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#402162 - 03/25/14 10:30 PM Dumb question on binding posts
bluray Offline
old hand

Registered: 12/31/07
Posts: 88
I have only used banana plugs in past. Have new cables with spades. When I loosen or remove the clear plastic "nut" through which banana plugs are inserted, there is a round "washer" (with black or red plastic at its circumference). Underneath that is a round, gold-plated base. Do I put the spade in between the nut and the washer or in between the washer and the base?

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#402163 - 03/25/14 10:39 PM Re: Dumb question on binding posts [Re: bluray]
bluray Offline
old hand

Registered: 12/31/07
Posts: 88
OK, I actually read the Axiom instructions and answered my own question. I was very intrigued to see that with bare wire, you go between the nut and washer. BUT… with spades, you go under the washer! Anyone want to venture a guess as to why the difference?

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#402165 - 03/26/14 01:21 AM Re: Dumb question on binding posts [Re: bluray]
nickbuol Offline
connoisseur

Registered: 09/16/04
Posts: 4514
Loc: Marion, IA
The bare wire goes "through" the center of the binding post (there is a hole) and just needs to get "crimped" down by the plastic "nut."

The spade doesn't get the privilege of getting such a solid connection like that so you want as much metal touching metal as possible.

OK. I made up both of those. I am only speculating as to why...
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#402188 - 03/26/14 03:36 PM Re: Dumb question on binding posts [Re: nickbuol]
pmbuko Offline
shareholder in the making

Registered: 04/02/03
Posts: 16289
Loc: Leesburg, Virginia
I think you're right, Nick. Your answer also hints that bare wire can actually give you the best, most solid connection.

Unless you plan on removing and reattaching your speaker wire often, bare wire is the way to go.
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#402191 - 03/26/14 05:04 PM Re: Dumb question on binding posts [Re: bluray]
nickbuol Offline
connoisseur

Registered: 09/16/04
Posts: 4514
Loc: Marion, IA
You are 100% correct Sir. Bare wire IS the best connection unless you disconnect/reconnect a lot.

Wait, did I just call you "Sir?"
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#402192 - 03/26/14 05:19 PM Re: Dumb question on binding posts [Re: nickbuol]
BobKay Offline
connoisseur

Registered: 03/23/10
Posts: 3167
Loc: Massachusetts Badlands
Originally Posted By: nickbuol
You are 100% correct Sir. Bare wire IS the best connection unless you disconnect/reconnect a lot.

Wait, did I just call you "Sir?"


What a great Ed McMahon impression. Well done!
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#402195 - 03/26/14 06:12 PM Re: Dumb question on binding posts [Re: bluray]
Ian Offline
President
aficionado

Registered: 03/13/01
Posts: 808
If you are using 1/4" spade connectors then you want to put them underneath the washer where the post is indented on both sides to stop the spade from turning when you tighten it down. If you are using a 3/8" spade then above the washer will be better so the spade will not move side to side in the indents.
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President & Chief Engineer

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#402209 - 03/27/14 01:21 AM Re: Dumb question on binding posts [Re: bluray]
nickbuol Offline
connoisseur

Registered: 09/16/04
Posts: 4514
Loc: Marion, IA
That makes even more sense. The washer prevents the spade from spinning when tightening the "nut." (lightbulb just went on above my head...)
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M60s, VP180, VP150, QS8s, SVS 20-39PCi, HTPC, JVC RS45, Onkyo TX-NR709, Shakers

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#403295 - 04/18/14 10:26 PM Re: Dumb question on binding posts [Re: bluray]
Boomzilla Offline
buff

Registered: 09/25/13
Posts: 43
The undiscussed variable here is the wire termination itself. If it's soldered, it likely has up to 10x the resistance of bare wire. The only terminations I've found that didn't add resistance are the welded ones of BlueJeans Cable.


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#403389 - 04/21/14 07:55 AM Re: Dumb question on binding posts [Re: bluray]
Murph Offline
axiomite

Registered: 10/05/06
Posts: 6860
Loc: PEI, Canada
Sorry but I don't understand how your chart can try to compare resistance on brand names when they are using different lengths of wire.. That is a big undiscussed variable in your undiscussed variable.
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With great power comes Awesome irresponsibility.

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#403393 - 04/21/14 10:04 AM Re: Dumb question on binding posts [Re: Murph]
ClubNeon Offline
connoisseur

Registered: 02/06/09
Posts: 3448
Loc: Western Maryland, USA
Yeah, there's really too many variables involved. Not only different lengths, but different gauges.

Also when testing how much of an increase in resistance (or impedance) there is from bare wire to terminated wire, the connection point to the test equipment needs to be controlled.
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-Chris

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