Cryo Treating Silver Cables?

HiFi Tuning has had great success with cryo treated fuses made of pure silver.

I have two cryo treated silver cables -- one USB, one phono pair -- and I think they are very good-sounding. I can't say anything about the purity of the USB cable, made by Audiogoner Acreyes, but the phono cable, from Audio Sensibility in Toronto, is OCC silver FWIW.

Zmanastronomy: It might be more accurate to say that
HiFi Tuning has had great success MARKETING cryo treated fuses made of pure silver.