I am the original owner of a PS One power amp, serial number 245, and over the years I have suspected the sound quality isnt as good as it use to be. I’ve doubted myself since I have owned it for 36, 37 years and my hearing ain’t what it use to be. So I finally bought a newer , but used, NAD power amp and it kills the PS One. But back in the day the PS One was far superior to anything within triple the price of a PS One.
Maybe it needs to have some components replaced. Can anybody recommend someone who can bring it back up to original spec?