Class D Audio GAN FET Amps

[antcollinet]

and I suspect it is because of their much higher switch frequency at 1.1MHz.

Or, much more likely - good old perceptive bias.

 

[Bending]

Or, much more likely - good old perceptive bias.

Can you explain why I should have a bias for Orchard vs other class D modules

 

[Mort]

Can you explain why I should have a bias for Orchard vs other class D modules

You might know best. The subconscious plays many tricks. We are all subject to the bias.

 

[voodooless]

Can you explain why I should have a bias for Orchard vs other class D modules

Does it matter why? Bias can be ,and most often is, unconscious. This is why you cannot shut it off and why controls are needed when making any such comparisons.

 

[Bending]

There are some comparative measurements https://audioxpress.com/article/fre...d-audio-bosc-and-purifi-audio-eigentakt-eval1 but these are not done with the newish Starkrimson 25 so that why I would like to see measurements of them

 

[antcollinet]

Can you explain why I should have a bias for Orchard vs other class D modules

Perceptive biases are how our human senses work— all of them. Don’t think of it as a prejudice— it is more analogous to a system. Bias— like biasing a transistor. They are often the reason optical and aural illusions work, for example.


What we hear is impacted by what we know, what we believe, how we feel, our life experiences, what we see, etc. No one is immune to this if they are human— it is how we are built. In fact, we would be unable to function if our senses were not filtered by our unconscious brain. Everyone is subject to this; it happens at the unconscious level, and it is not possible to avoid it— even when we are aware it is happening.

Biases are why controlled testing is always needed when human perceptions are involved— for example, double-blind trials of medicines.

Also— why whenever trying to test human perceptions of sound, well-controlled blind listening is needed.

 

[Bending]

Perceptive biases are how our human senses work— all of them. Don’t think of it as a prejudice— it is more analogous to a system. Bias— like biasing a transistor. They are often the reason optical and aural illusions work, for example.


What we hear is impacted by what we know, what we believe, how we feel, our life experiences, what we see, etc. No one is immune to this if they are human— it is how we are built. In fact, we would be unable to function if our senses were not filtered by our unconscious brain. Everyone is subject to this; it happens at the unconscious level, and it is not possible to avoid it— even when we are aware it is happening.

Biases are why controlled testing is always needed when human perceptions are involved— for example, double-blind trials of medicines.

Also— why whenever trying to test human perceptions of sound, well-controlled blind listening is needed.

I worked part of my live in the Pharma industry and I know about double blind testing but I can not assemble an amp module with my eyes closed. Also if I bought 2 different modules my bias for one or the other would be at least quite small. But as I said I still would like to see measurements especially is there a significant difference at higher frequencies

 

[antcollinet]

but I can not assemble an amp module with my eyes closed.

No one is asking you to. But generally in this place - subjective uncontrolled descriptions of sound differences which are vanishingly unlikely to actually exist in the sound-waves reaching your ears - are going to be questioned. Uncontrolled listening is insufficiently reliable to give those descriptions any validity.

You are of course, free to select gear you like based on any criteria you like. Advice from here though will generally be to not worry about the sound - which for electronics is pretty much a done deal (given decent measurements) - but focus on form, features, support etc.

 

[ChefBrunch]

I really like the implementation of hypexNcore on the TEAC 505 and 701 series.

Not just off the shelf, fully balanced circuits dual mono and a lot of engineering on the power supply and special tuned Ncore modules.

A hint of smooth warmth with extreme detail and dynamics. Musical but touching the analytical side.

 

[Mort]

A hint of smooth warmth with extreme detail and dynamics. Musical but touching the analytical side.

Maybe this is sarcasm? It's going to be transparent like all other ncorehypex.

 

[voodooless]

I worked part of my live in the Pharma industry and I know about double blind testing but I can not assemble an amp module with my eyes closed.

Are pharmaceuticals made by blindfolded people? What a silly thing to say..

Also if I bought 2 different modules my bias for one or the other would be at least quite small.

It doesn’t matter what you think. You have no control over your biases. Maybe you linked the newer enclosure better? Maybe it’s the price differences between the modules? It can be so many things. But most of all, any volume difference more than about 0.1 dB will throw off any reliable comparison because the perceived frequency response difference will actually make them sound different.

 

[ChefBrunch]

Maybe this is sarcasm? It's going to be transparent like all other ncorehypex.

It's not off the shelf, TEAC has them specially tuned and made for them...

Just a touch less sterile than off the shelf ncore modules....ive heard a few other Ncores and purifi, I like the TEAC implementation best. It's a little more full....sort of like classic denon sound with nice upper midbass.

The implementation makes a HUGE difference along with power supply. The modules has less to do with it....but Ncore is a solid performer. Lots of builders have gone back to it over better measurement newer modules....but measurements aren't everything.

 

[voodooless]

but measurements aren't everything

But controlled tests are… I’m sure you did not do such a thing.

 

[ChefBrunch]

But controlled tests are… I’m sure you did not do such a thing.

If you want to believe measurements are everything thats up to you.

I'm a subjective > objective listener

TEAC gear is exceptional

 

[Mort]

It's not off the shelf, TEAC has them specially tuned and made for them...

Gotcha. Not my cup of tea. I'm going to DSP later anyway. Prefer transparency up front.

I've got buckeye 6-ch ncore running on a minidsp htx and philharmonic audio speakers for home theater. 'warmth' gets added via DiracLive.

 

[voodooless]

If you want to believe measurements are everything thats up to you.

I'm a subjective > objective listener

TEAC gear is exceptional

So why are you even here if you deny the core science this forum tries to promote?

 

[RexrothPigeon]

I'm a subjective > objective listener

This is audio science review. The rest of the hi-fi internet matches your approach; this place very definitely doesn't.

 

[boXem]

special tuned Ncore modules

They bypassed the NE5532 based input/gain stage as instructed page 7 of the datasheet. 3 resistors removed and 2 jumpers added. Calling this "special tune" is an exageration from the marketing department.

 

[RexrothPigeon]

They bypassed the NE5532 based input/gain stage as instructed page 7 of the datasheet. 3 resistors removed and 2 jumpers added. Calling this "special tune" is an exageration from the marketing department.

bUt iT's LeSs sTeRiLe nOw!!!3!

 

[antcollinet]

It's not off the shelf, TEAC has them specially tuned and made for them...

Just a touch less sterile than off the shelf ncore modules....ive heard a few other Ncores and purifi, I like the TEAC implementation best. It's a little more full....sort of like classic denon sound with nice upper midbass.

The implementation makes a HUGE difference along with power supply. The modules has less to do with it....but Ncore is a solid performer. Lots of builders have gone back to it over better measurement newer modules....but measurements aren't everything.

Do you have any objective evidence that any differences that might result (noise, distortion, frequency response) are at a level that is actually audible? Because at the moment you are just sounding like every other audiophile, deluded by a fancy marketing story.