Parasound A52! Its heavier and even though its watts per channel is comparable to the Rotel, its produces twice as many amps per channel of peak current. The transformer is larger and capcitance greater on the Parasound. It has XLR inputs, the Rotel dosen't. Finally the A52 is Class A/AB and the Rotel is class AB only. Not knocking the Rotel but it is not in the same league as the Parasound model in question.