I have 2 audio amplifiers with output voltages between +10V and -10V. I want to make a digitally controlled switch to control which amplifier is driving the speaker.
The clear choice is a relay for this but I want to do this using FETs if possible to take up little space on the pcb and be inexpensive. I also want the amplifier output to remain as unattenuated as possible.
I found this circuit that uses a p channel and n channel to make an analog switch
I can see this working for positive voltages, but will this be able to control the negative voltages from the amplifiers? Is there a better option for this?
Cheers!