Do I need a power conditioner?
From my experience, Yes. The problem with noise is one doesn't know it exists until removed.
As with all components, power conditioners and distributors have their distinctive sonic signature so no one size fits all.
I've had many many active power conditioners, Shunyata, PS Audio PPP, EquiTech 2Q ... they all remove noise, darker background but found the sound processed and artificial so been using 2 passive Weizhi PRS-6s. One for amps and other sources.
I've always had high current/power amps and found they benefit with power distributors. All active conditioners I tried seems to limit current and dynamics where 2Q was by far the best.
I don't experience any limiting with the Weizhi on 300 wpc mono amps. I have 2 friends very satisfied using HB Cable Marble with their system/amps. Also heard
Soulution amps
owners positive results with Ansuz Mainz8 power distributor and Shunyata Denali.
My 0.2!