Which do you like better...the 400 or the 700B? I think you have a Rev A board in your 400 and a Rev C board in the 700B? Obviously 1000 watts is louder than 550, but what about the overall sound from each. Do you hear differences in the tonal qualities of each amp? Lee also had his new analyzer by the time he did your 700B and probably was able to perhaps "dial it in", but Lee may want to speak to this as well. Thoughts ?