Try Sonic Euphoria's Passive Line Controller; has 2 sets of outputs, very neutral, virtually nonexistent noise floor. My setup somewhat similar; biamped Paradigm Monitor 9's, Sunfire Cinema Grand power amp, Denon flagship DVD-5910 and the PLC. exceptional 2 channel soundstage with PS Audio power cords and Power Director; Outlaw Audio interconnects.
-Regards,
-Eric