I had SR Au79 ICs and Tesla Quad (specially QTd) SCs in my system for a few months. They were good but, like all cables, dependent on the other components, plugs and tweaks in my system to maximize their potential. Synergy is everything. I have recently been doing a serious upgrade to my system and needed to go up the SR ladder to maximize my system's potential -- but the high silver content in the top SR cables posed compatibility problems with my new speakers whose maker does not recommend high content silver cabling. So I switched to Gabriel Gold Reflection PC, ICs and SCs while keeping a Master Coupler DIY-terminated with Oyaide plugs and IECs for my sub and for the connection from my amp to step-down transformer. As I say, synergy is everything. The Gabriel Golds sound absolutely wonderful in my system -- low level detail with warmth, dynamics, sound stage. I will soon be adding an SR PowerCell 10SE to put the icing on the sonic cake. No buyer's regret about changing from SR to Gabriel Gold.