I have a rega brio r amp and am wondering whether its worth giving a dedicated phono amp a try. I've always been pretty pleased with the sound I'm getting, whether background whilst I'm working or knocking the granny out of it. Brio R is paired with RP3/Ortfofon Blue and neat motive speakers. Any views on whether introducing the new Graham Slee Gram Amp would be an improvement? I listen to a wide range of music - from old and new hip hop, prog rock, isaac hayes to husker du - so its not like I need it to display a certain bias toward bass or anything like that. Any views?