Musical Fidelity A5 or A308 integrated?

I am considering an upgrade from my Musical Fidelity A3.2 integrated. I have a pair of Dynaudio Focus 140's and a Musical Fidelity A3.2 cd player, along with a REL Strata III sub. I think the 140's could use more power. I know the differences in watts and other specs according to MF's website. My question is directed to those who have heard them both and who also may be familiar with the Focus line from Dynaudio. My room size is 18x12x8. Thanks for your help.