Garth Powell on Why Audioquest does not make AC Regenerators


Interesting interview from a couple weeks ago with Garth Powell of Audioquest who seriously decries the use of AC regenerators with a detailed argument. I’m not qualified to affirm or rebut that argument, but since people debate "conditioners vs. regenerators" here, I’m passing it along for your inspection.

https://youtu.be/bXRehON7SlM

Notice that he doesn't mention ps audio and that ps audio defends its regenerators (as exempt from Garth's critique) in the comments. Not sure how many other regenerators out there beyond ps audio. 
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For myself I have owned a  ps audio power plant regenerate. I  now have a Audioquest 5000 conditioner. I was able to A/B both of them. For my electric grid the Audioquest 5000 worked best. 
Appreciate hearing people's experiences. I've watched more than a few of Paul's videos on the regenerator. If I am remembering accurately, he basically says don't use a conditioner -- just use their regenerator. Of course he wants to sell them, but I think his videos are popular because he seems to bring a lot of objective engineering knowledge into his videos. So, as a novice, on the one hand I hear that some conditioners are different or even better than regenerators. On the other hand, I hear Paul saying, the regenerator is the only way to go. The idea of trying both is a fairly onerous experiment, given how much these can cost, how hard to ship, and how hard to try them side by side. 
Preferred the Chang Lightspeed’s over the Audioquest Niagara’s myself. Bought 2, had myself some A/B testing session and returned the Niagara 7000. Never tried a power regenerator before though. But would really like to try several of Bryston’s products.
When I purchased and installed my first AudioQuest Niagara 1200 conditioner (with an AudioQuest NRG4 power cord), the improvement was immediately apparent. It took no time to determine it was a worthwhile purchase.

Prior to the AudioQuest, I had owned or auditioned Shunyata, Synergistic Research, PS Audio, Bybee, CorePower and Alan Maher power conditioning products. They all produced some degree of positive change, but none were as dramatic as the Niagara 1200.


I hate to be a PITA but in a controlled AB test I seriously doubt anyone would hear a difference with any of these. If you can tell the difference then one or more of your pieces has a weak power supply. You should identify that piece and replace it. Can battery power supplies be useful? Sure, in very low level power devices like phono stages where noise levels are critical. Preamps maybe. Amplifiers get more complicated and I think the power supply of the amp should be purpose designed to run with a battery. As a example, large capacitors are not needed at all. The battery is in reality a huge capacitor! It's power just has to be regulated. An amplifier would require a lot of battery which is probably the reason it is not done. Channel D's phono stages are run with auto charging batteries.  
@tvad, $1K for a 7 outlet power strip is pretty steep. I got a real nice 10 outlet one for $54.00, with yellow outlets no less. Very cool.