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Old 7th August 2020
  #5
If solid state you will need a 4 pole double throw relay. Somewhere between 5 amps and 15 amps depending on the wattage of the amplifier. Here are two good resources. https://www.soundonsound.com/forum/v...p?f=24&t=58529 and https://www.diyaudio.com/forums/soli...ker-relay.html. If you have as tube amp you will have to use a different configuration due to tube amps need to be "loaded" at all times. If more questions let us know.