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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.....
jaymark
jerryg123's avatar
jerryg123
3,429 posts
 

Buh Bye Mike.

Best to ignore the sod and his partners (they are ll in his head)

 

mivmike
47 posts
 

The one you indicated as balanced has worse channel matching. The one you indicated as unbalanced, had unrealistic channel matching. 0.005% gain difference. That is highly unlikely on anything "real" two channel.

They’re both single ended cables. Think I don’t know what measured worse?

cindyment's avatar
cindyment
351 posts
 
mivmike

21 posts

The one you indicated as balanced has worse channel matching. The one you indicated as unbalanced, had unrealistic channel matching. 0.005% gain difference. That is highly unlikely on anything "real" two channel.

They’re both single ended cables. Think I don’t know what measured worse?

 

I think you don't understand what the measurements mean and I expect you are using the equipment improperly. Channel matching to 0.005% as your first picture shows is unnatural and highly unlikely. It is difficult to get that from lab grade reference DC sources, let alone a consumer audio device. The second unit at 0.015db difference is still exceptionally good channel matching. The amplitude accuracy of your equipment is 0.7% (0.06db). The changes you are showing are likely well within the short term thermal drift of the equipment, simply from output/input impedance. Balanced is not going to fix the issue. It is even harder to match/maintain perfect gain between channels with balanced taking into account a proper AES balanced connection has match source/load impedance and the absolute output will be a function of those resistors and never accurate to 0.005%, and I would be quite happy if within 0.015db, but even that is highly unlikely.

mivmike
47 posts
 

I was demonstrating how an audio analyzer can measure inconsistencies between cables. When you have hands on experience rather than just reading what the clowns on ASR say you can learn a few things. I measure stuff all the time with balanced connections and the consistency is spot on. 

cindyment's avatar
cindyment
351 posts
 

I was demonstrating how an audio analyzer can measure inconsistencies between cables. When you have hands on experience rather than just reading what the clowns on ASR say you can learn a few things. I measure stuff all the time with balanced connections and the consistency is spot on.

Pretty obvious from my replies AmplifierDude that I have more than enough experience when I can look at your numbers and know whether they are "real" or there is a flaw in them.

I’m kinda new with my analyzer. How do I measure to figure out the THD in the audible band with a 15khz signal? I’m using the dScope software.

https://www.audiosciencereview.com/forum/index.php?threads/what-tells-us-more-practice-or-theory.28502/

These were your exact words from Saturday, November 27, 2021. So you have become a measurement expert in the last 3 days? I stick to my previous comment. I do not think you know how to use your tools properly. Asking how to measure the audio band THD of a 15KHz reinforces that you do not understand the measurements (hint, there are 0 harmonics of 15Khz in the audio band, hence you cannot measure it). The last post even brings up your name. You may want to try to understand a multi-tone IMD test it will prevent saying things you may regret later. Will you grace us with your list of "measurements that matter" ?

In respect of other people here, I will not respond to this more, as the thread is already off track.

 

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