Smart fellow. Life’s too short.
Sooner or later the echos will get tiring to listen to, even if they are all about “himself”.
Thanks for the advice. Excellent thinking.
With him facts don’t matter if they don’t fit his agenda and we’ve seen that before.
I read the article Galen linked. Besides being 20 years old, it suggests the USA system relies on trade associations to set non-statutory standards and producers to upgrade infrastructure, rather than federal legislation. The EU loves regulation and legislation, famously down the bend of bananas.
I did draft a reply to your main point, not posted. I thought I’d first agree on the importance of reducing mains-borne noise and ask what you think regeneration offers to devices using switch mode power supplies.
Put it this way my whole video chain - Sky Box, Blu-ray player, lumagen Radiance pro + Sony tv all use switch mode power supplies. The improvement to picture quality is massive when run from a P20, so I guess the answer to your question is quite a lot
I’m about to buy a new AV system, including a Sky Box and the latest LG TV. Besides a P20 would not fit in the cupboards that are being built, I was planning on buying a Chroma 6, which is designed specifically for AV. Another reason would be that the Chroma 6 is small and costs £700 and a P20 costs £10,500, which is 5 times the cost of the TV.
I never suggested that it you have a regenerator it does not help with the noise impact on switch mode power, which it does. Due to the lack of sockets on the smaller units, I used a regenerator and a conditioner side by side. If I had a P20 with all its sockets I would probably do the same as you. My more recent experience is that a good conditioner can be more effective with my Class D amp than the regenerator I had. I have no idea why, it just is.
What is a lumagen Radiance pro? Is it some sort of sound system? I’m not into TV and our current machine is not HD. We’re probably in for a surprise, with or without a Chroma 6.
This morning, our kitten spit up a fur ball. Is fur ball one word or two?
SMPS are particularly affected by power line quality. Think for a moment about how they work. At their input is a huge capacitor across the line and a chopper. The chopper is cutting up the incoming AC at, maybe, 100kHz and the cap is attempting to keep the voltage up between chops. The power factor of a SMPS is extremely low, often down to 0.2 or 0.4.
Like everything in audio, the resulting DC supply is directly affected by the incoming power quality. The SMPS are notorious for being lousy suppliers of current when needed, which is why the typical SMPS fed amplifier struggles with low impedances and why a SMPS powered class D regenerator produces higher distortion and greater flat topping of the AC waveform art its output under high-demand loads.
A regenerator like a Power Plant solves these problems by providing a dynamically regulated low impedance, high current, output voltage from which the chopper can happily chop away without any fluctuations. It’s the perfect scenario for this type of power supply.
Thank you Paul, I was looking for an answer to regeneration and Class D generally. I have some further questions, but have to rush as today is the first day of lockdown easing and live performance is back, so off to a recital shortly. Even more exciting than discussing clean power.
A Radiance Pro is a Video Processor. I bought my ex demo P20 at almost half that price.
A “Video Processor”. Now you’ve lost me. You got a great deal on the P20.
After a fabulous concert, I was driving home and caught the tail end of a fun little BBC R4 series from the Science Unit called “Dare to Repair”, available here. Should appeal to audiophiles who like to tinker. Fixing things is in again, and it’s not the same as repairing.
Next up was a programme featuring Dr Gillian Tett, the journalist and author, discussing her latest book, which explains the PS Audio Family, why they refuse to countenance mains conditioners and the whole tribal thing. Now I understand why the argument is pointless, and it’s got nothing to do with impedance. Out in a couple of weeks.
iplayer is a wonderful thing (even if the bbc have rechristened it “Sounds” for some reason)
“USA system relies on trade associations to set non-statutory standards and producers to upgrade infrastructure, rather than federal legislation”
THAT is WHY it WORKS. The feds have NO CLUE about tech. They adopt, on occasion, private policy standards and if they get it wrong, tech gets strangled. I won’t list the most recent “tech” stances that the USA feds have adopted to suggest they are better than letting tech work out the issues unrestrained.
Consumers aren’t dumb. The truth rats out the man behind the curtain every time. Consumers can accept transitory decisions that are deficient but are upgraded as we go, we DESPISE frozen in mistakes by the feds that kill innovation.
Best,
Galen
Both are acceptable on this forum.
Just gotta say, the P-20 I obtained this past year represents an astounding, phenomenal, wicked-awesome remarkable improvement to my system. (Sorry, my annual quota of intelligent grown-up words has run out for 2021.) The P-20 replaces three different MIT power isolating/filtration boxes. And it follows an obsessively executed dedicated power line improvement exercise (down to the silver paste in the electrical panel). Truly, I had no idea what to expect, but I followed @jamesh suggestion that the P-20 represented the best next step in my system’s upgrade pathway. My jaw dropped even when starting it up right out of the box. Instant spacious and precise soundstage, new accuracy. Thanks PSA and James for your guidance.
Thanks so much for posting and letting us know! The shout out means a lot and really glad to hear you’re loving it!