Moskido - Hybrid Aikido/MOSFET amplifier

[Wavebourn]

Originally Posted by beau2317

Whatever. I don't know how you can judge the practical sound quality SE vs PP moskidos as I don't think you have heard either, right?

Not right. I heard what may be called grandfathers, fathers, mothers, and children of your Moskido.

And as for "To minimize THD in push-pull amp it have to be biased in class AB" I disagree. Class A will have less THD than class AB. And if your theory says otherwise then the theory does not hold up in practice. Moskidos clearly do sound better when biased class A and the more bias the better the sound.

No, class A would not have less THD than the same push-pull biased in class AB.

Edit: also please consider that less THD does not mean less distortions. Like, in order to improve mean temperature averaged over the clinic it may be good to allow some patients to develop room temperature. Resulting number may be perfect, while some patients very dead.

[beau2317]

Not right. I heard what may be called grandfathers, fathers, mothers, and children of your Moskido.

You obviously know more than anyone else. Oh sorry, I meant to say "that sounds like pretentious drivel"

No, class A would not have less THD than the same push-pull biased in class AB.

That must be why Class A amps have such a bad sound quality. Does this perhaps tell you something about your theory?

[Wavebourn]

Originally Posted by beau2317

That must be why Class A amps have such a bad sound quality. Does this perhaps tell you something about your theory?

I leave you on this exact place to meditate, why you don't see so many biased in class A push-pull amps?

Peace Profound!

[beau2317]

I leave you

Please do.

[Wavebourn]

Originally Posted by beau2317

Please do.

One condition: you reveal the theory according to which biased in class A push-pull amps have less distortions than other amps. I have many theories in my collection, but this one never saw.

[TheGimp]

Top lure? I'll bite.

Class A PP takes more power than Class AB1 or AB2.

For commercial products it matters and means larger OPTs and Larger power Transformers. Therefore the amp is to be cost more and is placed in a position of disadvantage against a similarly rated AB1 or AB2 amp.

With the availability of GNFB to reduce THD to a meaningless number cost becomes a major factor for mass produced and marketed products.

Marketing matters.

No, I'm not cynical. Why do you ask?

[Wavebourn]

Originally Posted by TheGimp

No, I'm not cynical. Why do you ask?

I agree with you: PP is optimal if watt per buck matters. If not, SE is preferable.

[beau2317]

SE amps are meant to sound good, but they are not noted for low distortion, so you are contradicting yourself.

And your comment

Not right. I heard what may be called grandfathers, fathers, mothers, and children of your Moskido.

is like saying that you have played golf with all of Tiger Woods' family, so you know that the man can't be any good.

Get over yourself.

[piano3]

Originally Posted by Wavebourn

One condition: you reveal the theory according to which biased in class A push-pull amps have less distortions than other amps. I have many theories in my collection, but this one never saw.

Why don't you answer Wavebourn's question instead of being rude to him?

[beau2317]

Because he is on the whole not asking questions, he's making assertions. And his assertions are along the lines of "My theory is correct, therefore it must sound better"

The arguments over sound quality between various topologies are long running and can't be settled by simply saying "my theory is right"

Take for instance his first assertion:

PP can't distort less by definition

I was not aware that the definition of a PP amp includes the fact that it distorts more than an SE amp. It may be true, but it's not true "by definition". More likely the answer is "it depends"

And even if the measured distortion *is* more, so what?? It's well known among those who actually design, build and listen to amps that some things run counter to theory.

Later on he asserts:

It (PP) can't sound better than SE (both practically and theoretically)

This is total rubbish. I have heard plenty of PP amps that sound better than SE amps.

My theory is simple: if it sounds better, it sounds better.

Again, for example, trying to pretend that he knows all about how moskidos sound because he "heard what may be called grandfathers, fathers, mothers, and children of your Moskido" is arrogant nonsense. He may think he knows, but the world is full of people who think they know more than they actually do.

I would for instance not presume to know how his "Tower III High end hybrid" amp sounds. And if I were to go onto his thread talking nonsense I would expect to be scorned.