KLEI Copper Harmony RCA Plug

KLE Copper Harmony Phono RCA Plug

Both the four and six pack come with two red and two blue identification collets (rings). Rubber grommets are included.

The KLE Innovations (Keith-Louis Eichmann) Copper Harmony Phono / RCA plug has been redesigned from the original Bullet Plug to overcome metallurgical shortcomings in the original design. The Harmony Plug is a new revolutionary approach to Keith-Louis Eichmann’s (aka KL) previous Bullet Plug design, which itself was a revolutionary approach to the phono plug / RCA connector.

KL believes he has, with this new phono / RCA 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 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 Harmony RCA plug is a further innovation and totally new approach to RCA connection.

Keith Louis Eichmann's new bullet plug design family, Harmony.

The following are the improvements that have made to the Copper Harmony Phono RCA plug design when compared to his previous Bullet Plug design:

• Signal and Ground pins both utilise "KLEI PureCopper™" Alloy with >101% IACS conductivity (not Tellurium Copper 92~95% IACS).
• Signal and ground pins are formed / manufactured to optimise and enhance electron flow, in accordance with KL's proprietary Copper Signal / Ground formula.
• An ultra high purity silver plating is utilised to protect the pins from oxidization.
• Signal and ground pins are now much stronger and shaped like a tag, which makes soldering small / large or multiple wires very easy.
• Signal and ground Anti-Short shield has been added between the signal and ground solder tags.
• Signal and ground pins are arranged to maintain a maximised distance from each other, and the utilised foil technology ensures that capacitive, inductive and EMF effects are minimised.
• The head assembly jaw structure has been redesigned and mechanically improved, to allow an easy snap-like connection to a phono / RCA / cinch socket, ensuring the ultimate connection with easy removal.
• The housing assembly uses two screws to retain and secure the cable.
• Extremely high temperature melting point thermoplastic polymer has been utilised.
• Recommendations: >150hrs burn-in, cable outer diameter sizes from 4mm to 9.5mm.

Copper Harmony Phono RCA Plug.

Comments and Reviews:

Sound: Exceptional resolution, 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 very very low noise / distortion in a warm musical and involving manner from an very very black / quiet background.

KL's testing and reports received, indicate the KLEI Copper Harmony when compared to the Eichmann Copper / Silver Bullet RCA plugs, has noticeably better PRAT, Decay, Timbre and Texture, Edge Control and Extension, Resolution, and Stage. The following quotes are from the many reports that KL has received…

The KLEI Copper Harmony RCA plugs, when compared to the Copper Bullet RCA plugs…

• I tested the KLEI Copper Harmony RCA plugs in mine and a friends system with the same results occurring in both systems…
• There is more energy and more extension in the highs.
• The cymbal work on Keith Jarrett "At The Blue Note" was the best I've heard to date.
• The cymbals 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 Copper Bullets.
• Mids were very neutral compared to the Copper Bullets.

The KLEI Copper Harmony RCA plugs when compared to the Silver Bullet RCA plugs…

• My initial impression, within the first hour of listening) was that somehow, the team at KLEInnovations had discovered some magical metallurgical process in which electrons had been freed from their earthly bonds and allowed to proceed at faster than light speed to their final destination, not that my previous RCA's are slow by any means, but the KLEI Copper Harmony RCA plugs are just that much quicker!
• The detail had significantly improved, together with a noticeable improvement in dynamics and a deeper more spacious 3D image… and it was only going to better?
• The music had more body and was simply more complete! On the upper end of the frequency range the most noticeable improvements in detail and dynamics were conveyed by instruments such as Cymbals, Triangles and Tambourines…
• The initial attack of these instruments is now very crisp.
• The decay of Cymbals and Triangles have extended significantly beyond their previous fall-off point due to the micro detail/resolution now being revealed.
• There was the delightful addition of texture that was previously missing, especially with Tambourines.
• I've used many words that describes what the KLEI Copper Harmony RCA plugs brings to the party… Dynamic, Detailed, Cavernous, Engaging. But I think if I had to describe its outstanding performance in one word — it would have to be Clarity!
• I cannot recall my modestly priced Hi-Fi ever reproducing music with such clarity. Every instrument, every artist, every venue, every album, is being reproduced in a manner that would normally be attributed to spending thousands of dollars on significantly better components! Even my oldest recordings are revealing details I've never before heard. There is also a warmth that was previously missing, which is especially nice for digital playback, creating a more engaging rendition, with what appears to be a much larger sweet spot as a bonus.