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04-26-2021 Post does not mapped to Knowledge Tree
xandcg


Rio de Janeiro, BR.
Posts 199
Joined on 09-07-2014

Post #: 41
Post ID: 26131
Reply to: 26129
Supra Cables.
Paul,

Not the company I've referenced before (the one I forgot the name) but I just remembered of `Supra Cables` from Sweden. I had a look and their connectors are "24K Gold plated Copper". Apparently they are slightly cheaper (in Europe, about 25 EUR) than DH Labs (in USA); however Supra also sell BULK, what may make them cheaper.

http://www.jenving.com/products/connectors-17

This is their distributor in USA: https://www.sjofnhifi.net/

If you know someone working with import/export you may try to buy FOB. In this case you would probably need to buy more than you need but nothing will hold you to sell them on Ebay later.


EDIT: you may also want to have a look on SineWorld. I don't have idea of their prices and the website don't tell anything about the the material (if copper or what) but their stuff is usually well made.

EDIT_2: based on some of their other connectors (I was looking RCA) the actual conductor is likely to be phosphor-bronze.

Their dealer in America is in Canada.


Cheers! Alex



Think for yourself, do not be sheep.
04-26-2021 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,301
Joined on 10-12-2006

Post #: 42
Post ID: 26132
Reply to: 26131
Planning Vs. Shopping, Sequence
I like to "build things in my mind", then try to see if I can find them ready made. If I can't, I either rationalize a compromise or build it myself. I like to think I would dump fixed notions fast in cases where solid evidence refutes me. Ockham's Razor still cuts both ways.


Paul S
04-26-2021 Post does not mapped to Knowledge Tree
xandcg


Rio de Janeiro, BR.
Posts 199
Joined on 09-07-2014

Post #: 43
Post ID: 26133
Reply to: 26132
Viborg.
Paul,


I found it Viborg, they offer in fact pure copper (non-plated) connectors too. No idea about the price, and they don't have the "chuck locking" the Supra PPSL have.

EDIT: European prices in HERE.
EDIT_2: btw, what is this thing about rhodium?

Cheers! Alex.



Think for yourself, do not be sheep.
04-27-2021 Post does not mapped to Knowledge Tree
drdna
San Francisco, California
Posts 515
Joined on 10-29-2005

Post #: 44
Post ID: 26134
Reply to: 26129
Low mass RCA connectors
 Paul S wrote:
Plenty of people I know hoarded the old, cheap-o Radio Shack connectors, figuring their light weight more than offset the crappy metal they're made of.

Yes, I'm one of them! I love those Radio Shack connectors. It's easy to work with delicate solid wires without heavy connectors bending and breaking everything.  It's my experience that when dealing with silver, copper and other metals, that the amount of the circuit path that is made of a particular metal is proportional to its influence on the sound.  So, those low mass connectors worked just fine.

Adrian
04-27-2021 Post does not mapped to Knowledge Tree
N-set
Gdansk, Poland
Posts 502
Joined on 01-07-2006

Post #: 45
Post ID: 26135
Reply to: 26133
Viborg.
 xandcg wrote:
Paul,


I found it Viborg, they offer in fact pure copper (non-plated) connectors too. No idea about the price, and they don't have the "chuck locking" the Supra PPSL have.

EDIT: European prices in HERE.
EDIT_2: btw, what is this thing about rhodium?

Cheers! Alex.

I've been using Viborg for all DIY cords. Very nice quality. Don't really buy this super pure Cu marketing. Nor rhodium.



Cheers,
Jarek
STACORE
04-28-2021 Post does not mapped to Knowledge Tree
xandcg


Rio de Janeiro, BR.
Posts 199
Joined on 09-07-2014

Post #: 46
Post ID: 26136
Reply to: 26135
Wireworld Pro Audio.
Jarek,

Thank you for your input. This is nice to have a somehow a list of good connectors.

Today I found Wireworld Pro Audio[1] sell "Silver-clad OFC" connectors (they call plugs). I never had any contact with Wireworld products but their products seem well made; however, apparently, no RCA (perhaps not advertised). Also, I failed to find prices on the internet.

EDIT: Well, the regular Wireworld also advertise connectors.
EDIT_2: Their have their own store but just available in USA, but I used some proxy and had a look on connectors prices, they vary. RCA cost from US$12 to US$60 and they don't put all specifications; however they tell what Wireworld cable use that plug, and looking on the cable specification (apparently, this is not very clear) they all have copper conductors, some plated with silver others with gold.

May be a good deal for those living in USA.


[1] roughly same "audiophile" Wireworld but for professional audio.

Best regards,
Alex.



Think for yourself, do not be sheep.
04-28-2021 Post does not mapped to Knowledge Tree
N-set
Gdansk, Poland
Posts 502
Joined on 01-07-2006

Post #: 47
Post ID: 26137
Reply to: 26136
Bitching
Everyone's bitching on silver clad Cu. I never bothered to try.



Cheers,
Jarek
STACORE
04-29-2021 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,301
Joined on 10-12-2006

Post #: 48
Post ID: 26138
Reply to: 26137
Part and Parcel of Copper Parts
The thing is, none of these parts are "homemade" (or, VERY few of them are...), rather they are made by people/companies who are all about "manufacturing". It's said that copper just doesn't lend itself to machining or bending (manufacturing), and it starts corroding immediately. That's all it takes, from a manufacturing standpoint, to make "pure copper" a non-starter for parts. The plating on copper parts assumes people don't want to/won't deal with the corrosion, and/or it mitigates wear. I think silver is more friendly, also very expensive. I think there's plenty of mis/disinformation about "pure copper" floating around out there. Like most things these days, it seems parts for connectors come from just a couple manufacturers, and others have their names stamped on the (sometimes slightly modified) generic parts.



Paul S
04-29-2021 Post does not mapped to Knowledge Tree
N-set
Gdansk, Poland
Posts 502
Joined on 01-07-2006

Post #: 49
Post ID: 26139
Reply to: 26138
Red copper
IIRC, Viborg uses what they call red copper, which is probably red brass - a high Cu content brass, quite a bit harder than pure Cu. Visually and under a few strokes of a metal saw (I wanted to check if this is not a plating) behaves indeed like a 'hard copper'. I protect the surfaces I can reach using Paul's method (I 'hate' you for that Paul, takes so much time): jewellery polish (me by hand) - isoprop cleaning - dielectric grease (silicon based DC-4)



Cheers,
Jarek
STACORE
04-29-2021 Post does not mapped to Knowledge Tree
xandcg


Rio de Janeiro, BR.
Posts 199
Joined on 09-07-2014

Post #: 50
Post ID: 26140
Reply to: 26138
No need to build in-house.
Paul,

I don't know anything about the background oft these companies but the fact copper corrode during the building process isn't a drama. Ships hulls are mainly built of steel with the plates rusted during the building phase[1], and this isn't a problem at all but just need inspect the depth of the corrosion and  blast-clean before primer/painting.

Also, the fact the connectors come from a few manufactures doesn't necessary means they are all the same but the same tooling were used. Provided the involved players are not lazy/cheap/crooks this is all about design/specifications/requirements. If you design a custom screw now and bring it to a screw industry in China, it will just take to discuss the price/quantity to have them built to your exactly design/specifications/requirements, often in a few days.

That said, if these companies are so "garage" sized they can't ever do that, because the minimum amount requested by the manufacturer is too high ($) for them, this is another story.


Of course the ability to build in-house bring a lot of advantages since testing the design is a lot of easier and can be done faster, and this is also one of the main reasons "everyone" is in China. This is quite easy to have things bespoke built, tested, and released fast without the need to acquire every piece of equipment necessary to build the final product.


[1] actually usually before since they tends to be stored outside, often for years.



Think for yourself, do not be sheep.
04-29-2021 Post does not mapped to Knowledge Tree
xandcg


Rio de Janeiro, BR.
Posts 199
Joined on 09-07-2014

Post #: 51
Post ID: 26141
Reply to: 26139
Pure Red Copper.
 N-set wrote:
IIRC, Viborg uses what they call red copper, which is probably red brass - a high Cu content brass, quite a bit harder than pure Cu. Visually and under a few strokes of a metal saw (I wanted to check if this is not a plating) behaves indeed like a 'hard copper'. I protect the surfaces I can reach using Paul's method (I 'hate' you for that Paul, takes so much time): jewellery polish (me by hand) - isoprop cleaning - dielectric grease (silicon based DC-4)


If Viborg is following the market standards and I think so, "Red Copper" or "Pure Red Copper" is Cu2O, the first stage of the Copper Oxide. But I don't remember of anything about red copper on Vigorg literature except, may be, on power cables.



Think for yourself, do not be sheep.
04-30-2021 Post does not mapped to Knowledge Tree
N-set
Gdansk, Poland
Posts 502
Joined on 01-07-2006

Post #: 52
Post ID: 26142
Reply to: 26141
Don't really care much
Might be. Honestly I don't care until they sound good. In Paul's construction they do (thank you Paul!)



Cheers,
Jarek
STACORE
04-30-2021 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,301
Joined on 10-12-2006

Post #: 53
Post ID: 26143
Reply to: 26140
Drama vs. Economics
Alex, whatever the standards and/or expectations are for steel plate for ship yards, customers for electrical connectors don't want them to start out corroded, starting at the wholesale/distributor level. So, manufacturers don't want an inventory of their finished products corroding, either, and they go out of their way to be sure this doesn't happen. I don't know the specifics of working with copper for the "hi-fi market", but it's easy to see there's not much in the way of pure copper connectors available, and I suppose this is because it's more profitable to work with and sell copper alloys ("eutectic" copper). Hard to believe there is a profitable yet un-tapped market for pure copper hi-fi connectors.


Best regards,
Paul S
Page 3 of 3 (53 items) Select Pages:  « 1 2 3
   Target    Threads for related reading   Most recent post in related threads   Forum  Replies   Views   Started 
  »  New  Do not touch that used tonearm!..  Tonearm running-in...  Audio For Dummies ™  Forum     7  67636  01-30-2007
  »  New  Any good sounding AES/EBU interfaces out there?..  Better keep with AN cables...  Didital Things  Forum     53  333815  09-17-2007
  »  New  Purist Audio Design vs. Purist Audio Design..  Maybe we need phantom power?...  Audio Discussions  Forum     25  189156  04-06-2008
  »  New  The “Wet and Fuzzy” cable...  The “Wet and Fuzzy” cable....  Audio Discussions  Forum     0  13059  05-09-2008
  »  New  Cable Current Loading..  The Purist’s Problems...  Audio Discussions  Forum     5  30688  05-14-2008
  »  New  Chasing utopian better phono interconnect...  Did I miss something?...  Analog Playback Forum     6  93775  06-05-2008
  »  New  FM and … cables…..  Cables as Sound Shapers...  Off Air Audio Forum     4  34159  04-15-2009
  »  New  The BEST bass cable?..  Dialectic biased cable....  Audio Discussions  Forum     4  35169  04-22-2011
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