John Curl's Blowtorch preamplifier part III

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I do, and my sense of confusion tells me to start running ......................ah, that’s better. :spin: ToS

See post 23827 - "Nope" means no
Are you guys native English speakers?
This is getting hilarious - your sense of confusion is caused by the amateur sleuths like Evenharmonics & believing their stupidity

This is reminiscent of the mcGurk illusion - even when the answer is told to you the illusion is still working - shows the power of the really strong bias, that is in play here - belief
 
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The amplifier is a hybrid, tube output stage and solid state front end which I developed (indeed the whole amplifier) over 2 and half years. The frontend had to be solid state because I needed near 800V peak-to-peak into the output stage that runs at a gain of about two - simply could not get a tube circuit to do that. The input is transconductance and the current then drives Vishay power MosFETS that are rated at 900V and have characteristics of Pentodes. I was able to get the circuit computer modelled by the head/manager of Power Electronics (part of SpaceX and Elon Musk's group of companies) and he said it was incredibly linear and ultra-low distortion (achieved without feedback). The operating gain is about 300, it is fully differential (long-tailed).

If I could have done it with tubes I would have, but it is simply not possible. What is more, it sounds better than any tube gain stage I have heard and trust me I have heard my fair share in more than fourty years.

Thx Joe, I completely agree with your approach. Solid state sound is usually determined by the output stage. Replacing it with tube is a good idea. For input i prefer solid state with its high transconductance and typical class A operation. I'm also with local feedback of the output stage. Currently I'm trying class B, next I will try class A Extrema output stage as suggested by PMA.
 
From my perspective, this is what it is all about:

It's interesting, and indeed shows a kind of objectivity, that Paul McGowan and yourself are less interested in whether the sound comes for transistors or tubes, as long as the music connects. So Paul, a solid state guy, brought in Bascom King who said "you know that will means it will have tubes" and now we see small signal tubes in PS Audio power amps. It's hybrid and that works for them. I do hybrids in reverse because that is what I do to get the best results, as long as the music connects.

Is there not some kind objectivity going on here? I think so, then why can't others here be gracious and see that is the case?
 
See post 23827 - "Nope" means no
Are you guys native English speakers?
This is getting hilarious - your sense of confusion is caused by the amateur sleuths like Evenharmonics & believing their stupidity

This is reminiscent of the mcGurk illusion - even when the answer is told to you the illusion is still working - shows the power of the really strong bias, that is in play here - belief

mmerrill99,

The only stupid person here is me - hence my confusion over your identity. For awhile, I actually thought you were Merrill of Merrill Audio, but I was wrong. One thing that puzzles me though, is when you talk about audio retail, you sound like a behavioural psychologist, but when asked for a straight answer your responses always leave me confused. I guess that I’m not really that bright and a bit gullible. :bfold:

A bit of advice Merrill, watch out for that evenharmonics chap, he has a very sharp tongue and can be a bit dangerous. I try my best to get on with people here, and sometimes I say stupid things that I regret - but him? He scares me. :scared:

ToS
 
Correct me if I'm wrong here - and overall, I don't really care - but I've never seen mmerrill99 actually unambiguously state the he is not merrill audio and has no connection with that company. I've seen where he implies that, but there always seems to be enough ambiguity... Subjective, eh? 😀
 
The amplifier is a hybrid, tube output stage and solid state front end which I developed (indeed the whole amplifier) over 2 and half years.....
Here's another approach, switchable NFB and no phase compensation in FB loop.
amp.png


Dan.
 
mmerrill99, The only stupid person here is me - hence my confusion over your identity. For awhile, I actually thought you were Merrill of Merrill Audio, but I was wrong. One thing that puzzles me though, is when you talk about audio retail, you sound like a behavioural psychologist, but when asked for a straight answer your responses always leave me confused. I guess that I’m not really that bright and a bit gullible. :bfold:

ToS, don't be confused, as your confusion is by design. There are imo (only) two possibilities for that kind of action by mmerrill99: (1) He is indeed Merrill Audio but he wanted to hide his identity. (2) He is not Merrill Audio but he wanted to make fun of his 'opponents' by always putting them in silly positions and wrong conclusions due to their wrong assumption.

Once, I was responsible with an (ERP) system audit. One of the auditors was known worldwide as being 'difficult'. He always refused when the management ask him to go out for dinner or having fun etc. Our system was newly implemented so there were weaknesses. But I prepared on one key aspect, made it okay, then made it as if it was problematic. For three days he chased that one aspect only to find out at the end of the day that there was nothing wrong with it. I guess he at last realized that he has messed up with a wrong person 😀
 
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Correct me if I'm wrong here - and overall, I don't really care - but I've never seen mmerrill99 actually unambiguously state the he is not merrill audio and has no connection with that company. I've seen where he implies that, but there always seems to be enough ambiguity... Subjective, eh? 😀

FFS
Post 23827

ToS, don't be confused, as your confusion is by design. There are imo (only) two possibilities for that kind of action by mmerrill99: (1) He is indeed Merrill Audio but he wanted to hide his identity. (2) He is not Merrill Audio but he wanted to make fun of his 'opponents' by always putting them in silly positions and wrong conclusions due to their wrong assumption.

Once, I was responsible with an (ERP) system audit. One of the auditors was known worldwide as being 'difficult'. He always refused when the management ask him to go out for dinner or having fun etc. Our system was newly implemented so there were weaknesses. But I prepared on one key aspect, made it okay, then made it as if it was problematic. For three days he chased that one aspect only to find out at the end of the day that there was nothing wrong with it. I guess he at last realized that he has messed up with a wrong person 😀

Correct me if I'm wrong here - and overall, I don't really care - but I've never seen mmerrill99 actually unambiguously state the he is not merrill audio and has no connection with that company. I've seen where he implies that, but there always seems to be enough ambiguity... Subjective, eh? 😀

FFS
Post 23827

I do find it interesting how people focus on the poster rather than the post though so yes I find it revealing of some posters bad intent & attempts to win debates at any cost - when those people believed I was Merrill Audio how they vociferously attacked their "illusion of me", "their illusion of my products" & Merrill Audio business itself trying desperately to do commercial damage.

That's what I find really interesting & shameful.

Maybe people should look in the mirror I have provided for them & examine their motivations & posting?
 
.......For three days he chased that one aspect only to find out at the end of the day that there was nothing wrong with it. I guess he at last realized that he has messed up with a wrong person 😀

johnego,

I am glad that you (and it looks like everyone else 😛) has seen through my little subterfuge. I do know who Merrill is. Why oh why he plays his silly game is simply beyond me. Well, I do know, but really can’t be bothered, as you have explained everything worth saying for me. For that I am humbly grateful.🙂

Oh, and by the way, I’m not really scared of evenharmonics, he thinks I’m funny :mischiev: and a bit of an innocent :angel: - more fool him, eh? 😀

Merrill, you protest far too much for your own good. :yes:

ToS
 
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You think exposing the shameful way some people attack what they thought was a commercial venture & to do harm to that business, is protesting too much?

You should be careful with intentions to trick/fool people to teach them a lesson or to make them see/believe what you think is reality.

You may recall a story about someone hiding a brass band at -60dB or -80dB to teach stupid audiophiles they can't hear anything that low level. If anything it may have shown a very specific effect relating to a low-level signal that is uncorrelated with what brain activity is focused on listening to/for.

In the area of business, there are commercial ventures that are perfectly honest, ones that are highly dishonest, and many that are at times somewhere in between the two extremes.
There are also many different biases among observers as to whether customers of some luxury goods are having a fraud foisted upon them that they would not otherwise suffer, or at the other extreme, that there is market demand for somewhat crazy, expensive stuff, and just as capitalism is supposed to work, market forces will result in some entrepreneurs working to fill that market void.

EDIT: As far a shaming goes, and for one case that may come to mind, Mr.Harmonics' personality and biases won't change as a result of him being tricked one time. He may or may not quiet down for a period to watch the social fallout (to see what other's think about the significance of your revelation and shamefulness claim), but eventually he will most likely revert to being the person he naturally is.
 
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You think exposing the shameful way some people attack what they thought was a commercial venture & to do harm to that business, is protesting too much?

Do you wish to defend such behavior?

mmerrill99,

Are you going to continue protesting when you could be working? :razz:

Stop deflecting. You are either Merrill of Merrill Audio or someone else. Nobody really cares anymore, all we want is for you to be >you< instead of being an international man of mystery. It’s an old trope that’s had its day, and this is why you always end up in a pickle.

ToS
 
Could you please describe the amplifier in detail? I think I know what the source can offer, I know what the speaker can offer, but amplifier is unique in their ability to show or hide sound information. Are you using tube amp?
If you bought such amp, you should return it for a refund. If you built such amp, it's time to redesign.
mmerrill99,

The only stupid person here is me - hence my confusion over your identity. For awhile, I actually thought you were Merrill of Merrill Audio, but I was wrong.
Keep in mind that when you asked,
"merrill99,

Were you once Merrill Audio?"
"Nope"

Then when you asked, "Are you, or are you not, the owner of Merrill Audio?"
You don't get direct answer. Something for you to chew on.
 
If you bought such amp, you should return it for a refund. If you built such amp, it's time to redesign.

Here is a challenging question for you (to challenge your concept of right or wrong regarding amplifier design). We have heard: (1) If your system is correct, all recording will tend to sound good, (2) If your system is correct many recordings will be unusable due to their poor quality. What is your understanding of this situation, especially related to amplifier?
 
Here is a challenging question for you (to challenge your concept of right or wrong regarding amplifier design).
Right or wrong regarding amplifier design? Where did you get that from?
We have heard: (1) If your system is correct, all recording will tend to sound good, (2) If your system is correct many recordings will be unusable due to their poor quality. What is your understanding of this situation, especially related to amplifier?
Who made those (1) and (2) statements?
 
It's interesting, and indeed shows a kind of objectivity, that Paul McGowan and yourself are less interested in whether the sound comes for transistors or tubes, as long as the music connects. Is there not some kind objectivity going on here? I think so, then why can't others here be gracious and see that is the case?
Joe and JC yes you are correct the sound has to be 'right' or there is no deep enjoyment connection, and who cares how it came about !.

As to the deep reasons why the system enables the music to connect or not connect is a subject in itself and as we know standard stationary signals test measurements are not a reliable indicator. To some extent standard measurements indicate the degree of information loss and the harmonics profile indicates the acceptability of the 'inevitable' distortions but this is not the whole story. It seems that energy crossing a vacuum space 'does something' to the sound as do transformers that is not explained by standard measurements, or is it simply the materials used in these two examples sets the tone ?. Interestingly Goop by proximity or contact changes and clarifies behaviours of transformers (and magnets and capacitors) and tubes.......it seems that there are magnetic field and electric field materials interactive behaviours that are not considered by conventional (elementary) theory. BQP is another technique that alters system behaviours but is not revealed by conventional theory as we know it.

I made suggestion of experiment using centre tapped 12AX7 heater as 20R-CT-20R or so resistance suitable for use in line output stage or as CFB resistors. Input stage resistances would be another circuit location to differentiate if tube materials are at least somewhat 'to blame' for tube sound that is fundamentally different to SS sound. If I had a couple of 12AX7's around I would try the experiment, anybody else willing, rejected tubes would be fine ?.

Dan.
 
You guys have gotten way past boring and have soiled this thread, please go start another thread and take the bickering elsewhere. You could name it 'Great minds discuss ideas. Average minds discuss events. Small minds discuss people' or something like that. Best you stay away if you are not mentally equipped to politely and positively discuss technical matters and allow others to do so.

Thanks in advance.
 
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You should be careful with intentions to trick/fool people to teach them a lesson or to make them see/believe what you think is reality.
I didn't trick/fool people into anything - they tricked themselves & assumed their own version of reality (I'm sure there's a bias category that covers this? 😀)- that I was Merrill Audio & proceeded to attack from the get-go. I let it run to see how far they would go & to what degree it would keep coming up.

So let's say I was Merill Audio, do you think those attacks on the products & the business itself was fair & justified?

If people hadn't

You may recall a story about someone hiding a brass band at -60dB or -80dB to teach stupid audiophiles they can't hear anything that low level. If anything it may have shown a very specific effect relating to a low-level signal that is uncorrelated with what brain activity is focused on listening to/for.
Sure, but I didn't hear the story about it being a trick to fool stupid audiophiles.

In the area of business, there are commercial ventures that are perfectly honest, ones that are highly dishonest, and many that are at times somewhere in between the two extremes.
I have no opinion about Merrill Audio & their product offerings Vs VFM
But, in general, high-end audio is mostly called high-end because of the high prices, not necessarily the high quality sound. Again, I'm not saying this is the case with Merrill Audio.

There are also many different biases among observers as to whether customers of some luxury goods are having a fraud foisted upon them that they would not otherwise suffer, or at the other extreme, that there is market demand for somewhat crazy, expensive stuff, and just as capitalism is supposed to work, market forces will result in some entrepreneurs working to fill that market void.
Yea, I find a lot of the complaints about high cost products come from people who can't afford them & begrudge those who can.

EDIT: As far a shaming goes, and for one case that may come to mind, Mr.Harmonics' personality and biases won't change as a result of him being tricked one time.
Again, I didn't trick him - he tricked himself with his own assumptions that turned out to be incorrect. I don't particularly care whether he changes or not - in fact I expect him to sharpen his knives for me, now. But he wasn't the only one that ran with these wrong assumptions & became vitriolic.
He may or may not quiet down for a period to watch the social fallout (to see what other's think about the significance of your revelation and shamefulness claim), but eventually he will most likely revert to being the person he naturally is.
Sure. I believe exposing his & others personality traits that allow them to engage in these attacks when they feel they have the backing of the mob, is/was a useful outcome from this.

It what's you do in the privacy of your own home (or when you think you have the agreement of others) that shows true aspects of your personality.

mmerrill99,

Are you going to continue protesting when you could be working? :razz:

Stop deflecting. You are either Merrill of Merrill Audio or someone else. Nobody really cares anymore, all we want is for you to be >you< instead of being an international man of mystery. It’s an old trope that’s had its day, and this is why you always end up in a pickle.

ToS

What are you talking about? - as far as any forum is concerned, I am my posts as is everybody else here - I know nothing more about anybody here other than by what they post & don't really care to investigate other's background/current work, etc - especially if the reason for doing so is just to win a debating point in the next disagreement

I think you should just get over you being led down the garden path by the likes of Evenharmonics & his ilk & projecting your ire with them unto me.

I'm not responsible for your mistaken view of me

Y’all need to get over to gabdx’s house for some shock therapy.🙄

Exactly my point. But, don't bother replying, as I said, it doesn't actually matter to me. Just idle curiosity.

I'm not & never have been Merrill Audio but some here want to live in an illusion for whatever reason. FFS, get over it.

As MM says, you all need shock therapy 🙄
 
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