high current delivery perhaps more than the amount of watts might make an even bigger difference in the case of B&W speakers, even at half the watts your Rotel is capable of delivering. The type of power seems to make a difference, not just the quanity,important as a consideration as that remains. Also-really, checking out different speaker cables/interconnects certainly could not hurt in the process of determining where the problem might be in your system, and is perhaps not as extreme as getting a new set of speakers or new amp...much as I envy you that choice.And yes, there are a zillion and one speakers that boogie and rock! Godfrey! it makes you wonder why we ever had another choice.