Alternate AC power frequency.. Higher than 60Hz


Watching a Paul McGowan utube video about "What’s the best voltage and frequency’I see he would go up to 400Hz for AC voltage frequency.
I use an older PS Audio P600 with an optional board which lets me boost AC from 60Hz up to 120Hz.
I use it at 111Hz to power my digital gear.
So far, over seven years, a few items died, Particularly Sony changer. ALso a Behringer DEQ2496 sounded better on 60Hz.  But other changers and DACs thrive and sound better with the higher AC frequency.
No no other (A few PS Audio P300 P600 P1200 with the optional board can do it) regenerators ’do’ higher AC frequency. But someone wrote the new PS Audio P20 will also up the frequency if so set.
Now not one word of this on PS Audio P20 owner’s manual. nor anywhere online.
Maybe I have to CALL Paul?
SO.. Anyone else hear of the PS Audio P20 being able to up the Hz from 60?
And yes I will discuss the benefits of this. Up to a point. If you know nothing and want me to educate you totally. Ahhh no, that is not gonna happen.
If you want tp view the utube video: https://www.youtube.com/watch?v=Np--y3Kfy28
elizabeth
Geoff
I think he meant you have a general aptitude to rub people the wrong way at times.

Y,now, he just could be right....…..
Uberwurst, maybe you and rel should consider starting a sensitivity group. Thanks for the psychoanalysis. How much do I owe you?
MUCH more than you could ever repay.
But that's fine,I believe in paying it forward.
Keep taking the tablets......
I would never experiment with different frequency power absent some clear permission by the builder of the gear I would be plugging into such a power supply.  I know that some manufacturers have power supplies that convert the incoming AC to a much higher frequency.  I believe that is the case with my Levinson No. 32 linestage.  I think its separate power supply box supplies  400 hz power (at least to some circuits) because the higher frequency recharges capacitors faster which means less droop in output from high instantaneous demand.  But, how would the unit react when it is fed some higher frequency power?  I have no idea, and would not want to find out by trial and error.
I am fond of Geoff (in a kind if well yeah he is weird, but fun, way) . And any banter between us I hope is taken as lighthearted.
I agree with larryi about not taking chances with expensive gear. And why I am not plugging my new $7000 box into the PS Audio P-600 I use at 111Hz. I do have several other digital bits plugged into the higher AC Hz, but all of them are cheap or old and reliable, or used bought cheap.There are warnings about ’digital power supplies’ (Confusing since that is not a regular power supply for digital gear, but any ’digital’ power supply for any gear) not being happy on a higher input AC.I found a Behringer DEQ2496 really sounded worse in 111Hz than on 60. And that my Sony 555ES changer quit working, Mainly due to overheating, so as soon as it was back on 60Hz, it was just fine.. So yeah there can be problems. And my guess is, the problems for a manufacturer to build and market a regenerator capable of outputting higher AC Hz far outweighed the pluses. As far As I can tell Paul McGowan likes 400Hz, but will not make one for commercial sale. And most likely due to endless questions, complaints and more questions. Then the liability issues.. I Googled 400Hz and airplane and found a bunch of info and products including ones to use on the ground with aircraft that use 120V AC to make a variety if AC voltages at 400Hz (including 120V) So if I or anyone else was interested. I think that would be the way to go.