'Why I don't buy "Analog" EQ Plugins'

[Gswitz]

I recorded direct and reamped. I sent the same signal to both thu and the amp.  I used a passive reamp box i soldered from a kit. The amp sounded great. Then I just had to match it. I adjusted gain in. I adjusted adjusted knobs for a long time. I think i made a video of it. 

 

[mettelus]

Take a quick spectrogram comparison between the live mic setups and the TH3 bounces, it sounds like there is significantly more high end from TH3 (artificial content) than the live mic captures. An EQ matching algorithm can sometimes assist with a post-FX-chain EQ, but they are definitely useful to visualize the frequency differences (the curve required to get the "match"). I suspect that what you are seeing may be more than just the mic shift, but the fact that TH3 is exposing and processing more harmonic content than the live setup does. I have not used TH3 in a while but thought that had more control over mic placement and orientation, but I may be confusing that with another sim.