Just to make sure I understand this correctly, could you confirm what I posted here?
I thought about analog switches, but I don't want to make this more complicated than it really needs to be. Analog switches could be just as easy... I just don't know. With switches, I'd need to have a 5V logic source (correct?) and I don't know if that would add a lot to the complexity of the circuit.
I'm wondering if instead of using relays, I could use these JFET's to switch audio to an output on and off.
If I'm reading your diagram correctly, when I disconnect the gate from the voltage source and connect the gate to the drain, the depletion region opens up as there's no more biasing. Correct?
If I added another switch that would be "normally open", the gate would be connected to the drain normally, then when I need it to close, I connect it to the 12V supply. How long would it take for the depletion region to be created?