I think more to the point is the initial movement/surge of power needed to get the quickness needed. I know my system sounded very different running the A1400 compared to the 3808 alone. Bass had much more impact, even at lower volumes. The 3808 alone sounds very good, with the A1400 it sounded incredible. Someday I hope to play around with a Pro amp to see if they work as well as the Axiom amp.