Ken gave a very informative presentation on a subject that most would find very complex. Thanks for significantly boosting my understanding of the quality of our home electrical and possible solutions. I had to watch this video several times.
How refreshing to see a clearly expert (and diplomatic!) speaker with an open mind and not necessarily just promoting his own products. Thoroughly enjoyable presentation and very educational too. The comment about electric car charging technology is particular food for thought; I would assume it wouldn't be too big a leap to hone existing EV battery technology into physically smaller but still high current capability power supplies for audio equipment which would then ensure a perfect, low impedance DC source. I remember a UK company called Crimson Elektric (I think they're now defunct!) powered their preamplifier from a torch battery and I have heard of enthusiasts that use standard lead-acid car batteries for pre-amp supplies too but, obviously, these are only good for low-ish current applications
28:55. He doesn't need to care about the power factor issue on his linear powered digital equipment. Well regulated linear DC power supplies factor expected AC issues such as transients, short term (1 or 2 cycles) voltage dips and peak waveform distortion into the design. The power factor issue is more of a concern to the electricity company than it is to him. He may benefit from brown out protection IF it is an issue in his area.
Absolute snake oil. The graph at 21:37 is actually how linear power supplies draw current. Try simulate a linear power supply and see how current flows through the capacitor, its only when the rail voltage is higher than the capacitor's voltage that the cap would draw current , so it only happens at near peak voltage. This guy is not a moron, he is a snake oil marketing genius
The bottom line is the ac coming into our homes is not very clean even with today's expensive power regenerators, we have still yet to have products that completely clean and reconstruct the power. And with more electronic devices being plugged in this will only degrade that supply of power.
It's better to listen to your system at night when most are sleep and not using all manner of appliances, lights, and other things that pollute the ac line😀
Bill, It's kind of hard to discern at first. Watching from 20:05 and 35:10 should help. Mains reconstruction recreates amperage/current fluctuation, making incoming 'current' more sinusoidal. Whereas, power regeneration corrects voltage fluctuations. He displays a graph 23:05 showing aberrations of both voltage and amperage sine waves from the same source. I hope you find this useful.
interesting discussion... what always makes me smile is older listeners making statements that include words like 'tremendous', 'night and day', 'vastly' and other terms meant to express a high degree of difference... I understand that listening for something implies being educated to recognize that something, but the hearing at that age is so tired and so much less resolving (perfectly normal, just a fact of life) that I question their impressions. the other day I was watching a discussion on super tweeters and the gentleman made the statement that as his age of 71 he's lucky if he hears anything above 16kHz but there are other ways to sense/detect ultrasounds. without trying to being rude, one is lucky to hear above 16kHz at the age of 40, if their hearing is healthy and is was never abused. it's not just the high pitch that's affected by aging, hearing loss affects the whole audible range, the equal-loudness contour gets modified, etc, and there's nothing we can do about it, except protect our hearing to the best or our abilities... so let's start accepting the reality of life :} *fun fact: kids use ring tones in class that the teachers can't hear. if that's not funny and cute to you, we can't be friends :} video link for reading some comments: th-cam.com/video/VxcbppCX6Rk/w-d-xo.html
Ken gave a very informative presentation on a subject that most would find very complex. Thanks for significantly boosting my understanding of the quality of our home electrical and possible solutions. I had to watch this video several times.
How refreshing to see a clearly expert (and diplomatic!) speaker with an open mind and not necessarily just promoting his own products. Thoroughly enjoyable presentation and very educational too. The comment about electric car charging technology is particular food for thought; I would assume it wouldn't be too big a leap to hone existing EV battery technology into physically smaller but still high current capability power supplies for audio equipment which would then ensure a perfect, low impedance DC source. I remember a UK company called Crimson Elektric (I think they're now defunct!) powered their preamplifier from a torch battery and I have heard of enthusiasts that use standard lead-acid car batteries for pre-amp supplies too but, obviously, these are only good for low-ish current applications
28:55. He doesn't need to care about the power factor issue on his linear powered digital equipment. Well regulated linear DC power supplies factor expected AC issues such as transients, short term (1 or 2 cycles) voltage dips and peak waveform distortion into the design. The power factor issue is more of a concern to the electricity company than it is to him. He may benefit from brown out protection IF it is an issue in his area.
Absolute snake oil. The graph at 21:37 is actually how linear power supplies draw current. Try simulate a linear power supply and see how current flows through the capacitor, its only when the rail voltage is higher than the capacitor's voltage that the cap would draw current , so it only happens at near peak voltage. This guy is not a moron, he is a snake oil marketing genius
Can someone tell me the bottom line?
The bottom line is the ac coming into our homes is not very clean even with today's expensive power regenerators, we have still yet to have products that completely clean and reconstruct the power. And with more electronic devices being plugged in this will only degrade that supply of power.
The bottom line is he believes you should buy a KCC Scientific conditioner.
@@cgirl111 and that 'one is born every day'
ac is not very clean, but he has no mechanism by which this would affect sound.
It's better to listen to your system at night when most are sleep and not using all manner of appliances, lights, and other things that pollute the ac line😀
He never explains how his system is different than a power regeneration. They seem to be the same thing.
Bill, It's kind of hard to discern at first. Watching from 20:05 and 35:10 should help. Mains reconstruction recreates amperage/current fluctuation, making incoming 'current' more sinusoidal. Whereas, power regeneration corrects voltage fluctuations.
He displays a graph 23:05 showing aberrations of both voltage and amperage sine waves from the same source.
I hope you find this useful.
@@ubermind-tim How is this done?
interesting discussion...
what always makes me smile is older listeners making statements that include words like 'tremendous', 'night and day', 'vastly' and other terms meant to express a high degree of difference... I understand that listening for something implies being educated to recognize that something, but the hearing at that age is so tired and so much less resolving (perfectly normal, just a fact of life) that I question their impressions.
the other day I was watching a discussion on super tweeters and the gentleman made the statement that as his age of 71 he's lucky if he hears anything above 16kHz but there are other ways to sense/detect ultrasounds. without trying to being rude, one is lucky to hear above 16kHz at the age of 40, if their hearing is healthy and is was never abused. it's not just the high pitch that's affected by aging, hearing loss affects the whole audible range, the equal-loudness contour gets modified, etc, and there's nothing we can do about it, except protect our hearing to the best or our abilities... so let's start accepting the reality of life :}
*fun fact: kids use ring tones in class that the teachers can't hear. if that's not funny and cute to you, we can't be friends :}
video link for reading some comments: th-cam.com/video/VxcbppCX6Rk/w-d-xo.html
You have to understand that whatever our ears can't catch, our brain can create 😁
@@rusedgin great point :}