Has anyone heard the new North American products preamp and amp?

rsf507, also judge ARC gear in 1990 as it must be today.

geoffkait, Mach 1 is simply the speed of sound through the air and yes it varies with temperature, but waves of sound in live performances get to the listener all at the same speed. With other amps, the waves of different frequencies imparted by the speaker drivers earlier and later and thus get to your ears at different times. I must say that I am assuming you are not departing your listening room at Mach 1 and you would hear nothing.

Mapman, we all have our way of saying things. I taught for 45 years and frequently sought to say things in better ways.

Many know I am a fan of Walsh driver technology, the innovation of Lincoln Walsh many years ago. its worth reading up on that.

Walsh drivers operate on a wave bending principle. Rainbows occur essentially due to wave bending.

So there is something to the concept of understanding how waves propagate in various medium and how it relates to sound.

So I understand the problem Roger’s stuff tries to solve to some extent, but cannot comment on how much of an issue this is in an amp or how effective or not Rogers approach is. Many aspects of design in an amp
affect the end results and performance. Not just any one.

Maybe I’ll get to hear this someday and maybe even get a peek inside at the magic sauce. It’s an interesting concept but the explanations are muddy as hell at best.

Claims of 0 distortion set off a clear red flag for me though..  Nothing is perfect.  Nothing.   Approaches zero....I might believe.  Many can and do already make that claim.    The consensus generally is that harmonic  distortion specs alone tell you little meaningful about the resulting sound.       Exaggerations not needed if a product is clearly superior sounding to all the rest.

Tbg, it’s an uh, affectation to refer to the speed of sound in one’s listening room as Mach 1. Give me a break. Actually Roger's whole manner of discourse is kind of an affectation, although I can live with that, so no big deal. Besides most speakers, unless they’re time aligned, provide the listener with the various frequencies of the drivers arriving at different times anyway, no? And are we supposed to just sweep room anomalies under the rug? Comb filter effects mess you up!