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LSA Voyager GAN Amplifier

Just got mine last week.  After 24 hours of play all I can say is that this is not your father's class D amplifier.  There is not one thing about its sound that reminds me of the class D gremlins that I do not like.  The low end filled in and now has deep impact, the midrange is the love child of a beautiful tube and clean hybrid amp - just gorgeous.  Highs are very clean and extended. Spatial cues are top notch. My system has had some damn good tube and solid state amps in it before and it has never sounded this good.  I am blown away with the quality of sound coming from class D amplification at this price point.

This 300 wpc amplifier is a real winner.....
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mivmike
47 posts
 

@mivmike -- you didn't even know how to use it 3 days ago, sure your stuff went up ...

Yeah I've only had the unit for 3 years and designed several products with it. But someone who's never used one before knows better. And before I bought one I worked with people who did. 

kuribo
524 posts
 

Don't expect to get respect from Bruno when he knows what he is talking about and you do not.

 

This....

 

mivmike
47 posts
 

Don't expect to get respect from Bruno when he knows what he is talking about and you do not. Hysteresis in the inductor is just yet another form of non linear distortion, like any other distortion. If you apply negative feedback it gets reduced by a compensatory amount, and his amps have a lot of feedback because the can.

The inductor is in the feedback loop, hence any hysteresis distortion is drastically reduced by the feedback.

He is not saying it does not exist at some point in the circuit, he is saying that he effectively eliminates its audible effects, which is self evident from the distortion measurements.

 

You just learned about hysteresis distortion tonight from the articles I shared. And you're already an expert!

cindyment's avatar
cindyment
351 posts
 

@mivmike 

You really need too learn more, and type less.

They Hypex modules have the inductor in the feedback loop. The Purifi are an advancement, but they are just "better" not architecturally that much different, not even the components are that substantially different. They are an evolution not a revolution.

kuribo
524 posts
 
 
 

I told Bruno the only way you would know if you got rid of the hysteresis in a ferrite coil would be to A/B his coil with an air core coil and listen. This is how you know somethng.....by actual listening tests......not by a made up measurement test that has no basis in sound quality.
 

Measurements are objective, they have no bias. They have a basis in reality, unlike subjective listening that varies from person to person. If there was one best sound, there wouldn’t be so many different and successful amps in the market place. Your idea of good sound is just that, your idea. It has no basis in reality for anyone else. Eye witness testimony has been proven time and again to be unreliable. Your ear witness testimony is flawed for the same reason.

 

If Bruno listened to everything he did and was all knowing.....then maybe not.  He does not listen to everything he does and is not all knowing. 
 

Bruno produces products that amplify a signal as cleanly as possible. If people like distortion, they can add it themselves in any flavor they prefer. He doesn't push his subjective tastes on others and claim he knows what sounds "best" -he isn't all knowing but he does know that.

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