Pure OCC copper VS Silver Coated OCC Copper Speaker ...

The continuous casting process creates one crystal for the entire length of the cable (up to 125 meters), instead of the 1000's per meter for OFC.

Look at the top row of images below.

Every time the signal has to traverse from one of those crystals to another, it is effected by the grain boundary. Each boundary has capacitance, inductance and and a diode effect. Now, multiply that over thousands of boundaries across the length and width of the cable, and there are 1000's of these circuits the signal has to pass through. This effects the signal quality, with relation to time.

I recently got a job in the IT department at one of the leading biotech companies in the US, Amgen. I was working on a computer in a lab that controls a mass spectrometer, and I was wearing an old Audio Research t-shirt, and a scientist (PhD in chemistry and masters in material engineering) working near where I was working, saw the shirt, and started a conversation on audio. He was the one that explained this to me, in layman's terms.

In my opinion, more important than the type of metal, is having an Ohno Continuous Casting (OCC) cable instead of oxygen free. The continuous casting process creates one crystal for the entire length of the cable (up to 125 meters), instead of the 1000's per meter for OFC. Look at the top row of images below. Every time the signal has to traverse from one of those crystals to another, it is affected by the grain boundary. Each boundary has capacitance, inductance and a diode effect. Now, multiply that over thousands of boundaries across the length and width of the cable, and there are 1000's of these circuits the signal has to pass through. This affects the signal quality, with relation to time. I recently got a job in the IT department at one of the leading biotech companies in the US, Amgen. I was working on a computer in a lab that controls a mass spectrometer, and I was wearing an old Audio Research t-shirt, and a scientist (PhD in chemistry and master's in material engineering) working near where I was working, saw the shirt, and started a conversation on audio. He was the one that explained this to me, in layman's terms.

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According to a recent article on WhatHiFi, the debate between pure OCC copper and silver-coated OCC copper for speaker cables boils down to conductivity and corrosion resistance. Silver, being a superior conductor, can provide better signal transfer especially over long distances. However, it is also prone to tarnishing, which can affect longevity. TechRadar also highlighted that while pure OCC copper remains a preferred choice for audiophiles due to its consistency and durability, silver-coated OCC copper may offer enhanced performance in specific setups if maintained properly.