Long ago, I lived thru a few summers in Brooklyn with frequent brownouts, I know what poor power sounds like.
The older I get, the less I go for BS that prevents convenience, as long as I experience no detriments
After the separate circuit(s) to the location:
I use a Furman P-1800 (PF R Version)
Power Factor Technology supplies 45+ amps of instantaneous reserve current, on demand, for power starved amplifiers
https://furmanpower.com/pages/prestige-series
always on sale somewhere, new $350 eBay
I figure: since everything is coming from the unit's internal capacitors, I could plug it into my air conditioner's or refrigerator's circuit and get away with it.
I actually plug the Furman into my Chase RLC-1'a switched accessory outlet for remote system power, then the Furman's capacitors, then the equipment, so everything is going thru a single device rated for15 amps. It's got a fuse, I can't blow it.