I've seen many circuits of microphone amplifiers, and some of them have phantom power in them. But usually there is only one input, and if I were to design a mic preamp for two mics, and get the phantom power from the same power supply, how would I separate the signals?
In the picture above, signal from one mic can easily go to both amplifier circuits through the phantom power line. What kind of circuit would isolate the two mics, but still have the phantom power from the same supply? Or is there a need to design the phantom power somehow to give separate lines for each mic, and if so, how would this be achieved?