Zilla fatboy cab. Resonant frequency curve?

Clockwork Creep

Power User
Hey there.
I have a Zilla fatboy, with G12M-65 Creambacks. 2x12.

Has anyone measured what are the authentic Speaker resonant curve settings are for this particular cab? (Amp block > Speaker page.)
If not, any way I could approximate them?

The best idea I had it to look up G12M-65 specs and maybe find the info there.
And here's what I found:
graph.gif

This looks nothing like the curve I have to dial in the Axe FX... why? What can I dial in? :D
The one other value I've seen in the specs sheet is "Resonant frequency: 75".
So, I guess I have one of the resonant frequencies... but no clue how strong. Or... whether it's still accurate if my cab is a 2x12...
More info:
http://celestion.com/product/123/G12M_65_Creamback/
 
The curve in the Axe amp block is an electrical property of the speaker load, not frequency reaponse as such. Set the resonance anywhere around 110-130hz and it's good.
 
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