Probably, you might hear a difference but it’s the law of diminishing returns. How much do you want to spend for that last little bit of return?
I was planning to move my P10 to my HT set up, and music is more important to me. So I was looking to see if the P15 would be a noticeable improvement or will the P20 offer more with justified investment.
I wish it were that easy to just use percentages of load and get a clean answer.
A P15 will easily outperform a P10 regardless of load but it will never perform like a P20.
The easiest way to think of this is to use a single piece of kit as an example. Take a BHK preamp. It will sound better in a P20 that it will in a P15 or a P10. Each progresses the sound of a single piece as well as an entire system.
It is akin to comparing performance cars. They will all navigate a given corner at 60 MPH, but the additionally sophisticated chassis and suspension of the more accomplished machine will turn-in quicker, provide better feedback, etc. It is a qualitative difference, not quantitative.
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I’ll take mine with three pedals and a slight rearward weight bias please.
Excellent choice, especially the weight bias - a knowledgeable preference. And I bet you know how to heel-and-toe.
I almost sold my track day car because of unforgivably poor pedal placement in an otherwise sublime machine.
Paul, I had my dealer I use for PSA order me a black P-20 on Friday. Is PSA shipping these right away? I was hoping I would have it by Friday so I can enjoy for the long weekend! 
Great! Not sure about this specific one but yes, P20s are flying out our doors daily.
If possible, to have it for this Friday, would be outstanding. I am on the east coast so it would have leave PSA today.
Shipping zip is 01095
Sure. Where did you purchase it from?
Mr. Cable / Scott
Didn’t realize you could expedite Paul. Good to know!
I’m currently using two P10s (on two separate dedicated AC lines) to power my system, with two JRDG 725s2 monoblock amps and two Von Schweikert VR55 Aktives enjoying separate High Power connections for the L and R mono channels. I regard the independent L / R power provided by my two P10s as a key performance feature in my system. At maximum load, each P10 is barely pushed to 25% of output capacity. Questions:
If I were to replace my two P10s with a single P20, how much component-to-component isolation can I expect to maintain? A great amount between separate duplex outlets on the back of the P20 due to the super-low output impedance across the thick copper bus bars, but what about between the two outlet plugs on a single duplex (which are essentially in series within the duplex) - none, right?
A single P20 only has two duplexes which are labelled “High Power”. I’m assuming that my two monoblocks will occupy both, with one AC cable in each duplex, each feeding one amp, leaving no more High Power duplexes. How capable are the non-High-Power outlets then in delivering what might be asked of by the Class D amp in my powered loudspeakers? The output demands will be modest, as I typically listen at sub-85dB volumes.
Alternatively, I can upgrade my two P10s to two P15s, which will actually better fit into my current physical configuration, and maintain the desirable electrical and mechanical separation.
Which will result in better SQ - two P15s, or one P20?
Paul (or others) - would appreciate your insight!
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I just wrote elsewhere that this is a tough decision because, yes, you’ll get better isolation with two P15s and that has its advantages which cannot be duplicated by the P20. The P20 is the definite sonic winner but not by so much that your plan doesn’t have a lot of merit. In this case, where you have need of the physical and electrical isolation, I’d likely recommend the twin P15s as the better alternative, all things considered. Now, twin P20s…
Assuming the new Power Plants are like the ones that came before, the difference between the high current outlets and the others is that the former have in-rush limiters so things like big tube amps don’t trip protection circuits when they are first turned on. All the outlets provide the same amount of current in operation so the Class D amps should not be a problem if connected to non-high current outlets.
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And this remains the same. Thanks for chiming in.
So, those in-rush current limiters make great sense for massive capacitor banks charging up initially, but how would they interact with very rapid increases in current draw like in a Class D amp that suddenly needed to really belt it out? Any choking potential there? Just curious.
No, should not be a problem. In fact, quite the opposite. Because the P20 has such massive energy storage capability, when an amp requires instant current—even current amounts that might trip a breaker if it were plugged into the wall—the P20 supplies it with ease.
How does the P20 distinguish the difference between an in rush current at turn on and huge musically triggered demand from the power amp.