What if I went something like either of these? Furman P-1800 AR or Furman M-8X AR
A lot of the reviews mention quieting noise. I know reviews are hit or miss, but this one sounds close to what I'm trying to accomplish:
"After years of going gig to gig and having my guitar rig go from being dead quiet at one venue to noisy (hiss, 60 cycle hum, etc.) at the next, I finally bit the bullet and bought the Furman P-1800 AR. Now my rig is dead quiet everywhere I perform."
The P-1800AR has both filtering and regulation. The M-8X AR seems to only be regulation. I have an old Furman regulator (probably 20 years old) and one of the conditioners (PL-Plus) from the same era. They didn't have all of the filtering and regulation in the same box at the time.
https://www.sweetwater.com/sto…il/PL8C--furman-pl-8c-15a is the Furman unit starting point IMO. That line goes up in price according to whether you want a voltage display, or voltage/amperage display (PL8C Plus-).
Next up is the https://www.sweetwater.com/sto…00PFR--furman-p-1800-pf-r. It has the features of the PL8C with the display. It is made for tube amps and stores some reserve power.
The aforementioned https://www.sweetwater.com/sto…P1800AR--furman-p-1800-ar is the PL8C with the display and voltage regulation. The need for regulation is mainly to protect from too much voltage coming in off the mains. The unit is heavier and may hum when regulating (my old one did when the power dropped). It does add a transformer, which may give an extra buffer. But the Kemper is designed for various voltages and this probably would not be needed.
