Home / Reviews / KLEI™Copper Harmony plug (vs Eichmann Copper Bullet plug) by John Withem (JW Audio)
KLEI™Copper Harmony plug (vs Eichmann Copper Bullet plug) by John Withem (JW Audio)

KLEI™Copper Harmony plug (vs Eichmann Copper Bullet plug) by John Withem (JW Audio)

The next generation Eichmann Bullet plug design

The following is a review/comparison of the KLEI Copper®Harmony plug and Eichmann Copper Bullet plug by John Withem (JW Audio)… 

Yes, I have tested the KLEI Copper®Harmony plug against the Eichmann Copper Bullet plug.

I made an IC with the new KLEI Copper®Harmony plugs and one with the older Eichmann Copper Bullet plug, and the KLEI Copper®Harmony plug was a great improvement.  I also took it to an audiophile friend of mine and tested in his system with the same results.

  • There is more energy and more extension in the highs.
  • The symbol work on Keith Jarrett “At The Blue Note” was the best I’ve heard to date.  The symbols sound as though they were in the room… Amazing 🙂
  • Attack is better throughout the whole bandwidth.
  • Bass was forceful but very clean and high energy.
  • Focus was excellent, imaging was also top notch.
  • Soundstage was open and airy, a bit larger than the Eichmann Copper Bullet plugs.
  • Mids were very neutral compared to the Eichmann Copper Bullet plugs.

Hope I have answered your question fully and I know you test you products very well, but I have a vast amount of audiophile friends and systems from $5000 to $80,000.  I would be honoured to beta test anything new you have to offer.  Just a thought…

John Withem (JW Audio)

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One comment

  1. Realize the Organic Realness in the Musical experience, with KLEI 🙂

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