Should Amps be plugged into a power conditioner?

Depends upon the amp and the conditioner.  Conditioners that allow many amplifiers to function without limiting the headroom are very expensive.

Prior to purchasing the Shunyata Everest 8000 and a bank account’s worth of power cords, I spoke with various people and researched the topic of plugging power amps into the wall.  My integrated amplifier, the MA12000 at 300 watts per channel of not class D power had a definite McIntosh recommendation of plugging it directly into the wall.  My MA12000 and two REL S812 subwoofers each plug into their independent circuit on my Everest and I’ve never found anything but benefit from using the Shunyata.  Take a look at this review with reference material and components used at the end of the review.  I’m not suggesting that you do the same.  In fact, as previously mentioned, I purchased these with a ninety day guarantee of 100% refund if returned.  I fully expected to return the Shunyata and their Midas power cables.  I didn’t…

@bluorion 

Since integrated amplifiers include a power amplifier, then this discussion would be relevant, but I never had hum of any sort prior to using a conditioner.  A conditioner can change/improve the musical presentation and further quiet the background…but it isn’t an overt hum that most of us are concerned with..

Even though I did not find reduced dynamics with my Everest, I just put together a battery inverter system, and the dynamics, energetics and bass control are on a much different level than when the Everest was plugged into the wall. I still plug everything into the Everest, but the Everest is now plugged into the inverter. A major improvement to my system.. everything about the sound presentation has been improved and I didn’t know that it needed improving.