New Bullet Revolution by Keith Louis Eichmann

»From Copper to Absolute through Silver & Pure models like stairways to sound heaven«

The KLEI™Harmony Phono/RCA Plug is a new revolutionary approach to KL’s (Keith Louis Eichmann) previous Bullet Plug design, which itself was a revolutionary approach to Phono/RCA connection. It represents a wholesale rethinking of something as basic as the venerable Phono/RCA plug; a connector designed over Sixty years ago by The Radio Corporation of America (RCA).

KL’s objectives for improving the humble RCA plug are… improved conductivity, enhanced signal integrity, higher resolution, and improved connection. These objectives are important and significant in critical areas of Electron Charge Flow and Signal Integrity for High Resolution audio performance and requires close attention to all areas of Connector design, as follows…

  • Geometry/Materials/Mass – KL’s (proprietary) Signal/Ground formula/architecture, ensures Optimum mass of Metals and Dielectrics are used to avoid skin effect, maintain structural Strength and Reliability, and minimise Reactive, EF, & EMF effects. Controlling these effects ensures that a complete, full, and extended Signal frequency range, and the harmonics, are transmitted from Component to Component, which further ensures that the listener enjoys a complete, full, extended, detailed, involving, and musical presentation.
  • Metallurgy – we/KLEI do not waste the effort gained in the other aspects of our designs by compromising with metals less conductive than Copper or Silver.
  • Metal Conductivity %IACS (IACS – International Annealed Copper Standard)
    • Silver – >105%
    • Copper – >100%
    • Silver (Machinable) – 92.5% ~ 96%
    • Tellurium Copper (Machinable) – 90% ~ 95%
    • Gold – 65 ~ 75%
    • Aluminum – 60 ~ 65%
    • Bronze – 15 ~ 48%
    • Beryllium (low/high copper content) – 17% ~ 43%
    • Rhodium – 35% ~ 38%
    • Brass (low/high copper content) – 25% ~ 37%
    • Tungsten – 31%
    • Nickel – 24%
    • Palladium – 16%
    • Platinum – 16%
    • Tin – 15%

KLEI™Harmony Phono/RCA Plug Architecture (since Sept 2014, began Feb 2014)

The conductive pins of the KLEI™Harmony Phono/RCA plugs are formed/manufactured using our proprietary high conductivity alloys, we believe having an IACS rating >101%, and even >106%, to ensure the highest levels of conductivity. When compared to a typical gold plated brass connector used in the vast majority of deluxe Phono/RCA plugs, the KLEI™Harmony Phono/RCA plug range, utilizing our proprietary high conductivity alloys, achieves improvements in conductivity exceeding 320%. Proven metallurgical choices result in improved signal transfer and electron flow, which is consistent with high resolution interconnect/digital cables.

Our proprietary high conductivity alloys vs ‘Pure annealed Copper/Silver’…

    • Our Extrapolation, Testing, and Reports, that we have received are confirming and allowing/permitting further evaluation and extrapolation, as follows…
      • Electrically, the proprietary high conductivity alloys utilised in the KLEI™Harmony Phono/RCA plugs are equivalent, and even superior, to ‘Pure annealed Copper/Silver’.
          • Pure annealed Copper/Silver (>=99.9999% purity)… >=100% and >=105% IACS conductivity, respectively.
          • KLEI™Harmony Phono/RCA plugs proprietary high conductivity alloys… we believe >101%, and even >106%, IACS conductivity.
          • Our evaluation is that our KLEI™Harmony Phono/RCA plugs proprietary high conductivity alloys are equivalent, and even superior, to ‘Pure annealed Copper/Silver’…
            • As such, we believe that our proprietary high conductivity alloys can be called PURE and equivalent to 99.9999% pure annealed Copper/Silver.
            • Further, we shall now refer to our proprietary high conductivity alloys, that we believe are IACS >101%, as KLEI™PureCopper or KLEI PureCopper™ or KLEIpureCopper™ or KLEIPureCopper™, and our proprietary high conductivity alloys, that we believe are IACS >106%, as KLEI™PureSilver or KLEI PureSilver™ or KLEIpureSilver™ or KLEIPureSilver™.
      • Mechanically, the KLEI™Harmony Phono/RCA plugs proprietary high conductivity alloys are much stronger than ‘Pure annealed Copper/Silver’ and nearly as strong as the Brass alternatives.
      • Sonically, we believe that the KLEI™Harmony Phono/RCA plugs proprietary high conductivity alloys are therefore superior to ‘Pure annealed Copper/Silver’, especially when designed in accordance with KL’s (proprietary) Signal/Ground formulae.
          • KL’s (proprietary) Signal/Ground formulae produces a purposeful metallurgical relationship between the Signal and Ground/Return conductors which we believe produces a superior Sonic performance, but ‘the proof is in the listening’.
      • Feedback and Impressions are welcome.

Conventional RCA’s are designed with a Metal Collar, which is prone to electron turbulence called Eddy Currents. In addition to this Capacitive Reactance and Micro-Arcing are additional artifacts of the metal collar architecture.

    • To combat this KL opted for a Single Point Ground contact similar to Star Ground/Earth in high-end electronics which in turn eliminates every vestige of Eddy Current Turbulence, Capacitive Reactance, and Micro-Arcing.
    • Further, with the KLEI™Harmony Phono/RCA Plugs design, KL has redesigned the Single Point Ground pin with an optimised shape, mass, and thickness.

Our proprietary high purity silver plating (>106% IACS) is applied directly to the conducting surfaces of the KLEI™Harmony Phono/RCA Plugs pins, as required. This produces the performance/sound characteristics of 4-nines pure silver (>106% IACS) and no additional plating is required to preserve signal quality.

Summary

KL believes he has, with this new KLEI™Harmony Phono/RCA Plug blueprint, solved a series of problems that collectively degrade audio/video performance and that do so in an additive manner. The importance of this innovation and redesign cannot be overstated. Its ramifications extend to every Phono/RCA interface in which high quality signal transfer is an issue. Extensive listening and critical comparisons played a major role in the evolution of the design, confirming at every juncture the audibility of properly applied science in even the area of Phono/RCA connection.

In Summary, the KLEI™Harmony Phono/RCA plug family, which can be viewed as The next Generation of Bullet Plug, is the Sonic culmination of KL’s (proprietary) Signal/Ground formulae when applied to the metallurgical relationship between the Signal and Ground/Return conductors. The Sonic results are the KLEI™Harmony Phono/RCA plug family, beginning with the KLEI™Classic Harmony Phono/RCA plug through to the KLEI™Absolute Harmony Phono/RCA plug, which is the highest Sonic performer of the family.

KLEI™Harmony Phono/RCA Plug Range/Specs

Innovations, Refinements, Specifications, and Comparisons are as follows…

    • KLEInnovations(KLEI)… Classic Harmony
      • The Signal/Ground pins utilise KLEI™PureCopper (not Tellurium Copper (92%~95% IACS) or Brass (28% IACS) (please refer to the KLEI™Harmony Phono/RCA Plug Architecture, above).
      • The Signal/Ground pin optimization has been utilised to enhance electron flow, and designed in accordance with KL’s (proprietary) Classic Signal/Ground formula.
      • The Signal/Ground pins finish utilises an ultra high purity Silver finish which is formed, in accordance with KL’s (proprietary) Classic Signal/Ground formula, as an integral part of the pins construction, and also helps protect the pins from oxidization.
      • Our testing, and reports received, show that the KLEI™Classic Harmony has excellent PRAT, Decay, Timbre and Texture, Edge Control and Extension, Resolution, and Stage.
    • KLEInnovations(KLEI)… Copper®Harmony
      • The Signal/Ground pins utilise KLEI™PureCopper (please refer to the KLEI™Harmony Phono/RCA Plug Architecture, above).
      • The Signal/Ground pin optimization has been utilised to enhance electron flow, and designed in accordance with KL’s (proprietary) Copper Signal/Ground formula.
      • The Signal/Ground pins finish utilises an ultra high purity Silver finish which is formed, in accordance with KL’s (proprietary) Copper Signal/Ground formula, as an integral part of the pins construction, and also helps protect the pins from oxidization.
      • Our testing, and reports received, show that the KLEI Copper®Harmony when compared to the Silver Bullet RCA plugs, has noticeably better PRAT, Decay, Timbre and Texture, Edge Control and Extension, Resolution, and Stage.
    • KLEInnovations(KLEI)… Silver®Harmony
      • The Ground pin utilises KLEI™PureSilver and the Signal pin utilises KLEI™PureCopper (please refer to the KLEI™Harmony Phono/RCA Plug Architecture, above).
      • The Signal/Ground pin optimization has been utilised to enhance electron flow, and designed in accordance with KL’s (proprietary) Silver Signal/Ground formula.
      • The Signal/Ground pins finish utilises an ultra high purity Silver finish which is formed, in accordance with KL’s (proprietary) Silver Signal/Ground formula, as an integral part of the pins construction, and also helps protect the pins from oxidization.
      • Our testing, and reports received, show that the KLEI Silver®Harmony when compared to the KLEI Copper®Harmony has noticeably better PRAT, Decay, Timbre and Texture, Edge Control and Extension, Resolution, and Stage.
    • KLEInnovations(KLEI)… Pure®Harmony
      • The Signal/Ground pins utilise KLEI™PureSilver (please refer to the KLEI™Harmony Phono/RCA Plug Architecture, above).
      • The Signal/Ground pin optimization has been utilised to enhance electron flow, and designed in accordance with KL’s (proprietary) Pure Signal/Ground formula.
      • The Signal/Ground pins finish utilises an ultra high purity Silver finish which is formed, in accordance with KL’s (proprietary) Pure Signal/Ground formula, as an integral part of the pins construction, and also helps protect the pins from oxidization.
      • Our testing, and reports received, show that the KLEI Pure®Harmony when compared to the KLEI Silver®Harmony is Simply… Faster, Quieter/Noiseless/Blacker Background, and more transparent, and has noticeably better PRAT, Decay, Timbre and Texture, Edge Control and Extension, Resolution, and Stage.
    • KLEInnovations(KLEI)… Absolute®Harmony
      • The Signal/Ground pins utilise KLEI™PureSilver (please refer to the KLEI™Harmony Phono/RCA Plug Architecture, above).
      • The Signal/Ground pin optimization has been utilised to enhance electron flow, and designed in accordance with KL’s (proprietary) Absolute Signal/Ground formula.
      • The Signal/Ground pins finish utilises an ultra high purity Silver finish which is formed, in accordance with KL’s (proprietary) Absolute Signal/Ground formula, as an integral part of the pins construction, and also helps protect the pins from oxidization.
      • Our testing, and reports received, show that the KLEI Absolute®Harmony when compared to the KLEI Pure®Harmony is Simply… even Faster, even Quieter/Noiseless/Blacker Background, and more transparent, and has noticeably better PRAT, Decay, Timbre and Texture, Edge Control and Extension, Resolution, and Stage.
  • Further optimization of mass and thickness of the Signal/Ground pins, in accordance to KL’s Copper, Silver, Pure, Absolute, and Perfect Signal/Ground formulas, to enhance electron/energy flow.
    • Although the Copper®Harmony is capable of transferring extremely detailed Musical information with very high Resolution, further analysis of Electron Transmission theories (eg. skin effect, to name one of many aspects) revealed that even better/higher performance can/could be attained utilising even higher conductivity alloys.
    • The Signal and Ground must be in harmony with each other, hence the name (Harmony), and this is why KL’s (proprietary) Signal/Ground formula is very important, re each Harmony model.
  • Further rejection of the idea of using a formed metal collar Ground to encircle the centre Signal pin, which KL has replaced with a new Ground pin.
  • The Ground pin creates single point star earthing/grounding which eliminates eddy current distortions, capacitive and inductive reactance, and micro-arcing.
  • The Ground pin includes thread teeth to ensure that if a conductive Housing, ie metal/carbon fibre/etc, is utilised it is star-point grounded.
  • The Signal/Ground pins are now much stronger and now shaped like tags, which makes soldering small/large/multiple conductor wires to them… very easy.
  • A Signal/Ground Anti-Short shield has been added between the Signal/Ground pins.
  • The Signal/Ground pins are now arranged to maintain a consistent maximum distance from each other, using foil technology, which further improves capacitive and inductive reactance effects and minimizes the cross-talk EMF effects that occurs in all other Phono/RCA plugs.
  • The Head Assembly jaw structure has been redesigned, and mechanically improved, to allow an easy snap-like connection to a Phono/RCA socket, ensuring an ultimate connection without damage to the Phono/RCA socket.
  • The Housing now uses 2 screws to secure the cable sheath to the Harmony®Plug housing.
  • Extremely high temperature melting point thermoplastic polymer is used, with excellent electrical and mechanical characteristics, which easily adjusts to your Phono/RCA socket to provide a secure snap-like fit that is easy to disconnect.
  • Having a significantly higher characteristic impedance than conventional RCA plugs makes the Harmony®Plug an ideal connector for Digital Interconnects requiring RCA connectivity in either 50, 75 or 110 ohm applications. Due to the high conductivity rating of the materials used for the conductors in the Copper Harmony, JITTER may/will be significantly reduced.

Burnin/Cooking Time

We believe that the Burnin/Cooking process can be thought of as an extension/finishing of the Annealing process 🙂

This is a practice that can dramatically/drastically improve performance and has been gaining acceptance from HiFi enthusiasts 🙂 Usually, any listener will be able to identify a marked change/improvement in audio component performance within the first 100 or more hours of use, whether it be a cable, connector, component or loudspeaker.

Burnin/Cooking time is the process whereby electrical signal/charge gradually settles/corrects/aligns dielectric, electromagnetic, and material (metal and non-metal) issues that occur/result during the construction process. These aspects are often and usually found in Cables/Connectors and usually results in a brittle, bright, muddy, non-cohesive sound that lacks the Detail, Resolution, Timbre, PRaT, Harmonic Texture, Organicness, Naturalness, and Staging which is desired for music reproduction. Burnin/Cooking Time improves the way that signal passes through the conductors and dielectrics and it is the resulting changes in signal transmission that refines and defines the performance of the audio cables.

While it is most important to implement Burnin/Cooking Time, upon purchase, routine maintenance is always important, also. Cables/Connectors that have not been played, or left unused, for long/prolonged periods of time, may become stagnant and again require Burnin/Cooking Time.

Settling Time

Settling Time is the continuous playing time since the ICs have been reconnected/replugged, after the ICs have been unconnected/unplugged between 2 components, then reconnected.

Vigorously moving/bending the ICs may even require a fresh period of Settling Time.

Cleaning

We strongly recommend against any tampering (ie polishing/sand papering/filing/etc, and ask that it not be encouraged under any circumstance) as the KLEI™Harmony Phono/RCA Plugs have been meticulously designed to very tight tolerances and any tampering may degrade the performance. We believe that cleaning with a soft bristle tooth brush and non-abrasive/non-residue cleaner is sufficient.

Link to KLEI website

Here are our impressions and conclusions of using KLEI Harmony RCA plugs with WAY Cables interconnect range, which have become an integral component.

First, we must say that KLEI RCA plugs gives a new sound dimension. If we are always talking about quality of 3D stereo image, etc, now we can start conversation about fourth dimension of Hi-Fi sound. Listening experience with KLEI connectors are really unique, new and refreshing. They are not just “parts” or “accessories”, as people commonly say!

KLEI Harmony RCA plugs are Hi-Fi equipment, with equal importance to the final sound result, to any other link in the system.

The KLEI product range of Harmony plugs, from Copper to Absolute through Silver & Pure models is like stairways to sound heaven. Same character but each model has more virtues and abilities.

When we first read description of Harmony series sound features, we thought it was a little too much but now we can confirm that every word is in the right place, exactly as constructor Keith Louis Eichmann (aka KL) have written.

Exceptional Resolution, Extremely tight non-bloated deep/detailed/resolving Bass, Extremely articulate presentation, Conveys subtle nuances with amazing dexterity, Stage is spacious and envelopes the listener, Allows the full emotion of the music to be experienced, Superb dynamics and an excellent micro detail presentation, Displays delicate upper mid and high frequency detail/resolution and harmonic texture with precision and emotion, Delivers music with extremely low noise/distortion in a Warm Musical and Involving manner from an very very Black/Quiet Background.

Due the same philosophy of uncompromising product quality and commitment to fair market values in today superficial and frivolous world, WAY Cables wish to congratulate KL for new revolutionary inventions in Hi-Fi and to strongly recommend using the KLEI Harmony Phono/RCA plugs.

WAY Cables have the honor to be KLEI partner and sales representative.

Klei copperr harmony RCA plugs recommendation by AlanYou are opened my eyes and made me believe what good connectors means. Of course, I read something about it, but audiophiles simply have to hear. My choices are KLEI copper plugs. Thank you for a nice price and quick delivery.

Mr Alan EU, September 13, 2015


 

Klei-silver-harmony-recommendation-antunDear Miroslav, I want to tell you that successfully arrived my order of KLEI Silver and I am so happy! Your partner in Split is really professional guy. I am especially pleased how KLEI is easy to install on the cables and how they work great despite the fact that they not reached the recommended burn-in period.

Thank you once again! All the best in New 2015 and kind regards from Split!:-)

Antun Ivic Split, December 31, 2014


 

Klei-silver-harmony-recommendation-johnyI am from Serbia (Vojvodina) but I will try to write my impressions on English with wish that all Hi-Fi enthusiast will understand me well. I bought KLEI Silver Harmony connectors and made my DIY cables with silver and copper litz wires. When I compared them with few of  my other cables of respectable manufacturers, I was shocked how my branded cables sound average. I can only imagine how KLEI connectors play with really superior cables but I am very satisfied with my new sound attributes thanks to Silver Harmony plugs.

Best regards, Nikola Savkov


 

KLEI-feedback-LJUBA-kgPreporuka ko vrata! Uzeo sam bakarne ali ja videh samo srebro na njima :) Ispoštovao sam preporuku da se usviravaju 150 sati. Bas se spušta dublje, srednji režu prostor, brzina 2x veća nego što je bila, prostor bolji. Meni je to važno, jer sam ljubitelj žešće muzike. Famozan učinak na mojim prosečnim, ali sada daleko boljim VDH D102mk3 kablovima koje sam koristio sa lošim kineskim WBT replikama. KLEI je čudo neviđeno. Imam u planu da uzmem još jedan komplet. Hvala ti što si ih doveo kod nas i što nisam platio više nego da sam kupovao na ebay-u. Hvala i za parče kalaja sa srebrom što si mi poklonio uz činčeve.

Pozdrav od Ljube iz KG

4 pcs set KLEI COPPER Harmony RCA/Phono plugs: € 70,00

4 pcs set KLEI SILVER Harmony RCA/Phono plugs: € 90,00

4 pcs set KLEI PURE Harmony RCA/Phono plugs: € 120,00

4 pcs set KLEI ABSOLUTE Harmony RCA/Phono plugs: € 150,00

MUST be sold in their original packaging and as they were originally purchased, ie 4 pack.

 

Comparison table KLEI Harmony RCA / Phono plugs

COPPER

RCA / Phono plugs
70/per 4 pcs
  • Signal contact and Single Point Ground pin from KLEI PureCopper™ with >101% conductivity and KLEI PureSilver™ high density plating with >106% conductivity
  • Housing from high temperature melting point thermoplastic polymer with excellent electrical and mechanical characteristics
  • 2 overside screws to secure the cable with housing
  • Ultimate connection without damage to the Phono/RCA socket and easy to disconnect
  • For cable outer diameter sizes from 4 to 9.5mm
  • Recommended burn-in more than 150 hours

SILVER

RCA / Phono plugs
90/per 4 pcs
  • Signal contact from KLEI PureCopper™ with >101% conductivity and KLEI PureSilver™ high density plating with >106% conductivity Single Point Ground pin from KLEI PureSilver™ with >106% conductivity
  • Housing from high temperature melting point thermoplastic polymer with excellent electrical and mechanical characteristics
  • 2 overside screws to secure the cable with housing
  • Ultimate connection without damage to the Phono/RCA socket and easy to disconnect
  • For cable outer diameter sizes from 4 to 9.5mm
  • Recommended burn-in more than 175 hours

PURE

RCA / Phono plugs
120/per 4 pcs
  • Signal contact and Single Point Ground pin from KLEI PureSilver™ with >106% conductivity
  • Housing from high temperature melting point thermoplastic polymer with excellent electrical and mechanical characteristics
  • 2 overside screws to secure the cable with housing
  • Ultimate connection without damage to the Phono/RCA socket and easy to disconnect
  • For cable outer diameter sizes from 4 to 9.5mm
  • Recommended burn-in more than 200 hours

ABSOLUTE

RCA / Phono plugs
150/per 4 pcs
  • Signal contact and Single Point Ground pin from Higher spec KLEI PureSilver™ with >106% conductivity
  • Housing from high temperature melting point thermoplastic polymer with excellent electrical and mechanical characteristics
  • 2 overside screws to secure the cable with housing
  • Ultimate connection without damage to the Phono/RCA socket and easy to disconnect
  • For cable outer diameter sizes from 4 to 9.5mm
  • Recommended burn-in more than 200 hours

YES, I want to order KLEI plugs!

15 + 10 =