Does and don't

@albertballewI don't understand why you want to use a voltage regulator instead of a powerline conditioner unless you are constantly experiencing significant voltage fluctuations from your mains supply.

If mains filtering is a requirement, something like this https://furmanpower.com/products/it-ref-15i which is based on an isolation transformer might be an option where high current is necessary.  These units can be sourced at reputable dealers on the internet new for a fraction of this price if you are interested. 

I use the furman 20i on my bryston 28 b3 because it has large caps that give it at least 60 amps for transients on loud volumn.they go on sale at 2k.works fine however I would like to plug them directly into the wall but too many power spikes in my area.enjoy the music

Ty all. It's a furmam  p-1800 ar  15 amp prestige voltage regulator.

Yes.