What are the best GaN Amplifiers available today?

III.
CONCLUSIONS
ß For fundamental frequencies of up to about 1400 Hz,
the pitch of a complex tone is determined by the second
and higher harmonics and not by the fundamental,
whereas beyond this frequency the opposite holds;
this is the case both for tones with harmonics of equal
amplitude and for tones with harmonics of which the
amplitudes fall by 6 dB/oct.
ß For fundamental frequencies
of up to about 700 Hz,
the pitch is determined by the third and higher har-
monics; for frequencies up to about 350 Hz, by the
fourth and higher harmonics.
ß The experimental results strongly suggest that the
pitch of complex tones is based on periodicity rather
than on frequency; it is reasonable
that this also holds
for simple tones.
 

Pitch of complex tones -Plomp- 1967 

Perhaps amplifier designer must be preoccupied by the way their design produce Harmonic spectra... 😊

He’s got a lot of company in that regard- many solid state amplifier designers don’t really care what sort of harmonic spectra their amps make.

"Many audiophiles still live their lives according to the myth that we can hear things we can’t measure (which was true in the 1980s) as if somehow measurement technology had not marched into the present the same way that every other tech has improved over the last 35 years!"

The above statement is the real MYTH....it cannot be proven. The TRUTH is that you cannot measure wire, jacks, resistors, solder, removing unneeded parts, upgrading most parts, etc.......but these things all make a sonic differentce that you can hear. In audio...it is the sound that is real.....not some pretend myth measurement dance.

If Ralph wants to believe that everything you hear can be measured....well let him live in that realiy....nothing wroing with that. But, for those with ears.....we know....we know all cables sound different.....and we know there is no measurement tool that can tell us how they measure (because wires do not measure.....other than capacitance, resistance and inductance......which by themselves do little to tell us how something sounds).

The "more feedback equals less differences in parts" thang that Ralph stated is totally untrue (poppycock!). I mod the Purifi amps that have tons of feedback....way more than Ralphs amps.....and everything I do makes the same sonic difference when done on the ZERO feedack digital amps I mod.  I havae worked on several high feedback solid state class A/B amps over the years.......everything I do can be heard just like any other less feedback amp.

Those with Ralph's amp can do a quick test.....just remove the covers and remove all the hardware on the toroidal transformer.....lift it off the chassis and place a quarter inch thick piece of wood underneath.....put the transformer back down and listen.  This CANNOT be measured.....but it can be heard....by YOU!

The Iconoclast wires by Belden were designed by a very scientific guy. However, they make them in three grades.....regular copper, OFC copper and PCOCC copper........do they sound the same?....(same exact construction, just different pruity of wire)....NO, the more pure wire ones sounds better......Can they measure the difference?.....NADA.

Have a great every moment!

Everyone knows that Ralph is the real deal and gentleman.

’Nuff" said

Many believe you can hear things that you can measure, yet it is proven to be out of the ranges of human hearing.

like what you like, to hell with what others say. Like re soldering makes a difference. Only those that benefit monetarily act like they believe it makes a diff.