Why do you suspect that, KR4?
My experience is limited to the 200.2 and 200.4 (I use evo amps on all 5 channels of my h/t system), but I recently read a review somewhere of the evo4 (4-channel version of the evo2) that said bridging benefitted the sonics far beyond the increase in power output. According to Bel Canto, the only difference between the evo2 and the 200.2 is a larger power transformer.