I remember seeing threads on this before I bought my 2011....now it's my nightmare. I run a pair of mission 752's off my amp and the CD quality is just too bright (CD player - Marantz CD63). I decided to audition a couple of sets of new speakers the AE evo 3 and B&W 602.5 S3. The B&W's were a real improvement and the Evo 3's less so but both speakers cut my amp out at med/high volumes you would expect to use for a party (-7db on my set-up). Going back to the 752's gave no problems at all. Both speakers are nominally 8 ohm and 100 - 150Watts power handling. Does this mean I simply cant buy these speakers or can I do something like change the amp setting to 4 ohm? Advice needed please!!