It makes no difference to me that Yamaha tweaked their protection circuits to give better results as this test is kind of useless and unrealistic. Yamaha power delivery is not an issue and bests most other manufacturers (model equivalent comparison) in the 2 channels test based on Audioholic's reviews of the older generation A series.:)\n\nAgree, their 2 channel output typically (though not always) tested higher than similarly priced D&M, Anthem, NAD AVRs. That's good enough for me because I don't even worry about ACD capabilities. For the kind of music I listened to, even SACDs don't need ACD to be all any more than 50WPC, as long as the mains and centers are capable of their rated output simultaneously.