Atma-Sphere Class D… Amazing

To design a class D amp you can’t just wing it by plopping parts in; you have to do the math and understand the engineering behind it.

An embarrassment that this even needs mentioning. A sad fact there is always someone out there looking to make money off of the ignorance and insecurity of others.

Ralph,

It is the truth that anything conductive on top of the transformer or in the middle will mess up the sound.....so, you don’t want non magnetic stainless steel, brass or anything like that. You want plastic or wood.....wood being preferable. You can tie your transformer down using glue and wire ties.....works great. A steel plate on top of the transformer will mess up the sound. This is truth.

Hot rodding does not always look good.....what do you care what the amp looks like from behind?

You can make an even better AC filter and put it on a board....much better sonically than the ones that are encased in steel.....way better. Audiophile fuses most always make a sonic improvement.....it has nothing to do with voltage drop. They all have a sound (every brand of fuse sounds different)......just like the AC inlet has a sound. The one you are using is not as good of SOUNDING inlet as a Furutech.....and even the various versions of Furutech inlets sound different from each other.

You are wrong about op amps......every opamp made TODAY sounds different from every other op amp made today. None of them have "no sound". The best discrete op amps are simply more real sounding than any "chip" op amp. I have listened to even the latest op amps and still none of them are as good as a great discrete circuit.......they are getting close.....but to get the last bit of depth, palpability and realism......no....not there yet. And any circuit is only as good as the regulators, AC power, fuses. capacitors, bypass caps, wire, resistors (yes, every brand of surface mount resistor has a SOUND).

The reason I KNOW all this is because I do serious listening tests. This is the only way to KNOW something is real. This is not philosophy or something YOU THINK is real. When you hear it....you KNOW. You have to have a willingness to really KNOW and an openess to find out.....it is not about pre conceived notions. You do listening tests to blow your mind.....not to confirm your bias. The ego wants to define and defend. The soul wants to expand and love. The ears just listen and know. The heart feels and knows.

Kuribo,

Being right and making people wrong is just an ego game. If you have not listened with an open mind to what I am taling about then you have NO KNOWLEDGE....just words. Knowledge is direct experience....not "thinking you know". If you want to KNOW something about audio....then you have to listen.....without prejudice. Are all the thousands of people worldwide who have listened to audiophile fuses and love them and describe the sound of different brands all hypnotized by the "snake oil salesmen"?.......are we all that stupid? CAN WE TRUST OUR EARS?........I believe so. What I share with others is what I have learned from listening. When I get a benefit sonically, I want to share it with the world because most people who LISTEN and TRY what I suggest find the same truth....they hear pretty much the same thing and their sound is benefited. I want people to have better sound....that is why I share......what is your purpose here?

I want people to have better sound....that is why I share......what is your purpose here?

Of course I listen, I just don’t put much stock in the fabulous, unsupported claims posted as fact by a biased, self interested, guru constantly peddling his wares on a non-commercial venue.

We each have our own truth, which isn't always the same truth for each of us. Your problem is you think your truth is the only truth, or at least act that way as it is fundamental to your scam. You might garner more respect if you actually designed an amp on your own rather than messed with solid, well engineered products of others, advertising your "improvements" as "truth", when they are unsupported by any actual legitimate testing. You are a living testament to audio nervousa, numerous listening biases, and ignorance.
 

So, what you are saying is: Your purpose here is to make sure everyone knows that what I say cannot be trusted"? Wow, that is a very high purpose. Your soul must be celebrating. So, what wares am I peddling with my post?

You can test FOR YOURSELF....what I say.....by trying it in your system....and see if you hear any difference or not. Of course, if you do listening tests with total prejudice then you will never hear anything. If you live in the bay area you can come over to my house and I will demonstrate things that will blow your mind to kingdom come. Are you open to learning? Or do you want to just say the same things over and over?

Since you do not listen to the things I state....then you have no knowledge....plain and simple.....you just have a thought that what I say is wrong......but you will not test it yourself....sad.....so easily tested.

The thousands of audiophiles all over the world that listen to wires, fuses, jacks, etc......are LIVING PROOF that these things are real.  What proof (listening tests) do you have that what they all say is wrong?  Please share.

@ricevs

So what you are saying must be that you have listened to the new Class D amplifiers from Atmasphere, you have tried the modifications you suggested in these amps and you have identified each of your mods as improvements? You state that op-amps "upgrades" in the Atmasphere will improve things but Ralph clearly stated that his circuit is different so the differences in op-amps are moot, the speaker cable pigtail idea is potentially dangerous and not appropriate in a professionally built product offered to the public for sale and your glue the transformer hack seems kindof semi-permanent let alone goofy.

I’m not saying your tweaks don’t work in pedestrian gear (Topping? The amps you build?) but Ralph stated that your suggestions are not material improvements in his design.