It is pretty easy to null an amplifier (much easier than it is to null DACs) under actual load using actual music.
IF there are audible differences (amplitude, phase) they should be quite measurable, audible and quantifiable with this method.
That would take the fun out and require specialized equipment to do this.
The funny thing is that distortion measurements over various levels and frequencies (what Marv is doing) shows there cannot be any audible differences and the Magni is 'transparent'. That is .... if that is done with an actual load and not a resistive one.
When the other amp used is equally 'transparent' then the reason for a clear audible difference (14 out of 16 would be a clear difference) should be investigated further with that set of ears to determine what the 'tells' actually are. They don't seem interested in that though.
Keeping the myths alive seems to be main focus (and to ridicule Amir and ASR readers).
When there are audible differences they must be pretty measurable is my standpoint until evidence says otherwise. None so far in the last 30 years for me.
If not then it must come from 'the unknown' signal or Rob Watts is right and -350dB matters.
We have to remember stereo is just 2 voltages changing over time. It is not magic. Amplitude, phase and time.
It would be fun if these blind tests were witnessed. We have to take Marv's word for it that he actually level matched correctly and that the paper he wrote the results on is what really happened.
Schiit test too... was it witnessed ? Properly level matched (under load) ? What was the other amp ? participants ? Measurements ? results ?
Maybe they actually can hear differences, that are even quick to recognize. Too bad those folks do not seem to be interested in finding out the why. Only to say they (and others) can.
When one wants to prove something to yourself a blind test is fine. When you want to prove something scientifically it has to be witnessed and validated and even repeated by someone else.
So far there are only the usual claims and the 'evidence' is on super thin ice. The ice has to be thicker and one would need the golden-eared folks to do this in a 'not at home with friends' setting but with a test setup by someone that can actually verify the results.
As long as that never happens it will always remain a 'yes, no' game.
Let me say this again. I like Schiit but don't have any of their products. I like the pricing, the marketing, the interaction with the public, I like that they listen to and do something with feedback so have no problems with the brand nor the individuals.
