Power supply to Amplifier


What power is best for supply to Amplifier?
Whether it should be direct power from wall outlet, or through a power filter/conditioner or should it be Regenerated Power ( like from PS Audio Power Plant) ?
radni
Al,
Yes, you are right . Sorry for not interpreting you correctly. Since I am using class A amp , I did not pay careful attention to your comments to class AB and D amp. No harm intended.
Post removed 
Prior to posting this thread , I was considering whether I should have regenerator or a conditioner before my Amp. Now I decide I will have neither of them and continue with direct supply from wall. But for the views expressed here from FMs, I would not have been able to make such a decision. Thanks you all.