I'm currently using a Graham Slee Gram Amp 1 with my Roksan Radius deck. I'm trying to draw up a shortlist of possible upgrades. The Trichord Dino was mentioned by Clare, does anyone have any other firm recommendations in this category? My local hi-fi dealer favours Musical Fidelity. Don't know the specific model numbers, as yet. Anyone out there with any pertinent suggestions. Thanks.