Classe Sigma AMP5 or Rotel RMB 1585

Hello Everyone, 
Looking for a 5 channel amp to add to my home theater. I am using Arcam AVR 550 with Paradigm Studio 60 v5. I can obtain either for almost the same price. These are the only 2 amps I am interested in as they are in my price range and I would like to stick to these two brands. I know there are a ton of options out there which may be 'better' than these to but please only comment if you have experience with these 2 amps. 

Thanks much!