Been using many iterations of PS regenerators since late ‘90s, their PP1200 (20yrs+) trouble free (only needing fan changed twice), always brought improvements to whatever plugged in (various—too many to list over those years).
Recently, just for peace of mind sake~thinking too old (but they still work flawlessly btw.)—while looking for new, auditioned some of those mentioned above plus few other popular auto voltage regulator types. Again, ended up with P20 clear winner in my system. 3D, resolute, dynamic all the while sounding v.natural/organic ie.no stripping/washing off colors as many do. And that saying with my main (dedicated) started reasonably ok—with less than 1,5% THD in on average, and very little voltage irregularities if any.
If sure not a faulty P15 you got—I’d try let it settle a bit more whilst try play around with adjustments. Sine/multi, also—tune voltage out—as few volts up/down could alter sound quite markedly ime. Also, power cords into/outward of it play a big role too. And if possible, separate power amp from sources on different dedicated mains using two PP (even smaller ones ie. 2xP10), this will further bring upticks in sound—cleaner, better separation and open up the soundstage even more, imo.
Can’t imagine living without them in my system. Good luck.
Recently, just for peace of mind sake~thinking too old (but they still work flawlessly btw.)—while looking for new, auditioned some of those mentioned above plus few other popular auto voltage regulator types. Again, ended up with P20 clear winner in my system. 3D, resolute, dynamic all the while sounding v.natural/organic ie.no stripping/washing off colors as many do. And that saying with my main (dedicated) started reasonably ok—with less than 1,5% THD in on average, and very little voltage irregularities if any.
If sure not a faulty P15 you got—I’d try let it settle a bit more whilst try play around with adjustments. Sine/multi, also—tune voltage out—as few volts up/down could alter sound quite markedly ime. Also, power cords into/outward of it play a big role too. And if possible, separate power amp from sources on different dedicated mains using two PP (even smaller ones ie. 2xP10), this will further bring upticks in sound—cleaner, better separation and open up the soundstage even more, imo.
Can’t imagine living without them in my system. Good luck.