I have the the Maranzt PM6005 with KEF LS50 and and Isotek Mini Sub power mains purifier and I am quite happy with it. However, I want just a little more power and control with a tad less harshness and the same leves of detail and excitement. I have about £300 to spend and I doubt I"ll get anything that will beat the Marantz at that price. However, would a 2nd hand Arcam A22 be better than it, as I could easily pick one up from ebay 2nd hand. Thoughts would be appreciated!