where's all my power going?

recently purchased a fabulous mc 402 and a levinson 320. i've got a arcam fmj cdp and revel f30's. i'm not sure what's up, but were peggin the 400 limit on the mc 402 and that doesn't seem right. until the mapleshade amp stand and the mega feet for the speakers comes in, everything is at the mercy of the vibrations. i love to jam and can't believe this amp is working this hard. anybody, anythoughts- thanks brent