Polk Audio Cobra or None Monitor Audio Super or None SHF SP Super Speaker or None Picture Photo 1- bottom Photo 1-top Photo 1- middle Cross section Round Flat ribbon Oval (like USB Type C) Sectional diagram Fig 1 Fig 2 Fig 3 Dimensions (mm) (Outer) Diameter 7.3 mm 11 x 2.2 mm 9.8 x 3.2 mm No of strands 12x6 (72) Copper and 12x6 (72) Green Damper Black foam or Clear Silicone rubber
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Polk Cobra, the amplifier killer? Part 1 (updated Mar 2022)

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 Oh my, these Cobras can kill! I just typed 'Polk Cobra Speaker cables' in my google search (31/1/2021) and the got the following results in order of ranking. Arthur Salvatore's high-endaudio blog followed by two (eBay/hifishark) ads and the fourth result was "I hooked up the dreade d Polk Cobra Cables" (my emphasis). Forum comments on Polk Cobra cables are replete with phrases like "amplifier killer", "only suitable for Tube amplifier", "fries your SS amplifier", "be warned", "high capacitance" etc. I will try to debunk this myth that the high capacitance of these cables caused all those failures. I write this post with a foreboding that I am going to get flamed by some 'Polk Cobra experts' and past users. Well, bring it on, my Hifi-Brothers. Cobras did not kill my SS amplifiers, even six of them together! When I got my first 25ft pair of Monitor Audio Super Speaker cables (Polk Cobra, UK version), I was
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