One dedicated breaker, #10x4 line, one leg to a dedicated 9’ copper earth ground stake and the other end to the amp chassis.
Both amps to the same receptacle. Use a hospital grade 20 amp receptacle. They are sturdier.
One dedicated circuit for each mono block?
If I have a dedicated 20 amp Circuit is that ok for two monoblocs? I read that a separate dedicated line is better for each amplifier. So the outlet can't have two plugs but it's better to not use one of the two plugs when connecting a mono block?
I have a transparent Power isolator which I know use to plug amps into.
So maybe a dedicated circuit can be used to plug amps directly into and then have Power isolator connected to a separate Circuit for everything else.
I am trying to evaluate the merits and to need for getting a second dedicated line while installing the first.