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Copper®Harmony RCA Plug - a new breed

I was contacted by KLE Innovations recently to review their entry level RCA connector (plug).

I have no idea why - Maybe due to a blog that I maintain?

Anyhow - I was a little skeptical that the Copper Harmony RCA Plug could significantly better my existing Silver Bullet RCA's, since they share (i.e. visually) very similar design principals.

So I set about planning a testing strategy based on about 30 tracks that, over the years, I have used for auditioning various audio components, who's purchase I was considering.

Well, I didn't even have to wait for the Copper Harmony RCA Plug to burn-in to realize they are something extremely special.

Anyhow - to cut to the chase - the Copper Harmony RCA Plug delivers an exceptional performance which improved upon details, dynamics, imaging, etc... of the Silver Bullet RCA's that I own.

Now, I have not compared the Copper Harmony RCA Plug directly to RCA's that conform to a more "conventional" RCA design, mainly because my Silver Bullet RCA's had already demonstrated their superiority.

So - the Copper®Harmony RCA Plug resolves to a very high level of performance and it is very very quick - perfect for just about any duty in the realm of audio - including their use on digital cables!

Because of their ability to allow the flow of extremely small "micro details" in an audio signal, I believe they would also be ideally suited for use on those turntables that employ a one piece wiring harness - especially when using moving coil cart's.

So if you are interested in the complete review please go to http://www.image99.net/blog/

If you would like more information from KLE Innovations then use the following

o Website – www.KLEinnovations.com (nearly ready)

o Email - KLEinnovations@clubtelco.com

Please note - I have no affiliation with KLE Innovations and was not paid to participate in the review.

I am just very impressed with what I consider to be a stellar product and feel it would be beneficial to share my experience with the members.

Regards...
williewonka
williewonka OP
3,131 posts
 
OK - if the L/R are "out of focus" - then yes, the RCA's will provide cleaner transmission of fine details, so the new RCA's will exacerbate that condition. You'll hear more of it.

If the AV Comcast Box has an IEC plug you could try a better power cable.

Some boxes have the C7 IEC plug like my DVD player - I bought an adapter that converts C7 to C14 (3 pin)and upgraded the cable using more standard C14 IEC connectors

I always start with the power supply and proceed from there.

If it's "plumbed in" there's not a lot you can do without "surgery"

Switching to a less detailed IC as you had indicated might be the cheapest solution - if you can live with that.

Also - If the Mogami's are anywhere near a power cable or source of interference - like digital components - get some space between them.

Regards...
sbrownnw
717 posts
 
I am also going to try to clean my RCA male / female connection points.
yping
351 posts
 
I think the AV comcast box or the channel's source is poor / slightly out of phase or focus and the KLEI Copper Harmony RCAs just exaggerate that...
I would say, not exaggerate but allow more of the AV comcast box or the channels poor/slightly out of phase or focus signal through.

I have not noticed that the Copper Harmony plugs to exaggerate but they do allow of the signal through... that is, more micro harmonics, stage, PRAT, timbre, decay, etc :)

I wonder if a better AC chord will help... highly likely! Do Douglas Connection do power chords? Actually, what has Douglas Connection suggested :)
sbrownnw
717 posts
 
Ok, after some really careful listening, I realized the following:

- I don't know how the KLEI Copper Harmony RCAs are creating such a large (tall and wide) soundstage, but I don't like it. It is either a combination on how the larger soundstage acts in my room (primary and secondary reflections?) or the subdued sound from the all copper RCA connectors (see below), or both.
- I don't think I like copper chassis RCA connectors (or just the KLEI Copper Harmony connectors). They are very clear and resolving but my music and other sources lost their midrange focus and punch.

As a musician for 15 years I've really missed what I had before. I realize how good the Mogami 2549 cable is with 3 different wiring combinations. I picked my Audio Refinement gear for its tube like sound and I think my previous cable configuration really helped with that tube like strong midrange punch and focus. It was not a narrowly focused soundstage, instead, it just sounded right to me.

With this all said, I wonder if there is another RCA connector I should try, or should I just go back to my Neutrik Pro-Fi RCA connectors which get great reviews? I think I am going to stay in the $15 - $20 / pair range and the only other one I see is the Onix 70024 copper chassis gold plated RCA. But does the Onix bring the same subdued lack of midrange punch and focus similar to the KLEI Copper Harmony? Can anyone chime in on this?

TIA!
yping
351 posts
 
Thanking about it a little more, I would say that the KLEI Copper Harmony plugs, and any RCA plug, cannot deliver more than the Source can output but IME the Copper Harmony plugs allow more of the Source signal output through... that is more micro harmonics, stage, PRAT, timbre, decay, etc, which is the Source's musical reproduction :)

Sbrownnw, have you contacted Douglas Connection... what did they have to say!
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