Owned all Cerious (Graphene Extreme, not the Matrix) - AES, RCA's, and speaker wire, which I enjoyed very much and preferred to the Anti-Cables they replaced. Heard about Audio Envy, gave them a try, now everything is AE. Listening to the first track after changing everything, the first thought in my head was It's like opening a curtain between the listener and the system. The latest is AE's ribbon speaker wire (SP11), bought about a month ago as longer runs were needed after moving system upstairs, which replaced their SP7. While there are cables like Silversmith and others that pique interest, AE is the end game for me.