Are contact treatments worth the money?


I have been reading some of the claims regarding the benefits of applying contact paste, liquids, etc. to all my connections. It sounds appealing but would like to know your experience with such products. Prices range from $35 to hundreds.
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For those who may be interested in actually "listening" and determining for yourself whether a contact enhancer can make a meaningful difference in your system, the solution is fairly simple. Walker Audio offers a full satisfaction guarantee on their E-SST/SST contact enhancer. Simply try it. If you're not satisfied with the results in your system, return the unused portion within 30 days and Lloyd will refund your purchase price, less shipping. Sure, you're out of pocket the shipping both ways, but otherwise it's a pretty pain-free way to find out for yourself whether a silver contact enhancer will make a meaningful improvement in your system, and be worth the cost, or not.

This was the approach my listening partner and I took. And as I've noted in this thread and elsewhere, the Extreme SST makes such a meaningful improvement in our system that we use it on all contacts and would not consider setting up another component without it. The improved results are consistent everywhere we've done some careful comparative listening both in our system and the systems of several audio friends.

As Aball points out, it's possible that a system will not have the base level of resolution to allow one to hear a further benefit from applying the contact enhancer. I've experienced that with one system we checked out. But that was only one system out of about 10 in which we've shared a comparative listening session with friends. In every other case, both we and the owner of the system heard a meaningful improvement. For several, the improvement was worth the cost and they purchased some E-SST on their own following the listening test. For a few, they heard the difference, but the improvement wasn't worth cost to them. Different strokes, and all that.

My listening partner and I tend to rely on what we hear -- if our ears tell us the sound is different, better or worse, that's what matters to us. If we both hear the same thing, as we usually do, we know we should pay attention. If there is a scientific explanation, that's nice. But, ultimately, we find that irrelevant if we HEAR the difference.

Almarg: I like your comment that "it is much better to have no explanation than to promulgate a speculative one or an incorrect one." Thanks for that observation.
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Mr B- As I stated: Music signals contain much more information than simply frequency, and many components of said signal are not quantifiable(but very audible). If audio(or electrical) connections did indeed provide optimal transmission: contact enhancers could not further affect one's music reproduction, but to degrade it. A multitude of us have observed that they do however improve things audibly(Rushton stated our case perfectly). BUT- If you are satisfied with your connections- Case closed! BTW: While 12AX7s will share the same specs and perhaps even the same transconductance measurements: If you take a pile of them and compare those of different manufacturers, or even various designations(ie: 12AX7/7025/ECC83/ECC803S), or date codes of the same manufacturer, you will find few that are constructed identically, though all are dual triodes. Structural materials, the number of mica supports, cathode coating substances, etc. also vary between manufacturers. Hence: Very few will sound alike.
If audio (or electrical) connections did indeed provide optimal transmission: contact enhancers could not further affect one's music reproduction, but to degrade it, or have no effect on it at all. I think that would be more accurate.

It's o.k. though, I can bang my head against the wall all day. The only result is that you would still spend your $30+ on something that is touted to have a real effect on an electronic system that has negligible effects on the basis of the laws of nature, which is what your system was founded on in the first place.

I am glad to see that the audio salesman who chimed in with a plug for his shop did offer a money back guarantee. That was refreshing. His caveat that your system may not be good enough to resolve the difference with and without the tweek was a bit pathetic (although only in 1 out of 10 times does this happen, so my dear friend and future customer, don't be offended, your system is good enough to be sure).

Sorry for the cynicism, tweeks are accessories. Accessories carry the highest profit margin in the store where you shop. Caveat emptor.
f audio (or electrical) connections did indeed provide optimal transmission: contact enhancers could not further affect one's music reproduction, but to degrade it, or have no effect on it at all
Yes, yes, but the connections are mechanical & flimsy. (Silver) "Conductive grease", which is non-fancy name for the stuff, is used for moving mechanical contacts... it helps with electrical & thermal conductivity.
OTOH, there is a risk of metal migration (silver into the gold plating of the contacts).
See fo example products like this.
I use such a product, cleaning it every 3-4 months (with acetone -- take care not to touch ANY plastic with acetone) & reapplying.
No doubt Walker's products has its unique merits except one: the price. The industrial equivalent, while not cheap, is far more reasonably priced.
Regards
Bicycle_man, no retailer or manufacturer has chimed into this thread. Only various of us who use the products in question.
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