bi wiring still only uses one amp and he uses two amps so it is bi amping he is just not going the full distance that bi amping can do with active crossovers that completely separate the frequencies that each amp and driver receive and does not use passive crossovers inside the speakers, This is true bi amping but but it not used in home audio very much because most people do not have the knowledge and don't want the fuss of matching levels and all that is necessary for full bi amping but what Mr. Peabody is doing is a form of bi amping not biwiring which would only use one amplifier.