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

What’s really revealing in all these comments is the absence of testing. When I was at a dealer they had a couple options set up for comparison and this wasn’t really helpful. I asked if anyone looked at EMI or RFI results before and after inserting a Power System and I received a deer in the headlights stare.

There are other things to consider Beyond EMI and RFI but still there is Limited AB testing related to a power system. The whole industry has a problem with AB testing for speakers and preamps and amps and cables. It is difficult to do it in light of differences in gain settings and volume comparisons and going back-and-forth between components. But still it would be nice if this occurs more frequently by the dealer as he’s better suited to handle this. I wanted to test a very low power amp versus a exceptionally high powered amp end it wasn’t set up to do that. And I couldn’t compare preamps because he didn’t have any because I needed to order them first. This is so ridiculous

After installing a new power management system, you should expect a smaller balance in your bank account.  

Improvement in performance, if any, will most likely be based on the psychological need to justify they expense.  

I've used many power conditioners but have had the best success with Plixir.

Plixir doesn't limit current and is balanced. Use for your DAC, Streamer, Pre etc.

Plug your power amp straight into the wall.

The use of an AudioQuest Niagara power conditioner has definitely improved the sound quality of my system. Together with a good power cable you can significantly lower the noise floor and help to diminish the RFI and EMI that can really limit the clarity and the depth and breath of how your music sounds. 

Hello, emergingsoul

If you can get a "Niagra quality" power management center and appropriate power cables installed in your system for evaluation, I would do so.

I would suggest, however, that you either a) wear some Depends, or b) have an extra change of underwear close by.  I do not want to be responsible for what happens when everything in your system with a power cord sounds remarkably better -- all at the same time.

Or, you may hear no difference at all.  But, I'm leaning more towards jaw dropping.