IF you have an electrician out do a tuneup on your panel with cleaning and tighten connections, new high quality breakers, get the motors/ fans etc on opposite leg of audio
Theory and results tend to differ with highly variable quality of household wiring and grounds. As others have said you are probably going to need to try it both ways...
i have
and with both stereo and monoblocks in my system with three dedicated lines each monoblock is on a line and the sub amps are on the third line.
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