|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
72.52.96.59
In Reply to: RE: the point posted by Jim Dowdy on January 29, 2015 at 15:53:46
I just asked you who apparently has, what the performance gain is. If you can give me some reasons in engineering speak why an MV would be superior to the Cree diodes I'm all ears.But from my knowledge MV rectifiers which do have a lower voltage drop than diode tubes, they are no match for even a lowly 1N4007 in this application. They do (did) excel in high power applications like subway traction systems and transmitters. But even that was eclipsed by silicon diodes as far back as the 1960s.
Again just what am I to expect in performance gain before I go on a wild goose chase to even find good MVs these days let alone build out the support structure to use them properly?
Edits: 01/29/15Follow Ups:
You should try it if you are curious about exploring sound and the possibilities of higher fidelity.
However, if you are fearful of having your preconceptions challenged, you should run in the opposite direction.
to gusser's supply?
Dave
to many, many similar supplies...and they all sound like absolute crap compared to a simple MV-rectified dual L-filter.
Have you compared?
I haven't and I'm not making any claims about either. Trying to get a basis for your comments on how his supply sounds though.
Sounds like you have a preference and you know what it is, do you think everyone should have the same preference?
Dave
For full-range musical reproduction, I believe so.
That explains your position, not a view I can get with. I wonder how you feel about people that feel similarly but about a different set of preferences.
Dave
I am certainly open to other's opinions/experiences; but if you've built literally dozens of power supplies and find one approach consistently sounds best, it is folly to pretend otherwise.
"you think it sounds best" is somewhat different from "it does sound best" or "everyone else should think it sounds best".
Dave
But I've engaged in literally dozens of listening tests, and the MV rectified L-filter always wins.
Who wants to hear a rectifier? lol
If you can hear that, what you are hearing the windings of the generator at your local power plant.
Maybe they are wound in silver?
....to you.
Dave
Is your point that perhaps 10% thought otherwise?If so, what does that imply?
Edits: 01/29/15
If you're claiming that 90% of listeners will hear a difference with the same circuit but with MV rectifiers (assuming LCLC) and their preference will be for the MV, then I'd love to see evidence of such a consensus.
Dave
You suggest I buy rare and expensive components like MV rectifiers. I simply ask what the expected improvements would be. I further point out some well documented information about MV rectifiers. I have no personal experience, I have never used them.
I just asked, twice now, politely I beleive, what the benefits are over modern diodes.
And this is your sarcastic response:
"You should try it if you are curious about exploring sound and the possibilities of higher fidelity.
However, if you are fearful of having your preconceptions challenged, you should run in the opposite direction."
Exactly how does one kindly answer such a question?
The benefits are that it sounds better.
"Exactly how does one kindly answer such a question?
The benefits are that it sounds better."I ask for some technical information why I should use MV rectifiers and that is all you can offer? I even point out some of the documented deficiencies with MV rectifiers and you accuse me of "running away"
Why can't we carry on a technical engineering discussion as to what differences the MV rectifiers are producing in the final DC output that changes the amps performance?
I think I know the answer. That is, you don't know what is going on in those power supplies from an engineering viewpoint.
You are just another Dennis Fraker!
You sell a few amplifiers you build. Probably circuits from some old magazine and you soldered some parts together and it made sound. Then you sprinkle it with all kinds of audiophile voodoo to kick the price up a few grand.
But you have no clue how these circuits actually work. Your insecurity speaks volumes as well. I post a schematic as you requested and the first thing you do is to challenge me as to why I think it's a superior design. I never said it was. Then you say it sounds like crap! How do you know?
What a phony!
Edits: 01/29/15
I suggested that you try an approach that I believe sounds better. I am unsure what my suggestions have to do with Dennis Fraker...or anyone else.
My sole motivation was to assist (you and) the DIY community in exploring possible sonic improvements; and the reality is that I do not know why MV rectifiers sound better - nor do I believe anyone else really knows the answer to that question.
But just so we're clear: I don't give a rat's ass if you try it or not.
Jim,
Did you run I the same circle as the cat out in Oregon that run 211s with MV rectifiers?
I knew him about 15 years ago. I believe he was a rec. audio guy. I don't recall his name
I'm in metro Atlanta, GA - the only Oregon (Portland area) tube guys I recall are Gary Pimm and Ed Billeci.
I know that Lynn Olsen was originally from there as well...
Does that help?
Yes. Crazy Eddie. He was into MV rectifiers a long time ago. Is he still around?
That's a good question.
Ed and I used to actively trade parts back in the '90s - I saw him at several of the VSACs, but lost track of him about 10 years ago...would love to know where he is.
He always had killer stuff!!!!!
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: