Contact Enhancer Deterioration


I had been impressed with the initial application of both Walker Audio and Quicksilver contact enhancer products. There is an immediate increase in clarity, extension, and dynamics. The effect was not subtle.

However, I am now convined that over the ensuing weeks to months, the enhancer becomes detrimental. It happens gradually, so it is not obvious. The sound becomes soft, diffuse, veiled. Removing the enhancer with some alcohol has brought things back into focus.

One last experiment was whether this detriment was just due to loose connections or tight connections. For example, it has been postulated that these enhancing material form a bonded and continuous surface. Power cable connections, while they seem to be quite stable, are always moing due to vibration and expansion of metals. This will create cracks in any polymerized material. However, items such as fuses and speaker cable spades tend to be more stable due to the connector pressure and location. Would these surfaces also benefit from removing the enhancer? The answer is yes.

For those of you who are using contact enhancers, I urge you to remove this and listen to your system again. Feel free to report your findings. If anyone has any other experiences, that would be good to hear. If someone feels that there is a particular place that benefits from a contact enhancer long-term, I'd be interested. It seems that the conservative thing to do is to clean your contacts, particularly if they are prone to oxidation.
rtn1
I've been following this thread with interest because it simply does not track with my experience.

I use Walker Audio Extreme-SST (E-SST). I note that some other posters say they've also used E-SST, but my experience is that connections I've treated and left undisturbed have not deteriorated a year later when I've pulled the connection, cleaned it, and re-listened to it bare.

A year later, the sonics of the year-old treated connection listened to critically just BEFORE pulling and cleaning have always been better. When I re-treat with E-SST, the improved sonics return. It's very consistent.

And, the improvements in resolution, harmonic accuracy, and soundstaging that come from a very thin application of E-SST are significant to my ear. So, after more than six years using SST, I stay with it for all of my metal-to-metal connections.

FWIW, in cleaning the connections in my system, I use 97% pure isopropyl alcohol and/or Kontak. Then a very thin application of E-SST. For those using Caig DeoxIT as a cleaner, I suggest you experiment by rinsing with 97% or more pure isopropyl alcohol before making the connection or applying a preservative/enhancer. In my listening, the DeoxIT leaves a sonic signature unless rinsed.

One thing I've always found interesting about this hobby is that we all do have different experiences to share and I continue to learn from everyone here. I don't doubt that Rtn1 is reporting correctly what he's heard in his system. My contrary experience just continues to reflect the need for each of us to experiment in our own systems and trust our ears.

Best wishes for good listening!
I have a totally non audio confirmation for the value of contact cleaners; thirty years age my then father-in -law was a advanced hobbiest in very small , very high quality model trains. He had a problem with their electric engines losing contact with the track, they would sit motionless instead of moving. When he treated his track with the contact cleaner I was using the problem vanished. It was the one that came in two small bottles, one red and one blue , one the cleaner and the other the preservative. I think it was called Contact of Kontact, I don't know if it is the same as that mentioned above. Also my technician friend, who says he is no audiophile, has hoarded some cleaner no longer on the market due to regulation and says the uses it very often to solve problems with equipment. He has been in audio repair over 30 years.
I believe Caig, Kontak, etc., all have Stabilant 22 as a base.
Does anyone have more info on this?