Furutech GTX-D Rhodium NCF Outlet

marty

Active Member
Apr 20, 2010
1,107
1
38
Far Hills, NJ
#41
Oh that is a shame! Have eaten at Taverne du Passage previously and the moules were excellent. Thanks for putting the other two restaurants onto my radar.
You guys don't know how good you have it. Belgians are inherently foodies and the choices of good restaurants are almost limitless. And of course, there are more chocolate shops per square kilometer than there are Starbuck's in Seattle. Now add to that list, one of the most extensive beer selections in the world and honestly, I have no idea how anyone manages to go to work at all!

Went to hear a piano/organ recital last night at Bozar. Le Boeuf hall is a beautiful sounding, medium sized hall with an impressive, newly renovated monumental organ (as of September!). Looked at the season concert schedule and it's darn impressive including some great organ recitals, classical, world music and jazz. Lovely city with this gem of a music venue.
 

DaveC

[Industry Expert]
Nov 16, 2014
2,175
0
0
#42
There seem to be 3 main players in the world of top end silver connectors for audio (XLR, RCA and outlets).
Two of these are surprisingly, Australian. Both Bocchino and ETI Research both use silver plated copper.
http://www.eti-research.com.au/kryo-xlr-connector/
http://www.bocchtech.com/bocchinoaudio/baxlr.htm

However, only Stealth offers solid silver connectors and outlets, and naturally claims they are superior to silver plated copper. Or as Serguei Timachev told me "If Bocchino (or anyone else’s) RCAs and/or XLR connectors (and spade lugs) were good enough, we would have simply used them with our cables, instead of going into the great troubles of designing and making our own."

I've got some Bocchino XLRs on order and have the ETI research XLRs in house ready to try on my Masterbuilt Ultra interconnects. (BTW, The founder of ETI research is the guy who made the famous Eichmann bullet silver connectors widely used for tone-arm cable).

I honestly have no idea which one of these 3 is "the best" (if there is such a thing). But I know this. I am currently on Sablon Square in Brussels and can tell you that as a result of some guidance by my Belgian hosts, the best chocolate here is made by Pierre Marcolini (which can't be bought outside of Belgium). It's funny to see that the Belgians look upon other pretenders such as Godiva, Leonidas, Neuhaus and most others with the same disparagement that audiophiles have when they look down on Bose!

Meanwhile, no money for audio for a while. I've got a damn suitcase full of Marcolini chocolate to take home instead!


IMO, WBT makes the world's best connectors. Their platinum plated silver RCA plugs and speaker connectors are the best, nothing can touch them imo. The closest to no connector you're going to get. Unfortunately they don't make XLRs, or AC connectors out of their platinum plated silver.

I'm open to an AC receptacle beating the Furutech NCF, but I seriously doubt anyone will. The NCF material is a massive advantage no amount of metallurgy is going to overcome.
 

DaveC

[Industry Expert]
Nov 16, 2014
2,175
0
0
#46
Why are silver or silver plated contacts in open air a good thing? I would think corrosion would occur within the first year.
Yeah, I agree in theory and most of the time this does happen. However, I do have a couple of silver items that do not corrode... silver plated mil-spec wire and Xhadow RCA plugs. Both are silver plated and not pure silver, and they don't corrode for whatever reason. UPOCC silver wire corrodes very slowly, it takes a few years in my environment for it to turn completely black while regular silver wire corrodes much more quickly. I think the lack of grain boundaries in OCC wire seals it to some degree, but eventually it does corrode.
 

ack

VIP/Donor & WBF Founding Member
May 6, 2010
5,140
6
38
Boston, MA
#47
The Xhadow RCA and XLR are used by MIT in their top lines, and indeed they don't corrode. They are top shelf connectors, sonically and from an engineering perspective
 
May 22, 2015
383
0
16
#48
I used Xhadow connectors for a number of years on my pre-Reserva generation of signal cables and have seen plenty of examples of oxidisation. That is not meant as a slight on the brand, since it is inevitable for silver to oxidise, and it can be easily wiped off with a silver cloth. The humidity of the domestic environment will also play a part in how quickly this happens. Candidly, I would be more concerned about a silver contact not oxidising since that could imply the presence of some kind of surface coating.
 

marty

Active Member
Apr 20, 2010
1,107
1
38
Far Hills, NJ
#49
There have been some interesting recent posts regarding plated terminations in audio. For example, I had no idea WBT offered platinum plated silver connections until Dave brought this to our attention. I also didn't know Xhadow was the source of the connectons used my MIT. I must admit, I've not really seen any obvious changes color in those connectors on my SHDs when I had them, but the issue of silver oxidation and conductivity drove me to the literature for a few hours of homework. For what it’s worth, here’s where I’m at regarding some of these issues.

1) What’s the story with silver oxide? Does it really have excellent conductivity?

To begin, one of the bigger misconceptions is that silver readily oxidizes. Actually, it does not and this is widely cited. Most of the literature I found supports the idea that silver does not oxidize readily at room temperature, although it is indeed more reactive than gold. As far as the conductivity of silver oxide, there’s no definitive answer to this question that I can find. Much to my astonishment, I found that none other than John Curl asked the same question on a few forums over 20 years ago and never received a good answer! One of the likely reasons is because there is no good conductivity data for “silver oxide” as it really depends on which metal silver is reacting with when it tarnishes. When silver does tarnish in air, the most common reaction is with sulfur, thus forming silver sulfide, which everyone agrees is not a great conductor. Silver aggressively reacts with hydrogen sulfide, a gas that naturally occurs and also comes from cooking eggs (even fresh) and from the car exhaust. If you have none of these sources in your area, or if you don’t fart a lot near your audio gear, then your silver plated connectors will likely stay shiny for quite some time.

There’s also quite a literature on “doping” silver with various metals to improve its resistance to oxidation. In that area, it seems palladium and not platinum is the preferred metal, but doping is not the same thing as plating, so these results are probably irrelevant for our purposes.

Of course, none of this answers the obvious question as to what material sounds best. Most of the time, users will have little choice as the type of connectors will be determined by the cable manufacturer; i,e, Cardas prefers rhodium over silver plate over copper; MIT uses the Xhadow silver-plated over gold; Masterbuilt uses Furutech rhodium plate over gold; Bocchino and ETI use silver plate over gold; Stealth uses pure silver and the list goes on. However, if you are really insane, have nothing better to do or have a serious DYI audio disorder, have fun and play with these and let us know what you learn!
 
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