I have a pair of speakers + a center channel speaker for my computer. Neither are powered and so both have amplifiers, which are then connected to the PC. My question is, the center channel doesn't work when plugged into the center channel port (orange port). It does work when plugged into the green port, but that's the one the speakers are plugged into. I'm ordering an auxiliary splitter cable so that both amplifiers can plug into the green port that I haven't received yet, but my question is, why wouldn't the center channel work when plugged into the orange port on the motherboard? Is there something I'm missing?
Stereo Speakers: https://www.miccatron.com/micca-rb42-reference-bookshelf-speakers/
Center Speaker: https://www.miccatron.com/micca-rb42-c-center-channel-speaker/
Motherboard: https://www.asrock.com/mb/Intel/Z790 Steel Legend WiFi/index.asp
Stereo Speakers: https://www.miccatron.com/micca-rb42-reference-bookshelf-speakers/
Center Speaker: https://www.miccatron.com/micca-rb42-c-center-channel-speaker/
Motherboard: https://www.asrock.com/mb/Intel/Z790 Steel Legend WiFi/index.asp