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Siltech Silver-Gold Alloy

The conductor, one of the most important parts of a cable, has numerous important properties influencing sound quality.

By analyzing magnetic and electric crystal barrier properties Siltech’s engineering group found that contaminants of certain metals have a profound effect on musical performance. Quite large amounts of certain materials can be rather benign, while even tiny amounts of others can be extremely intrusive, damaging a natural sound.

Siltech Silver-Gold Alloy
The gold atoms naturally displace contaminant particles and fill any voids in the silver crystal matrix.

At Siltech we learned early on that the specific identity of any alien matter in our conductors was of vital concern, leading us to develop our revolutionary Silver-Gold alloy. This compound mixes a tiny amount of gold with the silver; the gold atoms naturally displace contaminant particles and fill any voids in the silver crystal matrix.

The result is a greater material consistency with dramatically reduced distortion, significantly improving both the performance and longevity of our conductors. Furthermore, the flexibility of the metal is considerably enhanced. All of these factors combined guarantee top performance (even with heavy use as it happens in recording studios).

Siltech Conductors

Siltech was founded in 1983, its name an abbreviation of “silver technology”. Since then, the metals used in the conductors have been central to the company’s design ethos – and performance advantage.

We have developed Silver-Gold alloys since the nineties of the previous millennium and these ongoing improvements have led to perfecting the technology further.

At Siltech, each successive generation of its metallurgy was given a number.

G1 referred to the 99.99% pure solid silver wire found in the first cables. Silver boasts the best conductivity of any metal and, unlike copper, doesn’t degrade over time – indeed it actually improves. That’s why it is ideal for audio applications.

In 1988, G2 silver was introduced to the Siltech range, offering a longer crystal length. This reduced the number of gaps between the silver atoms, improving the wire’s electrical characteristics and therefore sound. This conductor was improved in 1993 with the addition of 24k gold wires to the existing silver ones.

G3 saw the first Siltech silver-gold alloy conductor. Released in 1997 with the launch of the first Classic range, it proved hugely successful. By injecting gold atoms near the crystal boundary of the silver conductor, boundary distortion was dramatically reduced to 20% of the original amount. These micro-cracks were later lessened to 10% by refining the process, and the technology formed the basis of the Classic Legend conductors used today.

The fourth-generation G4 metallurgy was a special silver-gold alloy used for recording studio cables where mechanical strength is very important.

It was followed by G5, which appeared in the Classic Mk2 cable. This was a further refinement of the melting process that reduced boundary errors to less than 1%, which in turn noticeably improved the sound of all cables that used it.

Launched in 2006, G6 saw a further boundary error reduction of 0.1%, thanks to the new Siltech Advanced Thermal Treatment (SATT) process. This special heat treatment technology increased conductivity by rearranging metal molecules at high temperatures. A high current pulse improves the metal grid before the insulators start to melt.

G7 was developed in 2013, further refining Siltech metallurgy and continuing to offer superior performance to competing conductors. In the case of G7, the highest selection was reserved for the more costly cables. We still employ G7 for all our Classic Anniversary and most Royal Signature products today.

Although we first developed Silver-Gold alloys nearly thirty years ago, we have continued to evolve and further improve them. With G7 being so close to perfection, it has been very difficult to improve on that. For this main reason, it took a long time to make a better version of this particular alloy.

G9 is the latest Silver-Gold alloy generation developed by Siltech’s metallurgists over a period of 12 years. Compared to previous generations, purity and distortion are improved. Launched in May 2021, the Classic Legend Series employs G9 – this 9th generation of Siltech’s proprietary silver-gold alloy with up to 2 times larger conductors than previous generations.

Every silver-gold wire from the first generation G3 to the latest G9 is pure and solid thus ensuring a very long lifetime of audiophile performance.

All Siltech Silver-Gold alloys (an alloy means a mix of two or more metals) do have positive aging. In other words, electrically, the wires improve over time, even when not playing music. Moreover, distortion reduces over the years, continuously improving sound quality. These special properties are unique to Siltech. Positive aging is also a major competitive improvement over other technologies that suffer from degradation over time.

Regarding break-in, G9 reduces breaking-in time to 50-100 hours on average.

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