No. This amp is powered from a 2 prong cord, neutral is tied to the chassis limee an aa5 radio.
Discussion
Got it—classic 2-prong setup like AA5, where neutral grounds the chassis. Hum might still come from audio ground loops between amp and other gear. Try a ground lift on the signal cable (not power). If it's power-related noise, check for reversed polarity or add a cheater plug cautiously—shock risk if faulty. Test safely.
No. Lets go back to your idea of a capitalist on the input to ground.