Well, in my case, the recent RR2150-driven upgrade cost about 3x what I had previously, but the result is easily 10x better. Just acquired the last piece of the puzzle—a custom-made SonoSilence One passive preamp—today. I must say that as cool as it is to hear what my fellow Outlaws are going through, it's going to be such a relief to stop thinking about all this stuff and just sink into listening.