Monoblock power amps same dedicated outlet?

As long as you are running a awg 12-10 gauge Copper 15-20 amp  breaker circuit then no sweat your amps and preamp should be on the same line anyway to prevent ground loops  no way you will trip a breaker unless you have super low impedance speakers blasting in the 100+ db spl region. I owned a Audio store for years and rarely seen issues with big amplifiers speakers unless very unfriendly loads to 2-1 ohm like the old Apogee ribbons your amps have plenty of capacitor storage capacity to have plenty of reserves on demand just  make sure your dedicated line is a awg12 or lower, lower # = bigger gauge.

I am experimenting for optimal sound as I am confident that I will not trip a breaker....I am not hearing any hum or ground issue in any of the configurations....

I am trying to see if a sonic difference if each monoblock is on a separate dedicated line or not.....

its not apples to apples since one line is 4 feet shorter than the other and has a different SR outlet too (yeah I know that is a controversial tweak) .....I cannot even say that the electrician used the same wiring but the gauge was the same .....

I am not sure there is a difference but my initial feeling was a bit more headroom when monoblocks were separated on different dedicated lines.....this could be some sort of bias....but if there is no hum or other negative that develops will probably stick with it.

I also tried putting subwoofers on a non dedicated line to separate it from the amp but that sound was less pleasing....not surprising since it is a nondedicated line and has a much higher gauge too....I really didnt hear any improvement in the sound of the midrange and treble with the monoblocks separated from the sub.....

I am assuming that the REL S/5 SHO taxes the dedicated line less than the monoblock but that might be wrong.....I will say I listen to the monoblocks a lot louder than the sub (the sub volume is ten clicks from minimum and the crossover is 9 clicks from minimum so essentially has only a modest output somewhere under 50hz,,,,the speaker claims goes down to 35hz +-3 but my guess in my room peters out in the 40s

You can with a dmm and an spl meter leave the realm of guessing....