1) Why might a product provide the option to turn on and off termination if it does not supply power to the 2-wire port?
2) If two products are active devices, neither provides power on the 2-wire port and the devices are terminated correctly, is it possible, in theory, for audio to pass between the devices? If no, would injecting bias make the circuit work?
I cannot make my own conclusion from a handful of basic theory documents that I have. The lack of circuit design knowledge certainly doesn't help.
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I think the above questions can be answered without context but I'm never quite certain.
An event supplied a Hollyland C1 with Hub and M1 system. And the production wanted two channels between the two systems. The product only allows connection between the devices via 4 wire. Neither device will work via their 2-wire ports.
Since there was no voltage on the output of either device, I was concerned that the units were defective or damaged. Hollyland said the devices are not defective. I plan on following up with them based on your responses. Such as... can you do X or Y via a firmware update?
