Feel free to post about the Orange duplex in the thread below. I also posted about my experience with the Orange duplex that thread.
https://forum.audiogon.com/discussions/anyone-try-the-new-synergistic-research-orange-uef-duplex?highlight=orange%2Bduplex
https://forum.audiogon.com/discussions/anyone-try-the-new-synergistic-research-orange-uef-duplex?highlight=orange%2Bduplex