Monoblock power amps same dedicated outlet?

First of all thanks for all the detailed input.

I should have added more detail though ...my line preamp and sep phono preamp and turntable are all on a second dedicated line plugged into a synergistic power conditioner.

My third dedicated line is just for the pair of REL subwoofers.

Late last nite I changed it so each monoblock on different dedicated line...but second outlet for each monoblock has REL sub....i figured less current draw more headroom for monoblock albeit not ideal same circuit as sub.

The sounds seems more open and bass still fantastic....maybe faster bass ?

I did reach out to Pass and Kent already emailed me back stating that one dedicated circuit is fine for both monoblocks that the power consumption is not that much ....unless you aee meters fluctuating a lot you not taxing amps nor line. He gave no opinion about sound but they claim power cables have little affect on sound and that is not my experience.

I was not thinking could blow something...maybe i should have....but just whether at loud volume would get more lively sound....seems to be the case but might be perception bias....will see over time over more records it still prefer this way...

Anyone think bad idea sonically to mix one dedicated outlet for left monoblock amp and left sub...I have REL set at low output and a low crossover so sub are very modestly involved.

I have another non dedicated outlet that could get another dedicated line but feel 3 dedicated lines enuf for now.....my SR atmosphere tweak goes into non dedicated line...

Lastly I did try running the subs into the power conditioner but felt somehow sound waa a little less big and live....the monos def prefer not going through power conditioner....SR says no power limits and my other system the stereo amp sounds better into their power conditioner but its a far less powerful amp

Anyone think bad idea sonically to mix one dedicated outlet for left monoblock amp and left sub...I have REL set at low output and a low crossover so sub are very modestly involved.

Well, to give a highly technical and esoteric answer I would say that if it sounds good it is good :-)

BTW, assuming you are connecting the sub inputs at speaker level, as you no doubt realize (but I'll mention just to be sure) the black wire from each sub should be connected to the white signal ground terminal on the rear of the corresponding amp. With the red and yellow wires being connected to a positive output terminal of the amp.  

Regards,
-- Al

Since you and I share the same amps but probably not the rest of the chain I will share what I did. 
I was told by .the Nordost rep it is best to power your system off one dedicated 20 amp circuit. So that's what I did  fortunately for my situation the breaker box is 20' away from my listening area.
Here is my rig
Dehavilland UV3 preamp
CEC TL2 X
Rega Saturn R as DAC/. backup CD player
Lumin D2 streamer
Rythmik Audio F12 subs
Pass Labs 260.8 monoblocks
My power distribution is like this a single run of marine grade 1000volt insulation 10 guage wire ,and Hubble hospital grade outlets. I distribute the outlets so as the amps are the first and then I distribute the components.
Never a problem no noise no hum or ground loop extremely low noise floor.
You don't need a nuclear power plant  for those amps
Happy Listening
Mark

I have two 20a  breakers to the back of my system. Two separate outlets. They go the same distance to the breakers probably 40’ of cable. More than enough power for this room size. While I was waiting for the electricians to change out the main power to the pole , i was running my whole system , everything off of a 50’ 10ga extension cord.  Thats three mc2300 amps and a mc2150 , mac c46 , nad m51 , bluesound node2 , and a 75” sony 4k . All off of one 15a. Breaker. Never had it trip . The plug was 6” from the panel so that helps . Even after a loud party no breaker trip. Thats 70a. Worth of fuses on just the amps . 
Moral of the story is that 15a. Plug can produce a hell of a pile of sound in a 2000 sq ft room with people in it. I’m still amazed by it. I know now that my two 20a breakers are way over kill. . One would work . 

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.