Thanks @JimL. In terms of non-DIY more affordable amps would I be right in thinking Mjolnir Audio in Iceland would be my best bet? If so can anyone comment on their range, or what would be a wise minimum entry point for the 007 and 009? I just wandered in there for a demo, I was never at risk of blindly dropping 4k on whatever amp they happened to use to drive the 007/009. Everyone’s feedback has been highly educational. It’s only ever an upside, and one of the great things about posting here.