high negative feedback amplifiers tend to exacerbate cable differences.
not because high negative feedback is better, but because the negative feedback network becomes over excited and corrects transient function after the horse has left the barn.
that’s how high negative feedback works at high frequencies.
this mess of over correction leaves a trail of odd harmonic hash, which some misinterpret as signal, and thus ascribe to being cable differences.
all the transistors, the BJT types, and the MOSFET and FET types, are also non linear in their gain, so they also add odd harmonic hash.
Also, since the correction is lower in level than the main signal, the reflection of the correction -into the signal... comes about as a negative non-linear function in the complex harmonic pulse.
Since it is non linear in the gain department and the correction is at different level, then the correction can’t even trace the ’desired to be eliminated’ signal correctly. (it’s done in a different spot in the gain curve)
When we lost the linear gain of tubes and V-Fets ---- it all went to hell.
It has literally been downhill and backward, every step of the way, since then.
not because high negative feedback is better, but because the negative feedback network becomes over excited and corrects transient function after the horse has left the barn.
that’s how high negative feedback works at high frequencies.
this mess of over correction leaves a trail of odd harmonic hash, which some misinterpret as signal, and thus ascribe to being cable differences.
all the transistors, the BJT types, and the MOSFET and FET types, are also non linear in their gain, so they also add odd harmonic hash.
Also, since the correction is lower in level than the main signal, the reflection of the correction -into the signal... comes about as a negative non-linear function in the complex harmonic pulse.
Since it is non linear in the gain department and the correction is at different level, then the correction can’t even trace the ’desired to be eliminated’ signal correctly. (it’s done in a different spot in the gain curve)
When we lost the linear gain of tubes and V-Fets ---- it all went to hell.
It has literally been downhill and backward, every step of the way, since then.