Dedicated lines — how many? Other advice?

@ditusa @audioman58  Thanks -- taking notes and following those links. Appreciate the actual help.

Glad to help , happy 4th to all 🇺🇸 

A seperate dedicated line for with a good line conditioner would’ve optimal Audioquest ,has the  model 12000 , 2000, or2500
and 5000 , like myself the bigger wire the better awg 10 is what I used , 20 amp breakers , and 4 wire Not Two, using a dual ground , one common ,the other a insulated isolated ground ,noticeably 
lower noise fooor and for sure and pure silver Circuit breakers or silverplated over copper .much better then stock ,and won’t oxydize like copper, and Copper gold AC outlets pangea 
not expensive $50 each have at least 3-4 outlets installed you 
will use them ,and cap the openings if not using to prevent dust
Getting inside, if you budget can handle a higher priced line
conditioner buy it ,it has better technologies. Also for equipment 
protection Siemens make a nice  surge suppression that installs at
the breaker box.  it’s less then $200 Everything counts.
2 seperate 4 wire dedicated lines better then 1 . Copper wire only 
and all your power cords should have -0 Brass which most cheapest ones have 3 x less conductivity-more resistance = noise
i build some of my own powercords ,and use Furutech  about $120 per per mid grade, VH audio is very good for assistance , email Chris he builds them too if you want quality  ,less $$ then commercial brands , triode wire audio cables are very good value- quality.

Thanks, @audioman58 

Another vote for multiple dedicated lines, and all the other details are being noted!

A follow-up on my early 1-line comment. I tried 2 x 8 gauge lines. One for power amps and ESL power and one for turntable and phono preamp. It sounded fine but not much of an improvement over the existing 14gauge 15amp shared line. There was also a little hum. I killed a breaker and wired everything into one line. Immediate clarity and blackness.