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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

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RE: Cardas CCBP Unplated Copper Binding Posts

Posted by kitch29 on January 17, 2017 at 06:34:04:
Unplated copper has the issue of oxidation possibly interfering with the signal which slowly sneaks up on you after a long period. Also true of the Edison Price.

The Pomona Tellurium Copper purports to avoid that problem. I've used them on speakers for years and never seen oxidation. There's also a similar product from the Taiwan outfit Vintage Audio Lab.

Handmade, BTW, is a great under-the-radar source for parts that's been around forever.