What should I expect after installing a new power management system?

Try and A-B everything you plan on spending money on. Just make sure it makes a difference for you. And leery about them. I must have clean power because all the stuff I tried didn’t work.

I agree with @raysmtb1. And before you bother, why don’t you audit (or have a good electrician audit) your electrical system, starting from the service entrance. You can’t pull the meter though the power company can. Look at what Fremer went through when he had problems with a Generac installation- they found corroded contacts at the meter and all sorts of other stuff.

I haven’t used a power conditioner in a long time, so my experience with the latest crop is nil. I do have a very good power system, though and spent money on it to get it right. Frankly, the infrastructure where I’m at now is far better than what we had in NY and I probably could have skipped the big iso-transformer. But my speakers are 104db and you can hear every gremlin if it is there. I’m always worried that filtering is going to throw baby out with bath water.  I know that some folks like the effect of conditioning, but no one’s situation is exactly the same. Is this a new location for you? I went through this when I moved from NY to Texas.

My house was built in the 50s with mostly ungrounded circuits.  When appliances or the community well next door kick on, lights dim.  Early on, I ran power up from the basement so there was no noise when the refrigerator cycled on.  A used PS AUDIO regenerator cured all these ills.  My tube integrated , Rogue Cronus Magnum II, is silent, and after a year the bias on the tubes had not moved a bit.  I’m a believer for those with terrible AC.  Les expensive than an electrician and dedicated circuits.

To paraphrase the hippocratic oath, do no harm.  A power system that limits spike current will kill your systems ability to respond to dynamics, especially on bass.  I don't use a system.  I do use very heavy (10awg) power cords.

Power cords are simple.  they are big pipes for current.

Power conditioners are a differnt animal. they all have inductive loads that resist voltage and current changes.  It surprises me that high end systems can be designed that limit current.  Just make sure you choose one that does no harm.

Jerry

Don’t waste your money or time! Snake oil! But, If you are going to get one,

don’t forget to buy a $5k fuse and $20,000 cables.