Right. So... this is all what I'm extrapolating....
He says:
- Where you put the gain
- Where you put the eq
This does not imply that they've modelled various gain stages across all the different amps. All it implies is that the Kemper can now know where your analog controls were set to. As far as I can tell, he's talking purely about knob positioning. Not changes to the underlying algorithms within the Kemper.
IE: when you're selecting your "amp model" on the Kemper it isn't changing the nature of the Kemper's distortion. It's just switching the EQ block over to a modelled EQ.
In addition to this, you can tell the Kemper "I had my original knob values at these positions" and that will then apply the correct offset so that the values match up against your original amp.
That's exactly how I heard it all too. It's modeling the tone stack EQ, and it models the gain range of the original amp, but it's not changing the underlying amp model to add gain in a realistic manner.
So I can't take a profile of a Deluxe Reverb where the gain is on 3 and then turn the gain up to 8 and expect a realistic tone. I'll hear the same digital clipping as before. I can take a Deluxe Reverb where the bass is on 3 and treble on 6 and change that part of it, but not the gain. CK, HW, and MB all never spoke about adding gain to profiles, just changing the EQ and scaling the gain. Their example was a Deluxe Reverb will never go past about 5-6 on the Kemper gain knob, so now 10 on the gain knob is 6 internally.
For me, I'm not sure how much of a game changer that is, until I see and hear it. It's certainly much more helpful if you like a profile and want to tweak the tone stack EQ (the Vox is a good example of that), but it's trickier to virtually move the mic further away if it's too bassy, or again turn up the gain on a Plexi from 3 to 8, or even trickier, turn up the preamp gain and master of a JCM 800.
None of this is to take away what they are working on, or the value of Kemper. It's plug and play with the ability to tweak and get realistic outcomes. Even with the new cabs in Fractal or Helix, there are fewer options in moving from thousands of IR's to a handful of cabs and parameters, but it's still coming at it from an engineering side rather than a musical side. You're trying to figure out where to move the mics and mix to get the ideal tone, rather than going back to basics and thinking (I need more midrange so I can cut through the mix).
I still think that's an area of opportunity, and Kemper has a leg up there as there's fewer but more powerful parameters, and those may be if not easier to understand at least different enough to approach it in a more useful manner. So for example rather than trying to select a microphone and move it off axis and towards the speaker edge and blend a second mic and pull it back and play with high and low cuts and and and, you instead turn the definition control and adjust the low/high shift and the familiar BMTP post-EQ.