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In Reply to: RE: Explanation of Digital Noise posted by audioengr on October 24, 2014 at 10:19:15
The issue seems to me to be whether the effects Mercman heard are general or specific to his setup. It seems difficult to tune a filter system with inductors to a generalised improvement for all or many systems.
I am curious as to whether the carbon fibre tubes are there to add perceived value, or whether they serve a technical purpose on top of this.
Well before the 70s, Stan Curtis in UK published articles on the tuning of amps and preamps using deliberatively undersized power transformers. It is also well known that by bypassing rectifier diodes to suppress hf transients, one can improve the sound of audio systems. The isolator in question is no exception, although it's 'optimisation' may take some doing.
$4000 + $1200 cable, I'd have to have a prolonged listen to establish credibility.
ps: I can buy an Accuphase or PS audio regenerator for this, bearing in mind that one still needs to separate analog from digital equipment connected to it. I use up to 3 or 4 if I play vinyl.
Follow Ups:
Well before the 70s, Stan Curtis in UK published articles on the tuning of amps and preamps using deliberatively undersized power transformers.
Apologies if I have the details wrong (it was over 30 years ago) but, as I recall it, Curtis let slip in a letter to Hi-Fi News that an amp he developed for Rotel in the 1970s had, by design, a PSU that resonated at the same frequency (90Hz?) as one of the open strings of a bass guitar. It went on to gain a reputation for being excellent for rock music.
See link for more on Curtis's interesting career.
publish letters or articles on tuning power supply to voice his amplifiers. This was what I was referring to, from memory.
1. The price is more reasonable than £1 = $1
2. There is local service
A product like this is specific to one's system. Perhaps your computers with linear power supplies and hard drives would not benefit. I agree, I would never purchase anything like this without trying it first. Also, the price is US dollars. In the UK, the price is probably at least 30 % more.All a reviewer can do is try the product and listen. I liked it enough to want to keep it.
I noticed that the $5000 Triton is 5500 pounds in the UK or $8848.00.
Edits: 10/25/14
If I were spending this kind of money, I would buy a Plasmatron from Chris VenHaus. VHAudio.com. This thing really works for digital. Not a small improvement either.
Where have you heard it? Has it been reviewed? I went to VHAudio.com to see a picture and description. It comes off there like one of those snake oil too-good-to-be-true(except for price) items, but I want to keep an open mind, so tell me more if you can.
Okay, here's the scoop: I used one at a show because Chris came in the room and lent one to us. The two exhibitors in the room (one myself) were so impressed with the improvement that we both bought one. Now I never listen to digital without it.It is different than any other AC power conditioner. I believe it drops the AC voltage a tiny bit and uses that headroom to regulate the voltage. It is an AC voltage regulator. You can see the Thyratron tubes pulsing at certain times during the day when the power is fluctuating more. It is quite a light show and makes the digital sound so much better, improving dynamics, clarity and liveness.
Steve N.
Edits: 10/26/14
"It is different than any other AC power conditioner."
Which I take to mean different in effect. How can you resist trying to measure and understand the mechanism? It may not be subtle at all...
Rick
The units contain 2 Thyratrons presumably as rectifiers of sorts.
The name Plasmatron appears to have been picked to sound hitech. Amongst other things, a Plasmatron can be:
''https://www.vki.ac.be/.../71-12...
Von Karman Institute for Fluid Dynamics
The Plasmatron is a high enthalpy facility in which a jet of plasma is generated in a test chamber kept at sub-atmospheric pressure (between 5 and 200 mbar).''
I mean to ask both about the function each performs, how they differ and how one would use an AC voltage regulator like Plasmatron with a linear power supply.
nfm
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