How much does a Zobel network and its components affect the sound of speakers?

Said someonenew who never recorded anything in his life and likely has fan-boy comprehension electronics - cables - speakers - room.

English is also a problem. There are no metaphors in the quoted text.

What makes a Zobel in an amplifier which may be connected to a nearly limitless combination of cables and speakers more valid than a Zobel across a speaker to tame its specific impedance curve?

Said someonenew who never recorded anything in his life and likely has fan-boy comprehension electronics - cables - speakers - room.

English is also a problem. There are no metaphors in the quoted text.
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Ah................. obviously YOU must be a gifted audiophile savant.
My gracious genuflection to your advanced understanding!
ALL cynicism genuinely intended.

My system:
Moscode Minuet in A (G. Kaye updated 2019)
AudioNote cd2
Magnepan T-1D (recoiled) mid-range -> Moscode 402AU (amp #1)
Magnepan T-1B bass panels (recoiled) bass -> Moscode 402AU (amp #2)
Sequerra T-2 ribbon tweeters (only pair made) treble -> Levinson ML-9 (amp #3)
Vendetta Research (J. Curl) X-O

Transcendent T-8 6c19p-ev OTL headphone amp
Light Speed passive pre-amp.
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Me:
Retired
electro-hydraulic servo system engineer - designer 36 yrs. 
FAA lic. AP-IA 42 yrs.
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Thats all to say.

Yawn...

Owning a GT40 would not make me Ken Miles.