Carlos' snubberized Gainclone Power supply

[carlosfm]

Originally posted by janneman
Any time, Carlos. I remember having some nice Dao wine, is that from your area?

Dão.
Yes, very good wine.

Originally posted by janneman
But, in that case, NO talk about blind/sighted tests, OK? I get so tired of doing what feels like explaining an orgasm to a virgin.

I see...
Better listen to some music, then.

[peranders]

Originally posted by carlosfm
You kicked Phred out of this forum, do you expect him to register again just to answer you?

Fred has retired by his own request and he will answer me, he usually does. You don't know everything Carlos.

[Peter Daniel]

Originally posted by peranders
A question to skilled designers (I'm sorry if I forgot somebody)
Mr. Carr, Mr. Pass, Mr. DiGiacomo, Mr. Dean, Mr. Elliot, Mr. Holton, Mr. Clausen, Mr. Curl, Mr. Boström, Mr Dieckmann, Mr. Loesch, Mr. Andersen, Mr. Daniel and many more, do you use "snubbed" power supplies? If yes, why? If no, why not?

I certainly cannot be regarded as skilled designer, as I mostly build my equipment following intuition and good advice (and of course my ears), but whenever such advice appears, I try things.

You might noticed that in a past I had quite big arguments regarding Zobels and regulated supplies for GC amp; I simply didn't like them.

However, as I mentioned already in this thread, last week I tried Carlos' suggestion with regards to snubbers in GC supply (and big caps) and right away I liked the results. It is better even comparing to battery supply I was using up untill now. There is more bass slamm but at the same time the mids and highs are not veiled by anything (like it was in a case of regulators). There is more midrange presence and dynamics, but also what suprises me, more micro detail, something I wouldn't really expect.

The whole thing makes up for an improved GC supply and I would greatly recommmend it to everybody. Well done Carlos.

PS: please note that I'm using pretty good components overall: BG N caps on the PCB and Jensen 4 pole caps after rectifiers, YMMV.

[Greg Erskine]

janneman,

I too have been sceptical about testing methods of my latest amp mods because 9 times out of 10 the change suggested by forum members results in an improvement. Most of the results were as I had expected BEFORE I did the mod. This is too good to be true?? Are the forum members that good?? or have I been lucky.

Anyway I am very happy with my "perceived" or otherwise changes especially the snubbered PSU. I could be deluding myself but what the heck... I'm happy.

Maybe this is a right brain, left brain thing where logic and emotions are battling for supremacy. I think people should follow what they believe is right and leave others to do the same.

[carlosfm]

Originally posted by Peter Daniel
I certainly cannot be regarded as skilled designer, as I mostly build my equipment following intuition and good advice (and of course my ears), but whenever such advice appears, I try things.

You might noticed that in a past I had quite big arguments regarding Zobels and regulated supplies for GC amp; I simply didn't like them.

However, as I mentioned already in this thread, last week I tried Carlos' suggestion with regards to snubbers in GC supply (and big caps) and right away I liked the results. It is better even comparing to battery supply I was using up untill now. There is more bass slamm but at the same time the mids and highs are not veiled by anything (like it was in a case of regulators). There is more midrange presence and dynamics, but also what suprises me, more micro detail, something I wouldn't really expect.

The whole thing makes up for an improved GC supply and I would greatly recommmend it to everybody. Well done Carlos.

PS: please note that I'm using pretty good components overall: BG N caps on the PCB and Jensen 4 pole caps after rectifiers, YMMV.

Yes, spot on.
Maby one day some start realizing that it's possible to make a high-end chip-amp.

[ThorstenL]

Konnichiwa,

Originally written by Floyd Toole
When you know what you are listening to, there is a chance that your opinions might not be completely unbiased.

But he forgot the corollary, namely:

"When you DO NOT know what you are listening to, there is no garantee that your opinions might be completely unbiased."

Removal of one type of bias only is insufficent to ansure a truely unbiased evaluation.

Originally posted by janneman
Well, there are people who have REALLY tested this, and they don't agree.

But the same people have not botherd to provide counter tests which allow them to illustrate the relevance of blind tests. They merely illustrated that people in blind and sightest tests react differently, at a statistcally significant level. This does not per se imply that one tests result are more accurate than the other test results.

Sayonara

[carlosfm]

Originally posted by peranders
Fred has retired by his own request and he will answer me, he usually does.

Don't count on that.
I know that he knows perfectly how to explain this PSU like I didn't see anybody do it here.
But that I have received on my PM today, so it's private.
What I'm absolutely sure now is that my ears are in shape, they are a good tool, and that with this PSU I was on the right path.

Originally posted by peranders
You don't know everything Carlos.

Maby more than you think.

[Greg Erskine]

Originally posted by Peter Daniel
You might noticed that in a past I had quite big arguments regarding Zobels and regulated supplies for GC amp; I simply didn't like them.

Funny you should mention zobels, that is the one thing that made no "perceived" difference to the three amps I tried them on. But, BEFORE I tested them I DIDN'T think they would make a difference. So another case of proving myself right. I beleive the issue may be speaker/cable related and YMMV.

[carlosfm]

Originally posted by Kuei Yang Wang
Konnichiwa,
...This does not per se imply that one tests result are more accurate than the other test results.

Sayonara

Yes Kuei, absolutely.
But nevermind... it's useless...
Brain damage ahead.

[carlosfm]

Originally posted by grege
I beleive the issue may be speaker/cable related and YMMV.

Of course it is...