Thanks Dan,Yes I can confirm that din-din(naim) is better than rca-rca(chord anthem1).As I've read some topics unless the source is din there's no improvement in sound quality.Dan Turner said:I've never done the conparison myself but Naim reckon the DIN inputs are better and if you go the Naim forum/FAQs then there is an explanation of why they use DIN connectors. Whether it makes much difference where the source end is connected with RCA I don't know.