Michael Fremer, Stereophile

Were it not for PS Audio's regenerators, I'd be out of business

Rafe Arnott, Part Time Audiophile

Tone, and timbre of instruments are spot-on, with wood-bodied ones in particular in possession of the proper scale, weight, and resonance that I associate with real acoustic guitars. Organ, and piano notes are mellifluous, and the slide guitar, and horn arrangements have a burnished, brassy flavor. Opting in to the P20, the already big, hip-shaking bottom end seems to swell in size, and weight, with a deeper tonal shading now coming through. Vocals take on a sweeping, more expansive quality

Jeff Dorgay, Tone Audio

I'm gonna violate the prime directive and tell you to get one. You won't be able to un-hear it, and you won't be able to live without it. So be ready to pull the trigger when you take the test drive. Consider yourself warned. It's that good

Tom Lyle, Enjoy the Music

Would it be necessary to provide specifics on how my system sounded better with my system connected to the P20 versus how it sounded when not connected? I'd end up reciting a litany of audiophile approved characteristics, all positive, such as an increased frequency response in both the highs and lows, a more transparent midrange, greater attack, longer decay times, a larger, deeper, more detailed and more properly drawn to scale soundstage when appropriate, a sense of increased dynamics

Jim Austin, Stereophile

How does the DirectStream Power Plant 20 compare, sonically, to the P10 Power Plant?... I did do some comparative listening. The P20 sounded noticeably better, in all the same ways: naturalness, detail, image precision, soundstage depth and width. I've come to consider my PerfeposictWave P10 Power Plant an essential reviewing tool, less because of the improvement it makes in the sound—although that is, of course, important—than because it levels the playing field for the equipment I review

Rafe Arnott, AudioStream

I loved the P10, but the P20 offered all of that and a lower noise floor with even better transient response on dense classical music passages (massed strings), percussion notes occupying the space between the lowest octaves and improved vocal inflection, never mind an even more effortless sense of breathing to amps and preamps. Throw in twice the number of output devices and double the power-supply storage of the P10 and upgrading became a no-brainer

Greg Petan, Positive Feedback

The P20 and P15 series products connect live and reproduced sound in a way that cannot be achieved any other way if dirty power is a culprit, and dirty power is almost always a culprit. If you are planning to build a great system, addressing the very element that brings these inanimate boxes to life, these products should be a priority. Your music will thank you

Dave Clark, Positive Feedback

I have everything plugged into it and simply find our music to be more dynamic and alive. Greater separation and resolution…and all with no hint of harshness or whatever. No glare or grit. But, more visceral and, well... more overall engagingly so….Bass seems to go lower with a wonderful sense of tightness… or rightness, especially as evident from the subs in the Vandersteens. Slam and punch, texture and presence. Palpable as all get out, and, as I said, texture… oh man… where there is

Christiaan Punter hifi-advice

P20 further improved crispness, expression, and clarity. At this point, the raw power was unlistenable, making the system sound confused, blurred, rough, and shouty

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