Hi shtr74sims...thanks for the question,
A simple hospital grade upgrade, even into a shared circuit, will help sound. Over years, I've gone from Hubbel, to Acme to Furutech outlet in a dedicated circuit, including their receptacle cover. Additionally, I replaced the male plug to my dedicated wired line conditioner. The resulting noise floor, for me, is well worth the cost. I'm not overly handy, but was easily able to DIY the upgrades with simple household tools. "CIRCUIT OFF!!!" :)
The higher end Furutech receptacles have spring-loaded grip, taught and less abrasive over years of use.
Happy tunes and More Peace, Pin (bold print for old eyes)