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
ricevs,
To convince skeptics that your mods increase the clarity and speed, for example, maybe you can explain in technical terms why they produce those sonic improvements.  For example. on IceEdge amps like Legacy iv2 or Rouge, the input impedance is 38 Kohms or so.  You increase it to 150 Kohms.  To make an analogy with moving coil phono cartridge loading, I have always found that high loading of 47 Kohm yields more HF with clarity compared to loading in the 100's.  Some have claimed that the 100's avoid the HF boost from loading at 47 Kohms.  Personally, I don't care about whatever technical flaw of HF boost occurs--I like the increased openness and clarity at 47 K.

So why did the stock designers settle on 38K?  Didn't they experiment with 150K?  Maybe you will say that they didn't put in as much listening time as you did, and just decided that 38K measured well and they just settled there.

More generally, if Voyager did all these revisions, they did the listening.  So why do you get better results after only a week of playing with it, compared to their 2 years of delays due to their tweaking?
Just a waste of time.  Most of the stuff that changes and improves the sound has no technical (measurable at this time) benefit.  You cannot convince ANYONE of anything.  They have to be ready to change.  The ego does not want to change......its whole game is survival of what is ALREADY known.  Just like you are addicted to constantly talking about clarity and speed......and I am more and more addicted to Love and listening, sharing and mother/fathering.   What addictions are most beneficial to real knowledge and real joy?  We are all addicts!  I love you.
OK, you can talk about love and so on, but you also mentioned that your mods bring more clarity and speed.  You talk about that also, which is fine.  We don't know all the technical correlates of great sound, but a skillful designer knows what circuit designs bring about whatever type of sound he desires.  You also must know a lot about this also, such as why 150 K sounds more open or whatever.  It is more obvious why your direct connection to the internal wiring, bypassing the binding posts, yields more open sound.


OK, you can talk about love and so on,


Always the peace/love/dope/Woodstock card comes out when backed into a corner.

Changing the input impedance from 38k to 150k will do absolutely nothing if the source has a "normal low'ish" (say <150ohm) output impedance that will drive both, making the input 150kohm, could very well "only serve" to have higher measured noise in the end.

And willy/nilly changing the input of an amp to something 4x higher "can" create offset and other problems, there was a reason it was 38k to start with.

Cheers George