Neutral electronics are a farce...


Unless you're a rich recording engineer who record and listen to your own stuff on high end equipment, I doubt anyone can claim their stuff is neutral.  I get the feeling, if I were this guy, I'd be disappointed in the result. May be I'm wrong.
dracule1
Atmasphere wrote,

"Because of these factors inverting the phase is often not audible. You need a purist recording; everything has to be right in order to hear it. We included the phase inversion switch on our preamps on account of the fact that its a real pain in the rear to reverse the phase at the speaker terminals for each recording!"

I participated in John Curl and Bob Crump’s room a couple times at CES way back at the turn of the century and (of course) the Curl/Crump/Thompson Blowtorch preamp used in the room had a polarity switch. A very expensive one I might add. And Bob brought a lot of his own CDs with him to the show to demonstrate that polarity is audible. Very audible. Also in the room was another audio insider, Clark Johnsen, who, as you probably recall, wrote the book on absolute polarity. The CDs that Bob used for the demo were actually not purist recordings. They were good recordings but not purist recordings. Maybe you need a better polarity switch. ;-)

Clark Johnsen in Positive Feedback:

"For that sorry state of affairs, you can blame the commercial audio press. For whatever reason, hardly a whiff of this vital phenomenon ever appears in those precincts. Ultimate Audio, with two feature articles, became by default an exemplar of polarity awareness—quite so, as ultimate audio cannot be achieved without it! A personal disclaimer: I have often called polarity the sine qua non of correct audio practice. As author of the only book on the topic (The Wood Effect: Unaccounted Contributor to Error and Confusion in Acoustics and Audio, ISBN 0-929383-00-1), which explains everything, I naturally applaud the renewed attention. And I remember how Michael Gindi, an Ultimate Audio contributor, once toured the Stereophile Show chanting, "If you can’t hear the Wood Effect, you can’t hear!" I expect he still stands by that, though nary a peep recently."

geoff kait
machina dynamica
What's the beef?

atmasphere says phase switch may not always  be audible.  Geoff say it was in certain cases cited.  

Breaking news:.  No inconsistency here.     Is it always necessary to have the last word?   

I'm sure I won't be the one.  😭
mapman

You'd think such a high precision device like that if truly possible  that would cost more than a few grand. 
Because of the "basic" look of H-CAT (chassis, etc.) it might not win any beauty contests but you quickly realize that most of my resources were put into the circuitry and function. 

Roger
Map man wrote,

"atmasphere says phase switch may not always be audible. Geoff say it was in certain cases cited."

Funny, nobody has actually been able to point to ANY errors in the Polarity Database. That being the case I suspect we’ll just have to live with 90% of audiophile CD recordings being polarity inverted and press onward. Hell, the phase anomalies in the listening room alone are sufficiently great to swamp a perfect recording, a perfect amp, perfect speakers. Many contented audiophiles are sitting right directly in the middle of a standing wave, anyway. Who’s zooming who?

But getting back to the point of my bringing up polarity in the first place, can Roger’s amp really provide the "live" experience with issues of polarity and compression and room anomalies?

g. kait
machina dynamica
almarg,

Roger, I of course don’t question the innovative nature of your design, or the quality of the results. But to provide some perspective on the numbers that have been cited:

A million is of course a 1 followed by 6 zeros.
A billion is a 1 followed by 9 zeros.
A trillion is a 1 followed by 12 zeros.

The human brain contains approximately 100 billion cells (a 1 followed by 11 zeros), according to various references on the web.

800 db, as used to represent the ratio between two quantities of voltage or current or sound pressure level or various other variables, corresponds to 1 part in (1 followed by 40 zeros)
Yes I know if you do the math - that's what I have too.
Its a very large number. (very high voltage gain)
This is why I had to resort to quantum physics.
You cannot use standard components.
It might seen like overkill to some but quite necessary and obvious when applied.

BTW 100 billion cells in the brain relates to brain mass as does not translate into thought capacity or discernment. The ear-brain system does real time "calculations" to recreate an image in the "mind" (which has no mass).

Roger